qualification and performance of eletrical
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8/9/2019 Qualification and Performance of Eletrical
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IPC CC 8308
wit
Amendment
1
Qualif ication and
Performance of
Electrical
lnsulating
Compound
for
Printed Wiring
Assemblies
ilil PETROBR S ETM·
CORP ST DTl
CÓPIA
CONTROLADA
NR
~ 1 4
Á R E
-@f/5T[@I I-
J i ~ . l f ,
D T :
f j ~
A REPRODUÇAO
TORNA
A CÓPIA
NAO CONTROLADA
October 2008
Supersedes IPC CC 8308
August2002
A standard developed by /PC
Anoci tion onnecting
Electronics
lndustrits
e ç · ~ W I I ~ . . . . . . . . , _
~ l l r i H I ... IIJIC
~ · ~ ~
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uperse es
IPC-CC-8308 - Augusl
2002
IPC..CC-830A with
Amendment
1
July
1999
IPC·CC-83 A - October
1998
IPC.CC-830 - January 1984
IPC CC 8308 with Amendment 1
Qualification and
erformance of Electrical
lnsulating Compound
for
Printed Wiring Assemblies
Developed by
lhe
Conformai Coating Task Group 5-33a)
oi
lhe
Cleanlng
and Coating Comminee 5-30)
Users oi this publication
are
encouraged
to
particlpate In
lhe
development oi futura revisions.
Contact:
IP
3000
Lakeslde
Drive
u ~ e 309S
Bannockbum, lllinols
60015 1249
Tel847 615.7100
Fax
8 7
615.7105
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IPC
·
OC-8306 wlth
Amendmool
1
Octobor
2006
cknowledgment
Any document invol•ing a complex tc:chnology draws material from a
•ast
number of sourc:es. While lhe principal members
of
lhe
Confonnal Coaling
nst
Group (5·33a)
of
lhe
Cleaning
anel
Coaling Committee (5·30)
are
shown
below, it
os
not
poss
ible to include ali
of
tbose who assiJtcd
in
thc evolution
of
this standard.
To
cach
of
thcm, llle members
of
thc
IPC
cxtend lheir gratiludc.
Cl ing and Coatlng
Committee
Chair
Douglas
O.
Plluls
Rock
weJI
Collins
Vice Chair
Debora
1 . . Obil>.
Trace uboratorics • East
ConforTMI Coatlng
Taak
Group
David Adams, Rockwell Collins
Greg Alexander, Asccntech, I . I . C
Gustavo Arredondo, Pura Tcch
Coating Inc.
Paul Berry, Dow Coming
Corporation
Gcrald l,.,eslic Boecn, Bechtel Plant
Machinery, Inc .
Calette Chamness. U.S. Anny
Av iation Missile Co onmand
David Corhett, Defcnsc Su pply
Ccntcr Columbus
Rudigcr Dietrich, l,.,ackwerkc Pctcrs
GmbH
: o KG
Mahendra Gandhi, Nonhrop
Grumman Space Technology
ll
ue
Gr
ee
n, Lockhced Manin Space
Systems Company
Michacl Green, Lockhoed Manin
Space Systems Company
Amy Hagnaucr, Rayllleon Company
Steve Hcnly,
Ac:ota
Limited
~ J i
c . ~
...................
~ ...... . _.... ...._
Conformai
Coatl
ng
Taak
Group
Chair
John P.
Waryold
llum•Scal Division
or
Chasc Corporation
Vice Chair
Debora 1 . . Obitz
Tr: cc uboratories - East
Chnstopher
u n ~
National Physical
l,.,aboratory
Joscph Kane,
BAE
Systems Plolfonn
SoluLions
Joson Keeping, Cclcstica
lntemational Inc.
William Kenyon, Global Ccntte
Consulling
Phol Kinncr, HumiSeal Division of
Chase Corporation
Svcn Kramer. Lackwcrkc Pctcrs
GmbH
Co
KG
Richard
KraS>.ewski,
Plcxus
Coop.
Vijay Kumar, Lockheed Manin
Missilc
:
Fire Contml
Kenncht Manning, Raytheon
Company
Rcnoo Michalk
iewic>.,
l rnce
L.aboratories - East
Roeer Miedico. Raytheon Company
Graham Naisbitt, Gcn3 Systems
Limiled
Dav
id Nelson, Raylheon Company
---
T
echnlcal Ll
alsona
of
-
I
PC oard of
Directora
l eler Bigclow
IMI Inc.
Sammy
Yi
Acxtronics lntemational
Lynn Nonnan, Continental
Automoti•c Systems
US,
Inc.
Victor Powell, L-3 Communications
Av
iotion R
ecord
ers
Barry Ritchic, Dow Coming
Corponuion
John Rohl6ng. Dclphi Elccttonoes
and Safcty
Henry
Sanftlehen, Delphi Electmnics
and Safcty
Jeffrcy Surgcrun
Hu miSea
l
l,.,owell Shennan, Defense Supply
Center Columbus
Gordon
Sullivan, tluntsman
Advanced Technology Ccnlcr
Manfred Suppa.
uckwerke
Petcrs
GmbH
Co KG
Cryslnl Vundcrpan,
Underwritcrs
ubo
ratories Inc.
David Vaugllan, Taiyo America Inc.
Fonda
Wu.
Raytbeon Company
,.,amar Young, Speciahy
Coatin&
Systcms Inc.
: ~ • f l 1 t O I I I I I . . . . . c J I f i C
llfa.QIM
O t iWOO t i M
•
.. ....._,.......,._,.ure
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IPC CC 8XB Wdh
AlliBI
da a t 1
Table of Contents
1 SCOPE
..
..................
..
..
..
.......
.. ..
................................. I
1. 1 Scope ................................................... ............ .... .. I
1.2 Purpose .. .............................. ........ ........ .... .... .... ...... I
1
.3 Classilication .........................................................
I
1.3.1 Types ....................... ..
..
......
..
......
..
......
..
..
..
..............
I
1.3.2
Classes ..................................
..
...
..
..........................
I
1.4 lntcrprehtion .........................................................
I
2 APPUC.t.BLE OOCUMENTS .................................... I
2.1
2.2
2.3
2.4
2.5
2.6
PC
......................................................................... I
Govemment ........................................................... 2
Amcrican Socicty for Testing
of
Materia
is
..........
2
Underwrilel 5 laboratorics .....
..
.............................
2
AN 1 ........................
..
............................................ 2
ISO ........ ................................................................ 2
3
REQUIREMENTS ..................... .................... ............. 2
3. 1
3.1.1
3.1.2
3
.2
3.2. 1
3.2.2
3.
2.3
3.2.4
3.3
Gcncr tl Rcquircmen ts ................... ..................... ... 2
·
e
ams
and Defini
tions .......................................... . 2
ConHic1 ................................ ............ ...................... 2
lnspection and Testing RequiremeniS ...................
2
Qualificalion lnspection and Tcsting .................... 2
Qualification Retcnlion lnspection and Tcsling ...
2
Qual•ty Confonnance lnspeclion Tcsting ............. 3
Additiooal Tcsting ................................................. 3
Molerials RequircmcoiS ........................................ 3
3.3.1 Moleriols ................................................................ 3
3
.3.
2 Shclf
Life ..............................................................
3
3.3.3 Cure
.............. .... ....... ............ ........ ........ ............ ......
3
3.4 Chemical Requiremenl< ...... ........ ............ .............. 3
3.4.1
Fourier Transform lnfrared Spectrosc
opy
Tesl
(FTIR) .......................
..
..............
..
................ ... 3
3.5 Physical Requircmcnls .
..
..
..
..
..
..
..
..
..
..
..
................... 4
3.5.1 Viscosily ................................................................ 4
3.5.2 Appearancc ............................................................ 4
3.
5.3 Fluorcsccocc ......................... ................................. 4
3.5.4 Fungus R
es
isunce ................................................. 4
3.
5.5 Fledbilily .............................................................. 4
3.5.6 I'Wnmabilily ......................................................... 4
3.6 Electrical RequiremcniS ........................................4
3.6.1 Oiele<:tric Withstanding
Vo
lm
ge
(DWV) ............. 4
3.7 Environmcnlal Requirements ........ ........................ 4
3
7
1
Moi
sturc and Jnsulalion Rc
sislance ...................... 4
3.7.2 Tbermal Shock .. ...................................... ...... ........
4
3.7.3 Temperature ond llumidily Aging
(Hydrolytic Stobilily) .................... ........................ 4
3.8 Special Requiremcnts ...........
..
..
..
......
.. ..
..
..
..........
..
. 5
4 QUAUTY ASSURANCE PROVISION ......................
5
4.1 Responsibilily for lnspection ................................ 5
4.2 Categories of lnspection and Frequency .............. 5
4.2. 1 Qualificarion lnspeclion ........................................ 5
4.2.2 Qualification Retention lnspectioo ....................... 5
4.2.3 Quali1y Confonna.nce lnspectJon .......................... 5
4.3 Prodoct Change .....................................................
5
4.4
Tcst Equipmenl and lnspeclion Facilities ............ 5
4.4. 1
Standard Loboratory Condilion• ...........................
5
4.4.2 Pcrmissible Tempera1ure Variation
in
Environmcnlal Chnmbers ................................ ...... 6
4.4.3 Refcrcncc Conditions
.. ..
................................
..
...... 6
4.5 lnspection Rouline ................................................ 6
4.6
lnspection
Samp
ling .............................................. 6
4.6.1
Test Vehicles ......... ................................................ 6
4.6.2 Sample Size ........................................................... 6
4.6.3 Prepar.uion
Prior
10 Coating .................................
6
4.6.4
Coating ..................................................................
7
4.7 Failures .................................................................. 7
4.8 lnspection Reponing ............................................. 7
4.
8.1 Qualification Reponing .........................................
7
4.8.2 Qualification Relenlion Rcponing ........................
4.8.3 Quality Conformance Reporting .......................... 7
5 PREPARATION FOR DELIVERY ...... .... .......... .. ........ 7
5. 1 Co
nminers .................. .............. ..............................
7
5.2 Packaging ..........
..
............................................
..
.... 8
5.3 Marking . ............. .. ................ .. .................... ........... 8
6 NOTES ......
..
..
..
...................................................
..
..... 8
6. 1 Order Da1.1 ............................................................. 8
6.2 Formulation Change .............................................. 8
6.3 Conditioning .......................................................... 8
6.4 Cleanline55 ............................................................8
6.5 Adhcsion ................................................................ 8
6.6 Solvent Compatibilily ........................................... 8
6.7 ldentilication
of
Solvent Sen1itive
Conforma Coaling,> .............................................. 8
C C W ' W i t ~ ~ o - - . , . . , _
0
to\llftlr
iii
~ '
***
I'C
~ ..
I H O l i A A t S. .
JOO I71
10(M.51)• at eONE :: w:t I
t C AA
COM M .
. . . 201.......V U f C
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IPC-CC-8JOB
wfth Al rle.
K I i lt 1
Appendlx A Example
oi
Quallllcatlon lnspection
Report ............ ......................................... 9
Appendlx
B
Example of Quallflcatlon Retention
lnspection Raport ................................ I O
Appendix
C
Eumple of
Ouality
Conformance
lnspectlon Raport ............................... . I I
Flgureo
Agu
re
4· 1 IPC-B-25A ..............................
..
.................. ...... 7
Agu
re
4·2 Tes1 Coupon wllh Y Shape Panem ........ ....... 7
Tablao
_. .. 3 1
Requirements
lo< Ouaiflcalion Quaillcalion
Retenlion
and
Ouality
Conlotmance
oi
Conlonnal
Coeting
........ _ ......_ . . 3
lllble
4-1
Teol
Veh(jes and
Sample
Saeo ......................... 6
lllble
4·2 Thid<ness Requlr.,.,...1s on Test Vehlcle ........... 7
October
2 8
---
ET IIOIIAAaaap m
MIOIMII NONt:IICIIW:
.
OU
M 0
~
Ç I W I I t l
.
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Octoller 2008
Qualification and Performance of Electrical lnsulating
Compound
for
Printed
Wiring Assemblies
1 8COPI
1.1
Scope
This standard estabiishes qualifocntion and
confonnaoce requhements for clectrical insuloting com-
pounds (conformai coatings). lt has been designed and con·
structed wilh lhe intent of obtaining muimum confidcncc
in the materiais v.ith minimum test redund.ancy. This stan·
danl covm:
• The quahficllion and qualificarion n:tention of he confor
mai coating malerial (Table 3-1, Column A and 8).
•
The
quality
conformaoce
of conformai coating matenal
propcrties (Table
3-
1, Column C).
For lhe purpose of lhis standard, lhe tcrm confomoai coat
ing is used herein when referring to a typc of protcctive
couling for use Oll printed wiring a.« mbiies.
The
confor
mai
coating is intended to provide protection
rrom
mo isturc
and contnmination and provide electrical insulation:
not as
a
sole
source o f mcchanical support.
For the purposc of lhis standard. inspections are pcrfomled
011
Standardi7..ed le.St
vehiclcs instcad of reaJ produclion
asscmblies. A standardized test vchicle refcn. to the test
vchicle SpcCified per
test mcthod
indicated, coated with lhe
conformai coating under inspccrion.
1 .2
. . . . . ._ Witb slllndardized testing on standardol.Cd
test vehiclcs undcr tcst cooditioos specified on tcst
melhods
lostcd herein, this standard enables
a
manufacturer to
quaiify his conformai coating product and express lhe
qualificalion it possessos. This standard also cnabics the
manufacturcr to attcst lhe conformance of thc quality of
production to the qualification of ench product.
1.3 .1 T'fpeo Conformai coatings
sh a
ll
bc
categorit.ed
imo typcs by lhe cured chemistry of lhe ooating.
Thc
typc
for multifunctiooal materiais
shall
bc based on
lhe
chemis
try typc which
is the
higbesl pcrcentagc by weight.
Conformai coatings shaD bc of lhe following typcs:
1}'pc AR - Acrylic
1} pe ER - Epoxy
1}'pc SR - Silicone
1}'pe U R - Poiyurethane
1}'pc XY- Par:u.yiyiene
1.
www lpc,org
1.3.2 Clasoeo
Allhough previOtl5 vcrsions of IPC-CC-
830 madc rcfcrence to Ciass
A nnd
Ciass
8
coating classi
fications. thesc c lassifications hove bccn removed. To
bc
quaiified
lO
lhis specifica
t.i
on, a coating must bc hydrolyti
cally stable (formerly Class
8).
Non-hydrolytically stable
coatings (formerly Class A)
no
loogcr mcct lhe require
mcnts of tltis specification and usagc will only bc
As
Agreed 8etwttn
Uscr and
Suppher
(AABUS). Coatings
tbat
meet the
requirements ofClass
8
coaliogs in previous
document revisioos meet the requirements of tltis revisioo.
Note: Ea.rlier \•ersions of lhis spcclfication. as well as
other IPC documents. madc n:fcn:ncc to
C
iass 1,
Ciass
2,'' and Ciass 3 inspection and tesling requirements for
thesc classes that were not directiy correiated to tbc previ
ous Class A and B requi remcnts.
1 .4 lnterpretatlon ..ShaU, lhe impcr.uive fo
rm
of
lhe
verb.
is
uscd th roughout this standard whenever a require
mcnt is intended to express a provision that is mandatory.
Dcviation from a
s
hall" requiremcnt may bc considcrcd i f
sufficient data
is
suppiied to justify the cxce)ltion.
1bc words
should
and
may
tn: uscd whencver it is
noccssary
to
cxpress noomandatory provisoons.
W.U
is
uscd to express a dcclaratioo of purposc.
To assist lhe render, lhe word
sh
all" IS prescnted in bold
charactcrs.
2 APPUC
AB
LE DOCUMEHTS
Thc
following documents of
lhe
issuc currently in effect
form a part of lhis s tnndnrd to the cx tcnt spccificd hcrein.
2.1 IPC•
IPC.B·2SA Mu ltipurpose 1\lst Board
tPC-T·SO
Tenns
and Dcfinitions for lnterconnecting and
Packaging Elcctronic Circuits
T ~ S O Tcst Mclhods Manual'
2.4.5.1
2.5.7.1
2.6.1.1
2.6.3.4
Aexibitity
Oielectric Withstandon& Voltage - Polymeric
Conformai Coating
Fungus Rcsistancc- Conformai Coating
Moisture and ln•uiation ResisiJlnce • Conformai
Coaling
2. Cumtnt 1n11 retiiaed IPC Test Methc>dl ar 1hrough I )C..TM ·etiO tub.crlpUon and on lhe IPC Web aite (wt.W k>c,orQIMYIVIettmelhodt..htm .
~ . . . 1r •• ~ c . • -
...,.,.,., IHI....,...,...,..,ç
~
. . . . . . . . ._ floM IHS
O I W ~ ~ 1 7
. , _ _ , . , ~ $ ' A p l l ) ' l n i ~ · 8 N O N E I O N I E I O U ~ l ~ O O M M .
NG1 . . .
__....,JOI..ot.n11A6 11utC
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IPC-CC-8308
Wltt l ~ t i G i d
IIOf••
t
2.6.7.1
Th
ennal Sllock - Confo
rm
ai
Coo tin
g
2.6.
11
.1 IJydrolytic Stability - Conformai Coaling
IPC-4101
Specification for Base Materiais for Rigid and
Multilayer Printed
Boards
IPC1012 Sectional Sundard for Qualificatioo of Rigid
Printed
Boards
MIL+460S8
lnsulating Compound, Electrical (For Coaling
Print.ed Circuit Assemblics)
MIL-STD-1188
Commercial Pnckaging
of
Sup
pl
iers and
Equipmenl
FEO.ST0-141 Paint. Vami<h. Ll<:quer
anel
Related Materi
ais:
Metbods
of
lnspection. Sampling anel Tcsting. Metbod
4061
anel
Metbod 2012
2.3 AIM<tc.. Soclety for T lng oi
er la l_ .
ASTM·D-1005
Measuremcnl
of
Dry Film Thickness of
Organic Coatings
ASTM·
D-1064
Viscosity of Adhcsives. Tests for
2.4
Undeiwolt.on
LaborM- . •
UL
94 Flammability
NCSL
Z540-1 Calibrnlion Laborntorics and Mcasuring and
Tcst Equipment
2.8 180'
ISO 10012-1 Quality Assurancc RcquiremenJS for Mcasur
ong Equipmcnt -
Part
l: Metrological Confinnation System
for Measuring Equipmcnt
3 AEQUIAEMEHTS
3.1 o r 8 1 Aequlrementa
3.1 .1
Tenna
anel
Deftnltlona
Dcfin
itions
of
temtinology
nppl icable to lhis standard
sh•ll
be in accordance wi th I
PC
T-50 and as stated in 3.1.1.1.
3. 1.1.1
AABUS
This is an acronym for
As
Agn:cd
Bet een User and Suppli.,.. lndicaiCS additional
or
alter
nate n:quin:ments
to
be
deeoded
bet,..ccn Jbe user
anel
sup-
3 . . _ .
. . . . _ . - . . . . . ~ '
W lllrfW
.
IIIrn.OfO
6. www.ul.com
e. www.ant
i
OfO
7.
www
.lto.QtO
October 2008
plicr in the
proc
·urement documentalion. Exarn
plc
s include
contmclunl rcquireme
nt
s, modiflcations to purchase docu
m c n t a t i o
and infonnntion on
1he
drawing. Agrcemems
can
bc
uscd to define test melhods. condWons. frcqucncies,
ca1cgories
or
acccptance criteria within a tcst. if not aln:ady
CS Jlbl
i<hcd.
3. 1.2
Conftlct lo Jbe e>enl of
a
conftict bet,..een lhe
n:quirements
of
this stan<lard and procurement documenl.
the procurement doeument shall Jlke pn:cedence. In the
evcnl of
a
conftict between lhe lcst parame1ers o f this sran
dard and lhe 1es1 me1hods, or a con nict bclwcen the
n:quircmcnts
in
this srandard nnd lhe ap
pli
cable documc
om
listed
in
Scctioo 2, lhis stnndard Shall take pn:cedcncc.
3.2
l . _ t l o n anel
Teotlng Aequlrementa Groups of
inspcction
anel
test
listed
in Tlble 3-1
s
ball
be pc:rfonned
10 verify Jbe abitity of 1 conformai coalong produet to mcct
the qualification andlor
confonnance
requirements o this
standard using lhe tesl mellto<b dcscribed herein.
3.2.1 Quallllcatlon lnapectlon anel Teatlng Qualilica
ti
on co this standard
is
achicvcd whcn a conformai
co
ating
producl meets lhe n:quireoncn1s li>lcd in Column A ofTable
3-1. TesJS sball be perfonned in accordancc wilh lhe tese
methods specified using
1est
specimcns pn:pan:d
in
compli
ancc with 4.6. A qualification onspectioo rcpon shall be
cornplcted in accordanec with 4.8 and relevant lest dali
n:taoned as substaotiatioo for the qualofication. Ao e.umple
or
qualific.ation inspection
report format
is
shown in
Appendix A.
Whcn
a
primer material is used
in co
njuction with
a
coat
ing ín qualifica
ti
on testing, thc prhner uscd will
bc
doeu·
mcnted
in
lhe qualification report.
Confonnal coatings pn:senlly qualified to MIL-1-46058
shall also be n:cogniLCd as mccting lhe n:quirements of
IPC
·CC
-830.
These
products
cuiTCnlly
qualílied
or
in
Jbe
proc:css
of being n:qualified to Mll.rl-46058 prior to
Jbe
publish date
of
this
documenr woll also
be
rccognized as
mccting lhe requirements
of
this document.
l i
should be
no1cd thal MIL-l-46058
is
inactive for new designs.
3.2.2 Quallftcatlon Aetentlon IMpectlon
and
Teetlng
Qualific.ation 10 lhis slanda
rd
con bc rctained when a con
fonnal coating product meets thc requiremenlS Jisted in
Column B ofTable 3-1.
Tesu
shall be períormed in accor
dancc with Jbe test methods speciflcd using test specimens
pn:pan:d in compliance with 4.6 at a fn:queney defined in
4.2.2.1. Pertínenr test results shall be compan:d wilh lhe
---
M O I M S S I A p o c t l 1 1 ~ O U I I 0
E i ~ O : : W l l l
Mil W
. . _ . ,M
0171
M t 4 ~ U T C
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October 2008
Pwegraph Requ
irement Teet
Method
3.3.1
Mate<lals
Vlwal
3.3.2
Shelf Llfe
-
3.3.3
Cu
re
-
3.4.1
Fourier
Transfonn lnfrared
AABUS
Spectroscopy Test
FTIR)
3.5.1 osoosity ASTM 0-1084
3.52
AWearanee
Voeual
3.5.3
Auonlscence
VIII* unde<
uv
Ughl
3.5.4
FtMVJSResislance
IPC-TM-650
26
. 1 1
3.5.5
Aexibility
IPC-TM-650
2.4 .5. t
3.5.6 Aammability Ul84
HB
3.6.1 Oietectric Withstanding Vottage
IPC
·TM·650
2.5.7.1
3.7.1
Moisture and lnsulatlon IPC-TM•650
Resistance 2.6.3.4
3.7.2 Thermal
Shocl<
IPC-
TM-650
2.6.7.t
3.7.3
T e m p e ( = ~ n d
Humldlty
IPC
-TM-650
Aging ly1ic
Stability)
2.6.11. 1
results of lhe original qualifica1ion
1e51ing.
An inspcction
repor sball bc compleled in accordance wi1h 4 .8 ond rel
evonl test data
reuined
as
subslantiarion for the qualiflca
tion rctA:nuon. Ao
cxample
of
lhe
qualificauon
rctA:ntion
inspec:toon repon fonnat is sbown
in
Appendix 8.
3.2.3 Que
ll
ty
Conformanee ln•pectlon T
eetlng Thc
conmtcncy in
quality of a conformai cootina product is
verified when lhe requirements listcd
in
Column C of Table
3-1 lltC satisficd. Tests shall bc performcd
in
accordance
wiLh thc test methods
spec
ified using test
spccimens
prc·
parcd in oornpliance witll
4.6
at a frcqucncy dcflned in
4.2.3. 1. Pertincnt results
sha
ll be comparcd with thc ocsulls
or lhe original qualification testing. An ins:pc:ction rcpo11
shall bc completed in accordance wilh 4.8 and relevam tcst
data retained as substantiation for lhe qualily oonfonnance.
An example of quality conformance inspcc1ion repon is
shown
in
Appendix C.
Confonnal coating qualil)' conformance inspcction is gen
crally performed
by lhe
eoatiog
manufaaurer
.
but
may
wilh appropriatc agrecme01 bc
used
as an inconung mate-
rial inspcction procedun:
by lhe
custOmers.
3.2.4 AddltloNII Testing Additional tA:sting on diffcrcnt
tcst vehicles. a1 diJJerenl tesl frequcncy or conditions. or
for propcnics outside lhe scope of this standard may bc
ngreed upon belween lhe manufacltorers nnd Lhe custon>crs.
lt shüU
not
be used as a subslitute for nny tcsling requirc
ment spccified herein.
. . . . . . _ .. . . . . . . .
,..,_,......., .... l l l ; e l l w
I I C
N O ~ I I I I I · . . . . . . . .
_ _IHS
Coturnn
A
Column
8 Column C
n t l on oi
Quollty
OueUficetion
OuaiHicollon Conlonn.nce
X X X
X
X X X
X X
X X
X X X
X X X
X X
X
X X
X
X X
X
X
3.3 - •rl ls Requl..... .nta
3.3.1
-
The
confonnal
eoating materiais
sball
bc fn:c of delctcrious subslances.
3.3.2 -
L
ife
The
conformai eoaung
sball
mcc1 ali
requirements of tllis standard within thc shelf lifc and slor
age conditions specified by the conformai coating manufac
turer. Shelf l ife of cooting with
two
or more components
sball bc that of lhe componcnt with
lhe
shortest shelf life.
Tests to verify shelf life shall consi>t of lnsulation Resis
tnnce
IR) and Dielec1ric Wi lhstunding Voltage (DWV).
3.3.3 Cure
The
conformai couting sb a ll exhibit a li
desired propenies when applicd and cured using
lhc
proce
dures spccified by lhe conformai coatin& manufacturer.
Wben eoating matA:rials
are
tcstcd as s pccified, lhe coating
material shall be
cuml
to full hardness o lhe time and
tcmpcratwe recommended by the supplier.
3 .4 •1 Fourier Transform
ln f r . .d
Spectroscopy Test
FT1R) Fourier Transfom> lnfrared Spectroscopy (FTIR)
test
slta
U be perfonncd AABUS
as pan
of data galhcring
for the conformai
coa
ting during quaHOcation inspection.
Whcn
uscd in qualificat ion retention inspection, FTIR
3
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IPC-CC-8308 with Ameodment 1
spectra sbaD
bc co
mpared lO lhose obtained du
ri
ng qualifi
ca
tion inspec
li
on. Absorp
ti
on peaks completely missing
or
addilional peaks sig1tify chan
ge
in chemislry prcscnl wilhin
thc
co
nfonnal
co
ating
pr
oduc
t.
A
ch
an
ge
in
che
mistry as
dctcclcd by
FflR
may or
onay
not constituto a product
changc.
Sce
4.3 for lhe definilion of product change.
3 5 Physlcal Requlrements
3. 5.1
Vlscoolty Viscosily
of
uncured
co
n
fo
rmai coating
materiais, excepl typc xy. sbaD
bc
oneasurcd per ASTM
0-1084 and the tcst conditions shaU
bc
defincd by lhe
coating manu facturer. Visoosity shall be measured as
pa
_t
of data gath
erin
g
fo
r the
co
nfo
nna
l coating during qualili
calion inspection. This viscosity data s
hall
bc uscd by l
he
manufacturer to pre-determ
ine
an acceptablc viscosity
range for quaHty confom1ance inspection.
3.5.2
Appearance Appcarancc of confonnal coatiog on
t
he
tesl ve
hi
cle specified herein shaU bc observcd visually
wilh lhe aid
of
a 3-diopter (app
rox
imatcly 1.75x) minimum
magnificalion. Referee inspections shall
he
accomplished
at IOx m
agn
i cmion.
Thc uncured confonnal coating materiais sball bc frcc
of
deleterious substances, bubbles. pinholes, whitish spots,
blistering.
wri
nkl
ing, cracking, and pee
li
ng.
"l'lle
cured con·
fonn
al coating s
ha be
smooth. homogenous, transparent
or
transluccnt. and t
ac
k-
free
wheo
observed at ambient
co
ndition
s.
In addition,
lhe
conformai
coati
ng on the test
vehicles shall have no bubblcs.
pi
nholes,
bl
islers. cracking,
crazing. peeling, wrinkles, mcaling.
or
evidence
of
rever
sion, or cause
a corTOsion.
3.5.3 Fluorucence Confonnal coating
ma
teriai s, except
type XY. s
baU
he
fluoreS<:ent
by ultra-violei illuminalion
(black light).
3.5
.4 Fungus Res.lstance
The
resistaoce o f the confor·
mal coating material to support
or
bc
altackcd by biologi·
e l growlh
shall
be
determincd in accordance with IPC
TM-650, Tcst Melhod 2.6.1.1.
The cured conformai coating s
ball
not contribute to or
he
au
ac
kcd by biological growlh.
3.6. 5 Fleldblllty Tin panels prepared in accordan
cc
wilh
FED-STD-14 1, Melhod 2012, s
hall he
u
se
d as tcst vchicles
for
fl
exibility tcsting. When lhe coated panels are tcsted in
accordan
cc
wilh IPC-TM-650, Test Method 2.4.5. 1, lhere
s
ball be
no evidence
of
cracking
or
crazing on the cured
confonnal coating.
3 . 5.8 Flammablllty Flamm ability tes ting
of
l
he
curcd
co
nfo
nn al
coating sbaD
bc
perfo
nn
ed in accordance wilh
lhe detailed requiremc
nt
s
of
UL 94 Hll (Hori1.0ntal B
um
ing Tesl) tesl melhods.
~ b ' l c o - c ( t ' O ~ ~
~
U I d l t ~ _ l f i
I C ~ O I ~ _ m n d ~ t o o m
Oc1ober 2008
Thc
curcd conformai coat
in
g shall meet UL
94 HB
H
ori-
7.0ntal
Buming Test) requirements:
a. Not h
ave
a bu
rni
ng rate excccding
40
mm [1.57 inj per
minute over a 75 mm [2.95 in) span for specimens hav
ing a thickness of 3.0 to 13 mm [0. 11
810 0.5
12 in ], or
b. Not have a burning rate excccding 75 mm (2.95 inj
pe
r
minute over a 75 mm [2.95 in) span for specimens hav
ing a lhickness less lhan 3.0 mm [0.118 in), or
c. Cease
to
bum before
e
100 mm [3.937 in) rcfcrcnce
mark.
3.6
Eleetrlcal Requlre
ments
3.8.1 Dleleetric Wlthstandlng Vol1age
(DWV)
Oiel
ec
lric
wi
lhstanding voltage of lhe cured conforma coaling sbaD
be measured in accordan
ce
wi th
IPC-TM-650, Tcst Melhod
2.5.7.
1.
There shall be no disruptivo dischargc cviden
ce
d by flash
ove r
s
urface discharge), sparkover (air dischnrge)
or
b
rcal<down
(pu
nc
lure discharge).
Th
e leakage rate sball not
cxc-ccd I
O
mieroamperes.
3.
7 Envfronmental
Requlrements
3.7 .1
Molsture
and
lnsutatlon Reslstance
The
confor
mai coating materiais shall
he
tested in ncco
rd
ance wilh
IPC-
TM
-650, Test Me
lh
od 2.6.3.4. Aftcr lhe
com
pletion of
lemperature and humidity
te.sti
ng cyclcs, lhe panels sbaU
be
mninlained
at the
reference conditions
al a te
mperatu
re
of
25
±
5
•c
[77 ± 9 •
FJ
and a relativc humid
it
y o f
50 ±
5 , for a period
of
24 hours.
The nlinimum insulation resistancc
sha be
5 MO for
typc ER and 5000 M
l
f
or
ali olher typcs during humidit
y,
af
tc
r humidity
and
one to
two
h
ou
rs at referencc condi
tion
s, and after
24 hours at
rcference conditions.
Appcaran
cc
s
ball
be assesscd
and
dielectric wi lhstanding
voltage s
ball
bc tested and meet t
he
requ irements as spcci
fied in 3.5.2 and 3.6. 1 respectively; after 24 hou
rs
at lhe
reference conditions.
3.7.2
Tbermal
Shock
Confonnal coating products s
hall
bc tcsted in accordan
ce
wilh IPC-TM-650. Tcst Method
2.6.7
I,
wi
th test conditions of -65
•c
(-85
•F)
lO 125
•c
(257
•F
], 100 cycles.
Aft
er
lhe lemperature
cyc
les are compleled, the coated
te.s
t
vehicles shall
be
maintained
at
the reference condi tions at
a temperature
of
25 ±
5
•c (77 ± 9 •FJ and a relativo
humidily
of 50 ±
5
fo
r a pcriod of 24 hours; alter which
ap
pcaran
cc
sbaD be assesscd and dielectric
wi
lhstanding
vo
llage
shall he tested and m
eel
lh
e
re
quiremen
ls
as speci·
fied in 3 .5.2 and 3.
6.1
respectively.
3.
7.3
TemperatiK8
and
Humldlty Aglng (Hydro ytlc
Sta-
bility)
Co
nformai coating products sbatl
be
tested in
accordance with IPC-TM-650, Te.st Mclhod 2.6.
11
. 1.
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1l1C conlrol specimen sb.aiJ be mainlainc:d ti lhe n:fcn:nce
condilions ai 5
±
5
•c
[77
±
9 •F)
and 5 ±
S ll> n:lalive
humidily. 1l1C aged conformai coating sball be 1ack fn:e lo
1ouch.
Thcn: shall be no cvidcncc of soflening, chalking. blislcr
ing surfnce tock. cracking, l
oss
of adhesion or rcversion to
lhe liquid slale. The clarily
of
lhe conformai coaling musl
rcmain suitable
for
the viewing o iden
tifi
ca
ti
on markh18S
and eolor codcs used
10
idencify eomponen1s ovcr which
1he conformai coating is applied.
3.8 Speclal
Requi r em•-
Any special n:quin:mencs are
AABUS and shall be
f)()(ed
in lhe procun:mcnl documen
ladon.
4 QUALITY ASSURANCE PROVISION
4.1 Aeaponalbllity for lnapectlon Unlcss otherwisc
specified. tbc conformai coa1ing manufac1un:r is n:spon
siblc for ali lcsting n:quired
in
lhis scandard. Tcs1 facilities
ulili.r.cd musl be agreed upon by ali panies conccrned and
may be ose of the conforma] coating.
ma
nu fucturer
prinled board assembler,
w;er, or
otbcr mulually
tK:ccp
lablc
1cs1 laboratory or combinalion thereof. Thc user reserves
lhe righl
10
confirm thal any of lhe spec
ified
inspeclion
proccdure. and ICSI resulcs conform 10 lhe prcscribed
pnro-
graphs.
4.2 cat .gor i
of
l . _ u o n anel Frequency
4.2.1
OU.IIflcetlon
lnspeetion Qualifica1ion inspcctlon
allows
a
conformai coatiog maoufaclurer 10
asscss
lhe
pnapenoes of a conformai coating product on swod.vdited
lese
vchic:lcs using standardiled tcsl proccdun:s. Variation
10
thc qualified formulation may or
moy
nol imply a
change of producl,
and
may or may
f) )
be in<pected for
quolificolion as a
new
producl accordingly. Scc 4.3 for
dcfinilion
or
Product Chtmgc.
4.2.1 .1 Quelfflcatlon lnspectlon Frequency Conformai
coaci
ng
quaJillcation inspcction sball
be perfomlcd
oncc on
each confomlal coating
p r o d u c t
4.2..2 Quellftc8tlon Retentlon lnspectlon The qualifica
lion
of
a confonnal coating
product
can
be
n:tainc:d witb
lhe salisfactoon
of
qualifieation n:tention inspcction.
4·.2..2. 1 Quallc.atJon Retentlon lnspec-Uon Frequency
Conformai
coating
qualification retention inspection shall
be
performed once every 1wo ycaJS on cach confonnal
coating producl in order lo prove consis1ent compliance
10
thc original qualifocalion.
4.2.3 Quallty Conlormance lnopectlon Quolily con
formoncc inspection sball
be
performed in order 10 cxprcss
co
nsis1cn
cy
of
ona1erial properties and proccss con1rol.
Balches
of
conformai ooating material shall be inspccted
for compliance
10
lhe original n:quin:ments fulfilled during
qualification testing ata frequency 1dcquate to assure o n ~
tinuing performance. Quality
conf
ormonce inspection
shall
be int
eg
rated into stat:islicnl process
concrol
programs
or
olloer
qualily a.';.,ura.ncc progrnms
(e.g.,
ISO 9000).
4.2.3.1
Quallty
Conformance lnepectlon Frequency
Quality conformance inspeclion shall be performed for
every batch
of
confom•al coating product. A batch sbaU
consis1or ali conformai coa1ing ma1erials produced by one
continuous run. Baleh iden1ifica1ion is n:quired (see 5.3).
4
.3 Product
c.._ The following variatioos in lhe for·
mulatioo
of
a conformai coaung material origioally quali·
fied by
a
supplicr conStiiUtc a prodUCI ehangc and sb.aiJ
n:quire a oew name or prodUCI dcsignation. 1l1C cxtenl of
lhe
name
ehangc is
up
to the
supploer.
but
lhe
changc in
tbe
name
or
designation must
be
promoncntly displayed andlor
obvious to lhe customcr or cnd-user. Addilional qualifiea
tion of tbe changed conformai coalin&fonnu lation shall be
n:quired. Qualificntion rcsuhs
of
lhe original formula are
not to be assumed for lhe new formula:
• Changcs excccding ± 2 in the fonnula wcight
of
any
nonvolat ile
in
gredient
from
lhe ingrcdicnt's original for
mu
la
wcigltt
• Addition or eliminotion of any nonvolatilc ingredient.
• Changes in type or d)·e of pigment.
• Addition. dcletion or ehangc in composition
of ..
ncn··
materiais
in
lhe
formulalion.
1be following do not constilute a chanse in formulation
and do
oot. n:quire addllional quahfieation
of
lhe cbange.
bu1
do
n:quin: notification
of
lhe
cus1omer.
• Changes of lcss than
±
2% in thc formula wcight of any
nonvolatile ingrcdient from thc ingrcdicnfs original for
mula weight.
• Addition. eliminntion or chnngcs in any
vo
latile ingredi
cnt (solvent)
wi
th less lhnn I dricd weight o f residue in
tbe dried confonnal coa1ing (using rccoonmended drying
pnocedures).
• Changes in the ratio
of
sol id
.s 10
volatile for viscosity
adjustment.
4.4
Test Eq u i n t
anel
lnopecllon FacMitlea Tcst and
mcasuring oquipmcnt and onspcctoon facilitics shaU be
of
sullicieot accuracy, qualily and quanu1y to penni1
lhe
per
fonnaocc
of
n:quired inspcctoon and sb.aiJ
be
CW>blish<d
and
maintained by orbe accessoble
to
til coocemed parties.
The
establishment and maintcnance
of
a c:aJíbration sys&em
to control tbe accurncy
of
lhe measuring and 1e s1 equi >"
ment shall be
in
accordance
wi1h
ANSIINCSL Z54().1 or
ISO 10012-1.
4.4.1 Stanclard Looboratory Condltlona Tese measure
ments and condilions, unless
otJ1crwise
spccilied herein, or
~
............
._
Olclw
.._. . . 02022....,
* l r : t l l ~ U . I J 0 0 1 l 1 1 0 0 4 S i f · S i M O f i i : I Q M U ~ I * » > t M O O W I M
N o l t : r ~ 11•5 ,.vrc
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IPC·CC-l 306 with Arnenánenl I
in
lhe
indi
vi
dual test method,
.sh adl be
mode
at te
mperature
of IS lo
5
•c
[59
lo 95 °F]. ni r pressure o f
650
lo
800 millimeters mercury
[0
.86
10
1.05 bar],
and
a maxi
mum relalive humidily
of
75 .
Whencver lhe test condi
lions musl
be
closely conuollod in order 10 oblain repro
duciblc rcsults
for
referee
purposcs.
tcmperawre, relath·c
humidity
8Jid atroOSplleric
]nSSUre conditions o f
25 :1: 3 OC
(77 :1:
5 4
"F). 40 to RH. and 630 to 800 millimctctS
mcrwry
[0.86 to 1.05 oor(. shaJJ
be
specifiod.
4.4 .2 Permi
b _ Temper•tuN VarfatJon In
En v
lron-
menUI
Chambers When
chamber$
are used, specimcn l
under test shall
be
locatod o
nl
y within
th
e working arca
de i
ncd
as
follows:
a..
Reference tempcraturc varin
tion
within
wo
rking arca:
The conuols for lhe
ohambers shall
be
capable
of
main·
laonong lhe tempera Urc
or
tny
single
rcference point
wolhin the worlcing arca wilhin
:1:
2 OC (:t
3.6
"F).
b. Spatial temperature varialion within working arca:
Charnhers shall be so constructod lhat, at
any
given
time. lhe tcmperawre of
any
poinl wilhin lhe worlcing
arca shall not devinte
mo
re lhnn 3
•c
[5.4 •F] from lhe
re rerence point,
cxcep
l for thc irnmediate vicinily o r
spec
imens generating heal.
4.4
.3
Aeferenc:e
Condltlona Rcference conditions
ns
a
base for
calculations shall
be 25 OC
177
°F] for
tempera
lurc.
761J
millimcters mcmory (1.01
bar)
of air
]nSSUte,
and
a rclati''e bumidity
of
4.
11
lnapoctlon
Routl-
lnspeclions sball be performod
in accordance with lesti
ng
rcquin:menls defined in 3.2
Jhcn:of. Tcst specimens shall bc prcpan:d in accordance
wilh 4.6 and subjcctcd 10 lhe 1>roccdure
of tcs
t melhods
lislcd
in
Table 3-1.
October 2008
4 .8 lnapection
SampUng
4.e .1
Teot
Vehlcles Test vehiclc lo
be
uscd shaU be in
aecordnncc
lO
specific test method
as
oullinc
in
Tablc 4-1.
A IPC-B-25A
Standard Tes1 8oard is
illustratod
in Figure
4-1.
Test pancm to be
usod shaU be
as
specifiod in
lest
mclhod.
Tcsl asscmblies for temperature
and
huntidity aging tcst
sh•ll be made wilh lhe
ba. C
mnterinl
in
aceordance wilh
IPC-4 10 1121, IPC
-4
10 1/24, IPC
-4
10 1/25 or IPC-4101126.
wilh lin plated
or solder
coatcd 17
~
copper " Y" shape
conductor.
as
illus lratod in Figure 4-2.
Test
assemblies
shaJJ contain two resist.ors. one with marking ink and one
wilh color code oors.
Glass plates lo
be usod
sh all be standard labor. tory
glass
plates
of S mm
x
SO mm
(1.97
in
x 1.97
in
minimum
si
te
e ~ l
slrips for ftammability lcsting s
hall
he 13
mm
[0.512
in
I
widc
by
130 mnt [5. 11
81
long
in ~ o r d a n c e
wilh
UL
94
specification.
Tin
pancls
sball
bc preJl'lred in occordance with FED-STD-
141, Mc1hod 2012.
4 .e.2 Sllmple Slze
The
minimum number of tcsl speci·
mcns shaU be as ouOinod
in
lloble 4-1, or il shaU be of
sufftetent quantity to achieve stallslical confidence rcquinxf
by
agreement between
cuslomer
and
supplier.
4
.e.3
Pre Niratlon PriO< to
Coatlng 1bc
prcpared
tcst
vchiclcs sh
aU
bc clcaned, hnndlcd nnd stored
so
lhnl,
at
lhe
time o f priming and/or coaling, th
cy
meet lhe cleanlincss
n:quin:menls of LPC-60 12 (scc 6.3 and 6.4).
Table
4-1
Test Vehlcleo
ond
Somple Slzes
p......,
THC to Run
3 52 Aj>pe8tance
3.5.3
' '* '
.6.4
Thlcl<n-
3.5.4 Fungus ReslsJanoe
3.5.5 Flexlblll )l
3.5.6
Flammablllty
3.6.1 llo4laetrlc Willlstanding Vollage
3.7
.1 Moislu<eand lntulalion Resistanc:e
3 72 Thermal
Slooek
3.7.3
Temperalure
erod Humldily Ag
i
ng
(Hydrolytlc
Stablhtv)
~ A ~ ~ . . . . . . . .
..........
HI_.......,_
-c
............... . . . . .
TM
VIsual
VIsual unc1e< IN
ASTM·D-1005
IPC·Th1·650
2.6.1.1
IPC·TM·650
2.4.5.1
UL94 HB
IPC·TM-e50
2.5.7.1
IPC-TM-e50
2.6.3.4
IPC-TM-650
2.6.7.1
IPC·
TM-650
2.
6.
1
1.1
Numbe<ol
est
s.,..,-
Glass Plote'
4 ooated,
1
oocoated
Glass Plale 4
coa
ted
Tln Pane
l 4 coaled
UL94 Test
Str1p
20 ooaled
IPC·t3-25A
5 ooated
Test
Board
IPC-8·25A 4 coated.
Tes tlloatd I o.ncoatad
IPC-8-25A
5 ooated
Test
Boatd
Y '
Shape
Tesl Assembly
5 coatad
( l as eonlrol)
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IPC-CC-8306 wit11 Ameum"" I
shall be of a corrosion resistant nuucriaJ that wiJJ not reoct.
dclcriorate
or
affoct lhe qunlily
of
lhe
co
nfonnnl COaling
producl being packaged. Whcn
a co
nfomtal coating prod
uct consist of more than onc componcnt.
each
comp >nent
s
haU be individually fumished
in
sufficien1 quantities
nee-
CSS I)I 10 neact
wilb
lhe
other
and
un arnowu 10 be
11101
spccificd
in
lhe purchase
onlcr
.
5.2
PacUglng Preservation, packing
aod
marking
shall
be in accordance wi
1h
MIL-ST0-1188.
5.3 Mar1úng Tbe following mnrkings
are
required:
o. Manufac.turer's pan numbcr
b. Manufacturer's lot or batch numbcr
c .
Namc of
manufactun::r
d. Dale of manufacture
e. E.piration dale
f. Prc<:autionary baodling
8 NOntS
8.1
Order
Data 11
is recommcndcd
lha
lhe following
informalion be spec
if i
ed in procurcmcnt documcnts:
a. 1'itlc. number
and
dale o f lhis s landord; 1ypc (scc
1.3.1)
and
c lass (see
1.3.2) of
ma1crial conlllincd
in lhe
pack
age
b.
Solvcnl compatibilily infonnalion
c.
Spccial packing inS<ructions i f requircd
d. Sizc
of
containers
c. Quontity
of
material rcquired
f.
Other .special instructioni
e 2
Formuletlon Change
h
is imp011ant
that
the proper·
tics
of conforma i coating
material
rcmain co n
sistenl
throughout lhe life
of
the producl. Small changes
in
che
composition
of lhe
macerial may havc dramatic cffeccs
upon
c:enaio
properties
(
such as
Harnmability, adbesions.
etc.) and
hence
behaviors of lhe
prodUC1
during lhe appli
cation process and
in e:nd
use env1ronment.
Compat.ibifiry
or confonnal coating
with
associ tucd materiais can orten
be
n scnsitive issue. Thercfon:.
it
is
impo
rtant that fonnulation
co n
siste
ncy be maintaillCd and uscrs be infonned whcn any
changc has
bccn
made.
8.3
Condltloning h
i<
recommcndcd lbat lhe cest boards
be bakcd at
121 OC
[249.8
' P) for
minimum
one
bour, bul
no
more lban four hours. prior 10
roatiog
.
is
also sug
gesccd lbat
lhe
cnvironmenl
in
hich
lhe
confonnal eoating
•s
applicd should
be
clean. Monicorin& of relativc hwnidicy.
temperature
aod
panicle counls
CIUUres
a better-coaled
asscmbly.
8.4
Cleanllnea
11 is
of
parnmount imponance thal
the
ICSl
vchiclc be thoroughly cleancd prior 10 confonnal coai-
ing application. A ..
dirty
. test vchicle will decrease valucs
for dielectric withstanding voltoge. insulation resistancc.
and will advcrse
ly impact adhe.sion. An
unclcan
1cst
vehiclc cannot yield
an
accunnc evaluation of thc
oo
nfor
mal ooating material.
e.e - lbe levei of
adhesoon becwccn confonnal
eoatings
and
subSlraleS varies greatly. Among
lhe
factors
which inHucncc adhesion
are soldenng prooedures,
primcr
and/or coating application, curina process, chemistry
or
conformai coaling. sol
der
mask. flu•
ond
cleaning
agent
(if
uny).
Some
npp li
cations require
hi gh -lcvcl
adhesion; others
dcs ire easy remova
of
eonfonnal coating from lhe coalc
dasscmbly
.
Tbe
k
ey
10 chc dcccrminalion
of adhesion
rcquircmcnt is an agreement between manufacturc:r/
osscrnbler or asscmbler/uscr or conformai
coating
, sup
poncd
by adcquale underscandona of subsequenl manufac
luring
processes aod cnd use
environments.
Thc adhesion tese
used
shall bc
agrccd upon lhe
manufacturcr/asscmbler
or
assemblcr/u.ser
of
conformai
coa
ting.
A
scondord painl 1
ypc
cape lese may
be
used for
some coated printed wiring assemblies. Alte
mate
methods,
such as temperature andlor humidity cycling etc
•
may
be
employcd.
n.e
applicabilily of 1es1 result
sball be
decer
mincd
by lhe user.
e.e
- CompatlbllltY
n.e
compatibilicy
of
a
confor
mai coating
prodUC1
wilh
sohenc
s may be evaiW Icd to
avoid
potencial degradacion of conformai
coating and
coatcd printcd wiring assemblics in subsequenc manufac
turing processes or end use cnviro
nm
cnts.
Dcscribed
below is a
recommcnded procedurc for lhe
cvalua
Lion
o f
solvcnl
compmibil
it
y
of
a conformai
coa
ting
prodUCI.
L
lmmcr-se a coatcd specimen
in lhe
sol>ent
ac 25
±
OC
[77
±
9
°FJ
for cwo minut
es
b. Remove
lhe
coalcd specimen
fron1
solvenL air dricd for
lO minutes at arnbicnl laboratory conditions.
c.
Ovcn
bake
lhe
coaced spccimcn for
30
minutes nt
65
±
3 •c tt47 ± sA •FJ.
d . Cool lo room lempcralurc.
e . Examine coated spccimen for evidence of surfacc tack,
blislering, dilation ond color change.
8.7
- o
..._
Conform8l CoM-
Inga
is
recommendcd lhac solvent sensitivo conformai
coating be identilicd on lhe coaled prinled wiring assem
blies
by
using labels.
bar rodes,
color-coding. ecc.
Tbis
will
provide usefu
l
cautionnry
information for
s
ubscqu
ent
manufacturing processes
a
ndl
or cnd
use
app
l icacions.
which mighl otherwise in
cur
solve m incornpatibiJity.
8/9/2019 Qualification and Performance of Eletrical
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Appe.ndix A Example
of
Qualification lnspectlon Report
ManufactuNr•a ldentificetion:
lnapection Comptetlon
ON
:
Product ldentffication:
Conformai Coating type:
CureType:
A ptlmet' W UMd in conjunction with thla prodl.td durt"9 qualific ation
tnting
[ I Yoo
I
No
Primo<UMd:
Teat
Foorter Transform
lnfrared
Spectrosoopy Tesl FTIRJ
Vlocoeliy
Appearance
Fluo<-.co
Funguo
ReoiSWlC
F1e>ábol4y
Flammalliüty
Dielecttlc Wl1holanding Vottage
Mol
st
ure and lnsulation
Reslstanco
Thermal Shock
Temperature
and
Humidity Aging
I n ~ condue1ed by:
~ ~ ~ ( . . . , . . . . . . . . . . , .
. . . ..br ,..,llolo M..,...IIIC
- ~ . , . . . . _ . _ . , . . , . . . . . . . . . . . . , . . , . _ ' I H I
ov.rau
Ouallllcatlon
R o ~ J l t s
I
Pooo I Fllil
lndivk t·uallnapectlon and TMt Rftuhs
Too1 Method
AABUS
ASTM D-t084
Vloual
V 1$Ual
under UV
I P C - T M ~
2.6.1.1
I P C - T M ~
2.4.5.1
UL84 HB
IPC·T
M-650
2.5.7.1
IPC·TM·650
2.6.3.4
IPC·TM·650
2.6.7.1
IPC·TM·650
2.8.11.1
P a r ~ r a p h in
IPC. C-8308
RMuttl Romoru
3.4. 1
Spectrum
to
be retalnod for
future
reference
Measurement tobe recordod
3.5. 1 for future refer
enee.
I NIA type xy)
3.52
Pass
I F
ai
l
3.5.3
I Pass
I
I NIA type xy)
I
I Fail
3.5.4
I
I Pass
I
I Fal
35 5
I
I Pass
I
I
Fal
3.5.6
IPass
I
Fal
3.6.1
IPass
I Fali
]
Pass 500
MO
minimum
3.7. 1 1Pass 5000
MO
mlnlmum
I Fali
3.7.2
IPass
I Fail
I
I Pass
3.7.3
I
I
Not
Tasted
I
I Fail
O I W I ~ ~ 1
e W I O
I E T A O I I A A S 5 ' A { 7 1 » 1 n i ~ · I I W O H E I O N C I . O U ~ 1 ~ 0 0 M M ,
HCIIIIW -.._. ....v 6 ~ 1 ·
VTC:
9
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IPCCC-8308 h
.
*' . 1
Oc1ober
2008
Appendix B Example
of
Quallflcatlon Retentlon lnspectlon Report
M
anvtacb.1....-•e
tct.ntlfJcltion:
Product
ldendfk:atlon:
Orlg1no1 Ouollflcotlon Dote:
Tut
Fourier Translo<m lnlrared
Spec1roscopy
Tesi(FTlR)
Appoarance
Fluorucence
Molsturo
onc1
lnsutalion
R nce
l n ~ i o n
Compfetion Date:
Confo
rmei Coating Type: Curo Type:
Lati OuoiKicotlon Retondon Dole:
OYeroU OU.Hflc:odon Relendon Resulto
I
Puo
I
I
Foi1
lndtvlduol lnopectlon
ond
T0.1 Resulto
TH I - hod
AABUS
Visual
Visual undor UV
I P C T ~
2.
6.3
.4
P w ~ r o p h
in
IPC C 8308
- ·
Remarka
peçtrum
10 be compared
with
that
from the original
3.4.1 qualificadon 1
es1
I
)Pass
I
IF a
i l
3.5.2
I
IPass
I
IFail
3.5.3
I
IPass
I
I NIA
1ypo
xy
[
I
Fail
I
I Pass
500
MO
minimum
3.7.1
I
I Pass 5000
MO mk murn
I
I
Fail
O ólt,.....,
020226f7
Nl1 f
l'nfl08ltA Il417001f1,oo-
1 ~ 1 0 U I I • liM()PU\1 OQI,t 811 ,
Not ~ . . . . . v
~ t iUTt
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Appendix
C Example of
Quality Conformance
lnspectlon
Report
Manufacturer•a
ldtntHication
:
lnspection Compledon 08te:
Batch
d e n U f l e ~ ~ t i o n : Product ldentlrlcetlon: Conformtt Coating Type:
cu Type:
Orlglnol Ouollfation Dote:
Laet COnfonnence lnapection Date:
•••
Vll<lollity
Appoaranoo
·
lnopoetlon cond...-..cl
by:
Lut
OUIIIflc:oUon Rotontlon Doto:
Ovonon OU.Ifty Conformonco Rooults
Pooo
1Foll
fndlvktual lnapec1ion and Test Reeutta
TeatMithod
ASTM D-1084
Visual
VISUal under
UV
P e l ~ t e p h fn
IPC C-8308 Reautta Remarka
3.5.1
I Pass I N/A typo xy)
I
Fa
li
3.5.2
IPass
I
I Fail
3.5.3
1
Pass
I N/A IYIMI
XY)
I I Fali
O f d t t ~ ~
DI 'ETAAOIAAS
.....poo111100f. IJ•SNOMUONI:t:l U ~ . . . . _ . O O M 11\.
, . , .
b - .201.. . . .V 1 .
l lC
l l
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8/9/2019 Qualification and Performance of Eletrical
http://slidepdf.com/reader/full/qualification-and-performance-of-eletrical 23/24
Standard
lmprovement
Form
The
l"'rpo5< of lhis
form
is
10
provide
tbe
Tce:hnical
Camminte
o IPC w11h mpul
from tbe i.-.lustty ,.prdioa •SI&C of
lhe
subject Slandanl.
I. I reoommend chnnges 10 lhe following:
lDchvKiu.als or companies are idvittd 10
submit comments lO LPC. AU comments
will . , . collcd<d <hspened
' tbe
oppropn.,. commmce(s).
_ Requitcmenl, pmsroph
numb<s
_TeSI
Melhod
numb<s • paragrapll numb<s___
The
refe<enced Plf liJ1IIlh
numb<s has proven 10 b<:
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IPC CC 8308
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c:an
provide inpuL pkase
complcce
1h1J
fOtm
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recum to:
IPC
3000 l..akcsidc Drive.
Sujte
309S
Bannockbutn. IL 6 I
·
I249
P•• 847615.7105
~ m a i l :
answers@ipç.org
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2. Recommcndations for
con-cction:
3.
Othc:r g g e S i i o fOt
documcnl im
prOvl me
n
t:
Submiued by:
Name
Cily/StJUe Zip
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........,
. . . . . . . . . . . . .
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Telephone
Date
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N I I I I W ~ t i A : M I I f C :
8/9/2019 Qualification and Performance of Eletrical
http://slidepdf.com/reader/full/qualification-and-performance-of-eletrical 24/24
ssociation Connecting Electronics lndustries
3000
L8kes1de
Orive.
Sui1e
309 S
Bannodburn
ll
60015
847
615·7100
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847·
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