amma paint and preparation training

7/29/2019 Amma Paint and Preparation Training

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1

BasicPaint

Inspection

for

NonPaintInspectors


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OrHowcanpaintingthat

littlespotcostsomuch!

Withno

Checkpoints!

2


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Paintingis

very

easy

if

you

dontknow

how

to

do

it!

3


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4

Objectives

General

knowledge

and

understanding

of

NAVSEA

009

32

Preparation,Cleaning,andPaintingRequirements.

Wheretofindtheserequirementsandstandards.

Howtomeettheserequirementsandstandards.

TypesofCheckpointsthat mayberequired

Knowingspecsnotonlyhelpsyoudoitright,butalsohelpsyou

applytheappropriatelevelofeffort(notdotomuch!)


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5

NAVSEAStandardItems

NAVSEAStandardItemsThestandard

specification

for

Ship

Repair

and

Alteration

Committee(SSRAC)isresponsibleforprovidingtechnicallyandcontractuallysound

standardsfor

the

US

Navys

ship

repair

and

alterationcommunity.

NAVSEAStandardItem00932isthepaint

requirementsdocument

for

contracted

work

onsurfaceshipsandsubmarines.


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Referencesin00932

NSTMChapter

631

and

634

SSPCPaintingManual,Vol.2

NACEBook

of

Standards

6


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00932 cont.

NAVSEA00932Addressespreservation,

cleaning,coating

selection,

and

application.

IdentifiedbyYearandversion(FY09CH1)

Changesthroughout

the

year,

proper

version

shouldbecalledoutinyourspecification.

NSTcenter.org Primary

site

for

Navy

paint

info.

7


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00932 cont

APatchworkquiltofinformation

63pages

long

Pages122arepainting

requirements/procedures/

QA

requirements. Pages3263are Tablesofcoatingssystems,and

requiredsurfaceprep,forvariousareasofaship,

orsub

Pages2231areNotes(modificationsor

additionalinfo)whicharereferencedinthose

tables

8


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InsertOO932Schedule

9


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10

00932#3.7CriticalCoatedAreas

Requiressignificant

additional

levels

of

QA

and

Certifications

PreservationcompanymustbeSSPCQP1certified

Painters,blastersandQAInspectorsmustbecertified

SpecificQA

forms,

COCs

and

material

CAPS

(Coatings

ApplicationsProductSummary)sheetsmustbesubmitted

Gpointsrequired


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MK41VLSlaunchertopandbase

Underwaterhullsurfaces(includingdielectricshields)

Cofferdams

Hangar ,flight,catapult,andverticalreplenishmentdecks

CVandCVNflightdecklandingareas

RASTtracktrough

Welldeckoverheads

SurfaceShipBilges

11


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12


InteriorSurfacesofintakeventplenums,definedas

combustionairintakes(gasturbine,diesel,andsteam)and

othervent

system

intake

plenums

with

openings

greater

than

7squarefeet

Uptakespaces

Tanks(includingsumpsandcovers)

Voids

All

Recesses

on

submarines InteriorSurfacesofsubmarinesailandsuperstructure

(fairwater)whenSSPCSP10accomplished

Aircraft

Launch

and

Recovery

Equipment

(ALRE)


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13

SURFACEPREPARATION

Thebestqualitypaintwillperformeffectivelyonlyif

applied

to

a

surface

which

has

been

properly

prepared.Theinitialcostofadequatesurface

preparationisjustifiedbecauseoftheincreasein

durabilityand

the

achievement

of

the

maximumcoatinglifewithminimumrepairsandrepainting.

(NSTMChapter631and634)

85%of

all

paint

failures

are

caused

by

poor

Surface

Preparation


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14

SURFACECLEANING(PREPARATION)

METHODS Thegoalofsurfacecleaning(preparation)isto

providearoughened surfacewhichisfreeofcontamination

and

gouges

or

sharp

projections.

Rougheningisnecessarytoattainthenecessary

anchorpatternforgoodpaintadhesion.Careshould

be

taken

when

using

wire

brushes

and

sanderstoavoidpolishingmetalsurfaces,

which

would

prevent

adequate

adhesion

of

subsequentcoatings.


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AnchorPattern

themeasurementoftheroughness,or

SurfaceProfile

of

asurface

after

surface

preparationiscomplete. Measuredasthe

distanceinmils(thousandthsofaninch)

fromthe

bottoms

of

the

lowest

valley,

to

the

topofthehighestpeak.

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16

SSPCSURFACEPREPARATION

DESIGNATIONS 00932utilizestheSSPCSPXStandardstospecify

therequiredlevelofSurfacePreparation

SSPC"denotes

Steel

Structures

Painting

Council.

"SP"denotesSurfacePreparation

Anobjectivestandard,withreferencedocuments(VIS

Standards)

showing

pictures

of

acceptable

levelsofsurfaceprep.

Criticalthatyouunderstandtherequirement,in

caseyour

inspector

does

not.


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Step1 SolventCleaning

Beforesurfacepreparationbeginsthesurfaceshallbefreeofoil,grease,dirt,chemicals,andwatersolublecontaminants

(i.e.chlorides),

all

of

which

may

be

removed

with

solvent

cleanersandfreshwaterrinsing.

SSPCSP1SOLVENTCLEANING SolventCleaningisamethodforremovingallvisibleoil,grease,soil,drawingandcuttingcompounds,

andother

soluble

surface

contaminants.

It

is

intended

that

solvent

cleaningbeusedpriortotheapplicationofpaintandinconjunctionwithsurfacepreparationmethodsfortheremovalofrust,millscale,orpaint.Priortosolventcleaning,removeanyheavydepositsofoil,grease,etc.,withascraper.Removeremainingoil,grease,etc.,bywiping/scrubbing

thesurface

with

rags

or

brushes

wetted

with

solvent.

It

is

important

that

thefinalwash/rinsebemadewithcleanrags/brushesandsolventsothatafilmofoil/grease,etc.,wontbeleftonthesurfacewhenthesolventevaporates.

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18

SP2HANDTOOLCLEANING.

Handtoolcleaningwillremoveonlylooseorloosely

adheringsurfacecontaminants,includingrustscale,

loosemill

scale,

loose

rust,

and

loosely

adhering

paint. Itisprimarilyrecommendedforspotcleaning

inareaswherecorrosionisnotaseriousfactor. SSPCSP2HANDTOOLCLEANING SP1mustbecompletedbefore

andafter! Removeallloosemillscale,looserustandotherdetrimentalforeignmatterwithnonpowerhandtools.UnderSSPCSP2itisnotintendedthatadherentmillscale,rust,andpaintberemovedbythis

process.Mill

scale,

rust,

and

paint

are

considered

adherent

if

they

cannot

beremovedbyliftingwithadullputtyknife. Featheredgesofallremainingadherentmaterialsothattherepainted

surfacecanhaveareasonablysmoothsurface.


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19

POWERTOOLCLEANING 3

Applicable

Standards:

SP3PowerToolCleaning,

SP11PowerToolCleaningtoBareMetal

SP15 Commercial

Grade

Power

Tool

Cleaning

Powertoolcleaningmethodswillpreparesurfacesfasterandbetterthanhandtoolmethods.

Powertool

cleaning

to

bare

metal

is

defined

as

removal

of

all

rust,

loose

millscale,andpainttobaremetalbychipping,scraping,sandingorwirebrushing.Aminimumofaonemilprofileisrequired.

Powertoolsareusedforremovingsmallamountsoftightlyadheringcontaminantsthathandtoolscannotremove;butcomparedwithblasting,

they

are

uneconomical

and

time

consuming

for

removal

of

tight

millscale,rust,oroldcoatingsfromlargeareas.


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20

TypesofPowerTools.

Chippinghammers,deckcrawlers,needleguns,andwirebrushesareusedtoremovetightcorrosion,millscale,andold

paintfrom

large

metallic

and

masonry

areas.

Wire

brushes

(cuporradial)areusedtoremoveloosemillscale,oldpaint,weldflux,slag,anddirtdeposits.Grindersandsandersareusedtosmoothexcessivelyroughsurfaces.Aswithhandtools,

care

shall

be

exercised

with

power

impact

and

grinding

toolssotheydonotcuttoodeeplyintothesurface,resultinginburrsthataredifficulttocoverandprotect

satisfactorily..(REFNSTM

CHAP

631

page

18

of

86

)


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21

SSPCSURFACEPREPARATIONDESIGNATIONS

CONT. SSPCSP3POWERTOOLCLEANING Removeallloosemillscale,looserust,

loosepaint,andotherdetrimentalforeignmatterwithpowerassistedhandtools.(SeeremainingdiscussionunderSSPCSP2HandToolCleaning).Noprofile

requirement.

SSPCNo.15CommercialGradePowerToolCleaning Acommercialgradepowertoolcleanedsteelsurface,whenviewedwithoutmagnification,shallbefreeofallvisibleoil,grease,dirt,rust,coating,oxides,millscale,corrosionproducts,and

foreignmatter.

Profile

of

1mil

required.

Close

to

SP

11,

but

staining

may

remain.

SSPCSP11 PowerToolCleaningtoBareMetal Metallicsurfacesthatarepreparedaccordingtothisspecification,whenviewedwithoutmagnification,shall

befree

of

all

visible

oil,

grease,

dirt,

dust,

mill

scale,

rust,

paint,

oxide

corrosion

products,andotherforeignmatter.Slightresiduesofrustandpaintmaybeleftinthelowerportionsofpitsiftheoriginalsurfaceispitted.Profileof1milrequired.Forcompleteinstructions,refertoSteelStructuresPaintCouncilSurfacePreparationSpecificationNo.11.


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22

BLASTINGSURFACEPREP.STANDARDS

SSPCSP5WHITEMETALBLASTCLEANING Awhitemetalblastcleanedsurfaceisfreeofallvisibleoil,grease,dirt,dust,millscale,rust,oxides,corrosionproducts,paint,andotherforeignmatter.SSPCSP5will

resultin

the

highest

performance

of

apaint

system

since

all

surface

contaminationiscompletelyremoved.

SSPCSP10NEARWHITEBLAST SameasSSPCSP5withtheexceptionthatsomestaining(5%)mayremain

SSPCSP

6COMMERCIAL

BLAST

CLEANING Same

as

SSPC

SP

5with

theexceptionthatsomestaining(33%)mayremain

SSPCSP7BRUSHOFFBLAST Abrushoffblastcleanedsurface,shallbefreeofloosemilscale,looserust,andloosepaint.Tightlyadherentsurfacematter(includingrust,millscale,andpaint)mayremain. The

entiresurface

is

to

be

blasted,

but

tightly

adherent

matter

may

remain


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23

Definitions

DisturbedSurfaces aredefinedasanysurfacethatrequirescleaningand/orpaintingduetoexistingpaintfinishbeing

damagedin

the

accomplishment

of

work

specified

by

the

statementofwork.

Theword

"new"

in

"new

and

disturbed

surfaces refers

to

all

materialinstalledontheshipbythecontractorregardlessofsource.


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24

Definitions

Touchup isdefinedwithinthisStandardItemaspreservationoperationsoncumulativesurfaceareas

lessthan

one

percent

of

the

total

area

(e.g.,

bilge,

tank,space,etc.)beingpreserved,withnoindividualareagreaterthan10squarefeet.Includedunder

touch

up

operations

are

new

and

disturbed

areas

of

lessthan

10

square

feet

Partialpreservation isdefinedaspreservationofasectionofanentirespaceorlocation.

Fullpreservation is

defined

as

preservation

of

an

entirespaceorlocation.


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25

Definitions

Feathering isusedfortransitionofapplyingafreshcoatingsystemtoanareawithanintactcoatingsystemthatisnot

removed.To

do

this,

visible

areas

of

defective

old

paint

shall

beremoveduntilanareaofcompletelyintactandadheringpaintisattainedaroundthedefectiveareabyfeathering(tapering)theedgesoftightlyadheringoldpaintatan

approximate

30

degree

slope

into

the

newly

prepared

bare

metalsurfacethuspreventingapplicationofnewpaintoverlooseorcrackedpaint.

Tacky isdefinedasthatcuring(drying)stagewhenafingertip

pressedlightly

against

the

film

leaves

only

aslight

impression

andnoneofthefilmstickstothefinger.(NSTMFY09page#8of63in00932)


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26

Definitions

Tackcoat isdefinedasalayerofpaintwithareducedfilmthickness(e.g.,12milsvice5mils);thisdoes

not

imply

that

adding

thinner

is

acceptable

(NSTMFY09page#8of63in00932)

InductionorStandinTimes(Epoxy2PartCoatings) is

definedas

that

time

immediately

following

the

mixing

togetherofcomponentsAandBduringwhichthecriticalchemicalreactionperiodofthesecomponentsisinitiated.

This

reaction

period

is

essential

to

ensure

the

complete

curing

ofthecoating.


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27

PreparingOldPaintinGoodCondition.

Oldpaintingoodconditionmay providea

goodbase

for

repainting.

When

asurface

is

to

berepaintedandtheoldpaintisnottobe

removed,thesurfaceshallberoughenedwith

anabrasive

and

cleaned

and

dried

before

new

paintisapplied.REFNSTMCHAP631page15

of86


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28

RemovingOldPaints

Intouchuppaintingforpreservation,whenonly

localized

areas

or

spots

need

attention,

removal

of

oldpaintshallgobeyondthevisiblydefectiveareas

untilanareaofcompletelyintactandadheringpaint

filmis

attained,

with

no

rust

or

blisters

underneath.

Theedgesoftightlyadherentoldpaintremaining

aroundtheareashallbetapered(feathered) toallow

properblending

and

prevent

laying

new

paint

over

looseorcrackedpaint.Aneedlegunmaybeused

afterdiscsandingtoestablishaprofileonbare

areas.REF

NSTM

CHAP

631

page

14

of

86


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29

PAINTSTORAGE

Storepaintsystemcomponentsinacool,dry

place.Do

not

expose

to

freezing

temperatures

ordirectsunlight.Monitorthestorage

temperaturesofpaintovera24hourperiod

priorto

use;

document

the

minimum

and

maximumtemperatures.Forpaintstorage

ambienttemperature

shall

be

maintained

between65and85degreesFahrenheit.


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30

PAINTAPPLICATIONREQUIREMENTS

TEMPERATURE,WIND,ANDHUMIDITYREQUIREMENTS. Itisessentialforsurfaceandsurroundingtemperaturetobe

between10

and

32C

(50

and

85F)

for

water

thinned

coatings,and2and35C(35and95F)forothercoatings,unlessthemanufacturerspecifiesotherwise.Paintshouldbeappliedonlywhensurfacesarecompletelydryandsurfacetemperature

is

at

least

2C

(5F)

above

the

dewpoint.

The

paintmaterialshouldbemaintainedatatemperatureof18to29C(65to85F).Paintisnottobeappliedwhenthe

temperature

is

expected

to

drop

to

freezing

before

the

paint

hasdried.Windvelocityshouldbelessthan15milesperhourandrelativehumiditylessthan85percent.


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31

PAINTMIXING

Paintsshallnotbeuseduntiltheyare

thoroughlymixed.

Improper

mixing

is

one

of

theprincipalreasonsforpoorpaint

performance.


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32

MixingProcedures.

Mechanicalpaintagitators(shakers)shallbe

usedwhenever

possible.

If

ashaker

is

not

available,thepaintshallbestirreduntilall

lumps,cakes,andsedimentsarecompletely

dispersed.Stirring

should

be

done

in

accordancewiththefollowingprocedure:


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33

TwoPackageProducts.

Twopackagepaintscurebychemicalreaction

ofone

component

with

the

other.

The

two

componentsshallbekeptseparateduntilthe

paintisreadyforapplication.Thetwo

packagesare

generally

designated

as

componentAandcomponentBwithone

containingthe

resin

(generally

A)

and

one

containingthecuringagent(generallyB).

Neithercomponentcanbeusedalone.Mixing

involvesthe

following

steps:


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34

StepsforMixingTwoPackagePaints

1.StirtheAandBcomponentsindividuallyto

disperseany

lumps

and

obtain

aconsistent

mixture.

2.

While

continuing

agitation

of

the

A

component,slowlyaddalloftheB

component.

3.Agitate

until

asmooth,

uniform,

consistent

mixtureisobtained.

REF:NSTM

CHAP

631

page

44

of

86


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35

NOTE

Becausetheseproductscurebychemical

reaction,it

is

slowed

or

even

stopped

at

low

temperaturesandacceleratedathigh

temperatures.Oncethechemicalcuring

proceeds,the

product

will

reach

astage

wheretheviscosity(consistency)increasesto

suchahigh

degree

that

the

product

is

no

longerapplicable.

Surface Temp and Stand in Time for


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36

SurfaceTemp.

and

Stand

in

Time

for

MILDTL24441Paints

Surface Temperature at Job Site(Degrees Fahrenheit)

Stand-In Time in Hours

35 to 502 hours at 70 degrees Fahrenheit

(paint temperature)

50 to 60 2 hours at job site temperature

60 to 70

One hour to 1-1/2 hours at job site

temperature

70 to 901/2 to one hour at job sitetemperature

REF: 009-32


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TypicalPaintProcess

Containment/Wrapuptocontroldustanddebris,and

protect

sensitive

items. CHECKPOINTContainment

CleanDegrease(SP1)

CHECKPOINTCleanliness

CHECKPOINTStorageofCoatingMaterial

SurfacePreparation(SP2,SP3,SP11,etc.)

CHECKPOINTSurface

Prep,

Surface

Profile

CHECKPOINT DustTapeTest,Conductivity

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TypicalPaintProcess,cont.

ApplyPaintSystem(2coatsystem)

Prime

CHECKPOINTVisual,

Film

Thickness

StripeCoat(weldsandedges)

CHECKPOINTVisual

TopCoat

CHECKPOINTVisual,FilmThinckness

CHECKPOINTEnvironmentals,

Continuous!

38


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39

SUMMARY

GeneralknowledgeandunderstandingofNAVSEA00932

Preparation,Cleaning,andPaintingRequirements.

SURFACECLEANING

METHODS

TYPESOFSSPCSURFACEPREPARATIONDESIGNATIONS

PAINTSTORAGE

PAINTMIXING

BASICPAINTINGPROCEDURES


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AnyQuestions

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