protective coatings offshore or coastal locations general specification

ENGINEE RING SPEC IFICA TION

PROTECTIVECOATINGSOFFSHOREOR COASTALLOCATIONS

GENERALSPECIFICATION

Specification No. 752.0Revision 37/1/86 of 12

1. SCOPE

This specification covers the requirements governing the selection and applicationof the coating system to be used on the exterior surfaces of production facilitiesincluding structural steel, piping and equipment for offshore or coastal locations.

Equipment specifications and/or drawings, when furnished, are to be used with thisspecification. If conflict exists, the equipment specifications and/or drawingsshall govern.

2. GENERAL

2.1 Reference to SSPCrefer to Steel Structures Painting Council Specifications andreferences to SA refer to Swedish Standard Institution (Specification05-50-00).

2.2 Except as noted on the purchase order, drawings, or other contract documents,the following surfa~es are not required to be coated:

2.2.1 Copper and copper alloys.

2.2.2 Austenitic stainless steel or copper-free aluminum.

2.2.3 Fiberglass, plastic or plastic-coated material inhibited againstultraviolet deterioration.

2.2.4 Instrument cases, etc. shall not be grit blasted or painted.

2.2.5 Name plates, machined surfaces, instrument glass, flanged faces, controlvalve stems and similar items.

2.3 Machined and threaded surfaces shall be protected with aremovable rust preventative or thick plastic protectors.installation, all threads which are still exposed to thecoated.

temporary readilyHowever, after

atmosphere shall be

2.4 Failure of applicator to consult with the APC representative to clarify anyitem in the specification will in no way relieve applicator of hisresponsibility for satisfactory compliance with these specifications. Approvalis required by APC for all deviations from specifications.

3. SURFACEPREPARATION

3.1 All burrs, weld splatter, indentions, and other sharp surface projections shallbe removed prior to further surface preparation. Any grinding done afterabrasive blasting shall be reblasted to obtain proper anchor pattern.

3.2 All bolt holes shall be drilled and smoothed before blast cleaning.

3.3 All gauges, name plates, code stamps, electrical wiring and fixtures, and aidsto navigation shall be protected to prevent damage during blasting and paintingor installed afterward. Where practical, electrical cable shall be installedafter blasting.

Amoco Production Company ConstrUction (Offshore)

ENGINEE RING SPECIFICA TION

PROTECTIVE COATINGSOFFSHOREOR COASTAL LOCATIONS

GENERAL SPECIFICATION

SpecificationNo. 752.0Revision 37/1/86 of 12

3.4 All oil and/or grease contaminationsother suitable means before startingother cleaning solutions or solventsabrasive blasted without reblasting.intended to prevent rusting.

AI I surraces to be coated shall be blast cleaned to "White Metal BlastCleaning" per SSPCsurface preparation specification SP-5, or SA 3, except asnoted for systems 1B, 2 and 3.

shall be removed by solvent washing orabrasive blasting. No acid washes ormay be used on metal surfaces ~ bein~

This includes any inhibitive washes

3.7

To avoid contamination, abrasive blasting shall not be done in an area wherepainting operations are being performed or where freshly coated surfaces arebeing stored.

Unless specifically approved in advance by the Company or their representative,the abrasive will be silicia sand, flint, copper slag, or metal shot, sized togive the specified anchor profile as determined by SSPC-SP-5. A mesh size willbe used as prescribed by the coating vendor for thickness of paint to beapplied. The maximumparticle size shall be no larger than that passing a16-mesh screen.

3.6

3.8 The abrasive should be discharge through a 5/16 or 3/8 inch nozzle at 100 PSIG.Wear of the orifice by more than 1/16" from nominal shall be cause forrejection.

3.9 The target anchor pattern is 1.0-2.5 mils unless otherwise specified by thepaint manufacturer. Verification of this by tapes, gauges, etc., shall not berequired if the conditions of 3.4-3.8 have been satisfied.

3.10 The use of centrifugal wheels to propel the abrasive will be acceptable if ananchor pattern with minimumof 1.0 mil and a maximumof 2.5 mils ;s beingproduced. Blast materials containing impurities or inclusions will not beallowed in any case.

3.11 If blasting is allowed by the APCrepresentative during the night, or beforegetting wet, the surfaces shall be swept clean later to a "white" metal surfacewith fresh, light blasting during daylight on a dry surface.

3.12 The blast-cleaned surface shall be coated with primer within eight hours andalso before any rusting occurs. To better determine where blasting stopped, aminimumof four inches around edges of abrasive blasted areas will be leftunprimed unless adjoining a coated surface. Blasting shall continue a minimumof one-inch into adjoining coated surface to prepare the transition zone. Anysteel that is not primed or is wet by rain or moisture shall be reblasted ifany rust develops.

3.13 Dry blast cleaning operations shall not be conducted on surfaces that will bewet after blasting and before painting. If relative humidity is greater than90 percent, permission to blast shall be obtained from APC representative.

3.14 Extreme care shall be exercised to prevent damage when blasting nearnameplates, machined surfaces and factory-coated items. These surfaces shallbe adequately protected.

Amoco Production Company Construction (Offshore)

ENGINEERING SPECIFICA TION




4. MIXING, THINNING, AND STORAGE

4.1 Paint must be kept in fully enclosed storage at temperatures greater than 40°F.

4.2 All containers of coating material shall remain unopened until required foruse. Only enough containers shall be ocened that will be used during one dayAny coa~lng ma~erlal remainlng ln a container which was opened more than 24hours earlier, will not be used.

4.3 Coating materials which have jelled or otherwise deteriorated during storageshall not be used.

4.4 All ingredients in any container shall be thoroughly mixed before use to asmooth and uniform consistency.

4.5 Coating material mixed in the original container shall not be transferred untilall settled pigment is incorporated in the vehicle. This does not imply thatpart of the vehicle may not be poured off temporarily to simplify the mixing.

4.6 Coating material shall not be mixed or kept in suspension by using a bubblingair stream.

4.7 Where a skin has formed in the container, the skin shall be cut loose anddiscarded. If such skins are sufficiently thick to have a practical effect onthe composition and quality, the paint shall not be used.

4.8 All pigmented material shall be strained after mixing except where applicationequipment is provided with adequate strainers. Strainers shall be capable ofpassing the pigment and removing any skin.

4.9 Material which does not have a limited pot life, or does not deteriorate onstanding, may be power mixed any time before using. Material shall not remainin spray pots or buckets overnight but shall be gathered into a closedcontainer, not larger than 5 gallon size, and remixed before use.

4.10 No thinner shall be added unless necessary for proper application. Thinningshall not exceed limitations established by manufacturer.

4.11 Type of thinner shall comply with manufacturer's instruction.

4.12 When use of thinner is permissible, it shall be added during the mixingprocess. Painters shall not add thinner after paint has been thinned to theproper consistency. All thinning shall be done under supervision of oneacquainted with the correct amount and type to be added.

5. COATINGPROCEDURE

5.1 The type, brand, number of coats, cOlor, and thickness shall be per Para. 7 oran equivalent approved by APCprior to application. The applicator iscautioned to consider the volume of paint consumed in filling the anchorpattern among the paint losses. which can occur.


spec1fication. In case of conflict, the more stringent instructions shal I

govern.

5.4 In the absence of specific recommendations herein, coatings shall be appliedper SSPCSpecification PA1 and PS 12.

5.5 Application

5.5.1 Surfaces shall not be coated in rain, wind, snow, fog, mist or in areaswhere injurious airborne elements exist.

5.5.2 Ideally, the coatings in this specification assume an applicationtemperature range between 50°F - 100°F and a relative humidity of 50%90% (up to 85% maximumhumidity for urethane). The steel surfacetemperature shall be a minimum of 5°F above the dewpoint. Forapplication outside of this range, the paint manufacturer should givewritten approval and state any modifications to application proceduresto accommodate those conditions.

5.5.3 Blast cleaned surfaces shall be coated with one complete application ofprimer as soon as practicable but in no case later than eight hoursafter abrasive blasting.

5.5.4 To the maximumextent practicable, each coat of material shall beapplied as a continuous film of uniform thickness free of pores. Anythin areas shall be re-coated and permitted to dry before the next coatis applied, or in accordance withmanufacturer1s recommendation.

5.5.5 Each coat shall be in a proper state of cure or dryness before theapplication of the succeeding coat. Material shall be considered dryfor re-coating when an additional coat can be applied without thedevelopment of any detrimental film irregularities, such as lifting orloss of adhesion of the undercoat.

5.5.6 Alternative coats shall be tinted sufficiently to produce enoughcontrast to indicate complete coverage of the surface. The tintingmaterial must not be detrimental to the service life of the paint.

5.5.7 Brush application of paint shall be in accordance with the following:

a) Brushes shall be of a style and quality that will enable properapplication of paint. Round or oval brushes are most suitable forrivets, bolts, irregular surfaces, and rough or pitted steel.Wide, flat brushes are suitable for large flat areas, but theyshall not have a width over five inches.

b) The brushing shall be done so that a smooth coat as nearly uniformin thickness as possible is obtained.


. ENGINEERING SPECIFICAnONSpecification No. 752.0

T'" PROTECTIVECOATINGS Revision 3AMOCO OFFSHOREOR COASTALLOCATIONS 7/1/86

11iP" GENERALSPECIFICATION of 12

ENGINEERING SPECIFICATION




Paint shall be worked into all corners.

Any runs or sags shall be brushed out.

There shall be a minimum of brush marks in the coat of appliedoaint

Successive coats of paint shall be applied by cross hatching theprevious coat.

Surfaces not accessible to brushes shall be painted by spray,daubers, or sheep-skin.

spray application shall be in accordance with the following:

The equipment used shall be suitable for the intended purpose,shall be capable of properly atomizing the paint to be applied, andshall be equipped with suitable pressure regulators and guages.The air caps, nozzles, and needles shall be those recommended bythe manufacturer of the equipment for the material being sprayed.The equipment shall be kept in satisfactory condition to permitproper paint application.

b) Traps or separators shall be provided to remove oil and condensedwater from the air. These traps or separators must be of adequatesize and the drain valve must be opened slightly to permitcontinuous draining of condensate during operations. The air fromthe spray gun impinging against the surface shall show no condensedwater or oil.

c) To prevent segregation of pigments, and particularly zinc richcoatings, ingredients shall be kept properly mixed in the spraypots or containers during application by continuous mechanicalagitation.

d) The pressure on the material in the pot and of the air at the gunshall be adjusted for optimum spraying effectiveness. The pressureon the material in the pot shall be adjusted when necessary forchanges in elevation of the gun above the pot. The atomizing airpressure at the gun shall be high enough to properly atomize thepaint but not so high as to cause excessive fogging of paint,excessive evaporation of solvent, or loss by over spray.

e) Spray equipment shall be kept sufficiently clean so that dirt,dried paint, and other foreign materials are not deposited in thepaint film. Any solvents left in the equipment shall be completelyremoved before applying paint to the surface being painted.Equipment shall be purged with thinner compatible with product tobe sprayed.

f) Paint shall be applied in a uniform layer, with 50% overlapping atthe edge of the spray pattern. The spray pattern shall be adjustedso that the paint is deposited uniformly. During application, the


./TAMOCO

L

c)

d)

e)

f)

g)

5.5.8 Air

a)

ENGINEE RING SPECIFICA TION




gun shall be held perpendicular to the surface and at a distance asrecommended by the paint manufacturer which will ensure that a wet

I

.layer of paint is deposited on the surface. The trigger of the gun nshould be released at the end of each stroke and restarted onlyafter forward motion of the gun has started.

M~~ ~uns sags snal I ce crusned out immediately or the paint shallbe removed and the surface repainted.

h) Areas inaccessible to the spray gun shall be painted per 5.5.7.

5.5.9 All nameplates, manufacturer1s identification tags, machined surfaces,instrument glass, finished flange faces, control valve stems and similaritems shall be cleaned and restored to its original condition.

5.5.10 SSPC specification PA1 contains details of striping of edges, corners,crevices, rivets, bolts and welds. These instructions are mandatory tothis specification. The alternate offered in the appendix of fullprimer coating first with the stripe coat following is preferred.Drying to the touch is acceptable between the primer coats.

5.5.11 Contact surfaces of all components (bottom of skids, mounting surfacesof equipment, pipe supports, brackets, bolt holes, etc.) are included inthe scope of work to receive a minimum of the primer coat prior toassembly.

5.5.12 Wet paint shall be protected against contamination from dust or otherforeign matter.

5.6 Drying of Coated Surfaces

5.6.1 No paint shall be force dried under conditions which will causechecking, wrinkling, blistering, formation of pores, or detrimentallyaffect the condition of the paint.

5.6.2 No drier shall be added to a paint on the jOb unless specifically calledfor in the manufacturer's specification for the paint.

5.6.3 Paint shall be protected from rain, condensation, contamination, snowand freezing to the fullest extent practicable until cured.

5.7 Repair of Damaged Paint Surfaces

Where shop paint has been damagedin handling, all damagedand loosely adheringpaint shall be removed and the surface thoroughly cleaned by blasting whereverpossible or by power tools if the conditions do not permit blasting. Edges ofthe breaks shall be feathered, and the designated number of prime and finishcoats applied. The paint manufacturer should be contacted for his recommendedZinc rich primer to use for repair. Not all zinc coatings are suitable forovercoating themselves.

Amoco Production Company Constnlction (Offshore)

ENGINEERING SPECIFICATION




6. INSPECTION

6.1 All work and materials applied under this specification are subject toinspection by an APC representative. Random access to all parts of the work

shali De provided for that inspector.

o.~ ',ne con~ractor or nlS representative is required to meet this specification,except where APC specifically grants waivers, regardless whether an APCrepresentative is assigned.

6.3 The completed coating shall be inspected by the fabricator's inspector orCompany1s representative for runs, overspray, and roughness. If these or anyother evidence of improper application are found, repair or recoating shall berequired in accordance with the manufacturer's recommendations at contractor'sexpense.

7. COATINGSYSTEMS

7.1 SYSTEMLA AND 18

7.1.1 For EXTERIOR SURFACESof vessels, piping, structural, pumps,compressors, etc. with maximumoperating temperatures of 200°F.

7.1.2 Type: Inorganic zinc with epoxy and polyurethane topcoats.

7.1.3 Paint designation and dry film thickness (d.f.t.) for systems lA & 18are listed below. System LA is the preferred method. System 18 islisted only for areas that cannot be sandblasted. The coatingmanufacturer shall be consulted and his recommended applicationprocedure shall be followed.

System LA

Generic Description and Dry Film Thickness (d.f.t.):

Coat #3

Polyurethane

37 microns(1-1/2 mil)min. d.f.t.

:011 Maximumthickness shall generally aim at the limits set by the coatingmanufacturer, but shall not be rejected except for defects such as"mud-cracking", sags, drips, or other objectionable defects as discussedabove. The min. d.f.t. as measured by the Mikotest guage includesapproximatelyhalf the anchor pattern.


Coat #1 Coat #2

Inorganic High BuildZinc Epoxy

75 microns 250 microns

(3 mils) (10 mi 15)mi n. d. f. t. :011 min. d. f. t.

:011:011

ca~ ~', ~ur.ace5~: ~e pa~~ted, ~r.1C~ canno~ Oe acraSlve Dlastea, removeall oil film, dirt, scale or flaking paint. Feather out edgespreferably using solvent and power disc circular sander with 1.5 gritType E paper. Power brushing can be used, however, care must be takennot to burnish the metal surface as paint will not then adhere. Aftersurface preparation is complete, apply the system lA to the specifiedthickness. Application by means of brush or spray is acceptable usingprocedures as previously outlined.

7.1.4 Colors for Coating Systems lA & 18 (final coat): Orange (Internationalor ~afety) for structural steel. ANSI No.61 Gray (English or Aluminum)for equipment.

7.1.5 The following vendors products are approved for use in coating SystemslA & lB.

Ameron Corp. Dimetcote 6Amercote No. 383 HS EpoxyAmercote No. 450 Urethane

Devoe CoatingsDiv. of GrowGroup

Catha-Cote 302Devran 230Devthane 239

Hempel Marine Paints

International Paint Co.

Galvosil 1570Hempadur 4520Hempathane 5512

Zinc Galv 6AR580-2059 Epoxy HBAR407-199 Polyurethane

Durazinc No. 555Imperial No. 1201Imperial No. 1001

Inter-zinc QHA027/028Integard EM, EX, & TH SeriesInterthane PA & PC Series

I.C.I. Chemicals Co.

Imperial Coatings Co.

Jotun-Baltimore Copper Resist HBPengard Undercoat HBFutura II

Sigma Coatings Tornusil MC-711Colturiet EHB300-7434Sigmadur AC-7523

Amoco Production Company Constnlction (Offshore)

rENGINEERING SPECIFICA TION

I

i . Specification No. 752.0y PROTECTIVECOATINGS Revision 3 I

(AMOCO OFFSHOREOR COASTALLOCATIONS 7/1/86 I., GENERALSPECIFICATION of 12

** More than one coat or a thin tie-coat, "mist-coat", or sealer of epoxymay be recommended by the paint. manufacturer. This advice is to befo 11owed.

System 1B I

are to be contacted for specific guidance on the cure times and otherapplication information.

Byco-MSCCoatingsContact: Ms. Wanda Wirstrom(713) 784-5704

Zinc Gard 101FDHB Epoxy 300Durathane 902

Devoe Marine PaintsContact: Mr. Rod Altman(713) 999-4188Mr. Ron Hayden(414) 64~-8359

Cathacote 302Devran 234 QC(235 in Gulf of Mexico Area)Devthane 239

Hempel CoatingsContact: Mr. David Leggett(713) 674-3092

Galvasil 1578Hempadur 4523 or 4563Hempathane 5528

Interzinc 22 FDIntertuf Epoxy KHASeriesInterthane Finish PC Series

International Paint Co.Contact: Mr.Ferd Switzer(504) 943-8871

Sigma CoatingsContact: Dr. Max Winkler(504) 347-4321

Inorganic Zinc No. 7552Polyamide Epoxy no. 7434Ure~hane No. 7523

Sunbelt #321Sunbelt #75Sunbelt #900

Sunbelt Coating Co.Contact: Mr. Rich Rawle(800) 647-1650

7.2 COATINGSYSTEMNO. 2

7.2.1 For EXTERIOR SURFACESof all steel ladders, grating, ladder cages,platforms, stairways and handrails.

7.2.2 Type: Hot-dipped galvanized

7.2.3 Structural steel galvanized coating shall be per ASTMSpecificationA-123, latest edition, except minimum zinc coating weight shall not beless than 2.0 ounces per square foot.

7.2.4 Pipe galvanized coatings shall be per ASTM A-120 or as specified abovefor structural steel.

7.2.5 All cutting, shaping, and welding shall be done before galvanizing.

7.2.6 Any areas damaged in handling and assembly welding shall be cleaned andcoated with Galvo-Weld or approved equivalent in accordance withmanufacturer's instructions.


. ENGINEE RING SPECIFICATIONSpecificationNo. 752.0

T PROTECTIVECOATINGS Revision 3AMOCO OFFSHOREOR COASTALLOCATIONS 7/1/86""I GENERALSPECIFICATION of 12

wOATINGSYSTEM NO. ~

~~~ NON-INSULATE~cX7ERIOR5URFACES,ZOOoF ~o 7S0or. ~urTace ~o De Dlas~cleaned to linear white metalll per SSPC-SP-IG:" Blasted surface to be coatedwith one coat having a dry film thickness of 2-3 mils of a coating from theCoat No. 1 list, below. Apply a topcoat having 1.0 mil dry film thickness ofCoat No. 2, below, (aluminum or gray) over the corresponding vendor's firstcoat. .

The initial startup operation of equipment protected with System No. 3 shouldbe carried out at a controlled rate of increase in temperature not to exceed100°F/hour in order to provide a final cure and to avoid damage to the paint.

Coat No. 1 Coat No. 2

Ameron Oimetcote 6 Ameron Heat ResistantSilicone Aluminum

International Interzinc QHA027/028 International InterbondHTA200

Sigma Tornusil MC Sigma Arosta HA7563

Hempel 5372 AluminumHempel Galvosil 1570


For SPLASH ZONES of offshore structures and elsewhere as specified in purchaseorder drawings, or other contract documents.

7.4.1 Surface preparation shall generally follow the requirements of thisspecification, except the anchor pattern shall be 3-6 mils deep. Theselection of abrasive size and type must be chosen as appropriate toproduce this profile.

7.4.2 Glass flake epoxy shall be applied without a separate primer coatdirectly to the freshly cleaned steel to 50 mils (1250 microns) min.d.f.t. of International Paint Co. Intershield EPA 491/EPA 489 or APCapproved equivalent. Two or more coats will be required.

7.4.3 A single coat of a urethane from the list in Section 7.1.5 of thisspecification shall be used as a gloss/color coat. The thickness shallbe a minimum of 1.5 mils (37 microns) d.f.t. and shall be the sameproduct as used in any adjoining areas of coating System No. 1.

7.4.4 Care must be taken to apply this coating system using the instruction ofthe paint manufacturers' representatives.


ENGINEERING SPECIFICA TIONSpecification o. 752.0

,..-.ya: PROTECTIVECOATINGS Revision 3

(AMOCOOFFSHOREOR COASTALLOCATIONS 7/1/86

I GENERALSPECIFICATION of 12

7.2.7 Galvanized surfaces shall not be painted except as required by 7.2.6.

7.2.8 Machined faces of pipe flanges shall not be galvanized.

.., ,..

ENGINEERING SPECiFICATION




7.4.4.1 The Innershield glass flake epoxy has a maximumovercoatingtime of 72 hours to avoid inter-coat adhesion problems. Asweep blast or other treatments may be required if this limitis exceeded.

7.4.4.2 If not orocerly aCDlied the Innershield glass flake ecoxv has ~tendency to spray in a globular manner giving a very rough,beaded appearance. This is not acceptable, however a variationof a few mils in thickness in a smoothly blended contour isexpected and acceptable.


NON-SKIDCOATINGis to be applied to smooth, non-check plate in traffic areas,helideck landing pads, and other areas where designated on the drawings.Surface preparation and application shall be as follows:

7.5.1 The general requirements of the surface preparation section of thisspecification are applicable to this system.

7.5.2 The first two coats of the Coating System No. 1 are to be applied asbase coats for corrosion protection. The general requirements of thepaint application section of this specification also apply, except thecolor requirements are waived.

7.5.3 A coat of non-skid paint, from the same manufactures as the sub-coats,shall be applied over the coating described in 7.5.2 when the sub-coatshave reached recoat time. If the maximumrecoat time of the paintmanufacturer has been exceeded, it will be necessary to sweep blast thepainted surface prior to applying the non-skid coat.

7.5.4 The approved non-skid coating materials shall have an epoxy polyamidetype binder meeting MIL-D-23003AType Ill. The following are approvedproducts:

American Abrasive Metals Co.460 Coit StreetIrvington, N.J. 07111(201) 373-7060

Epoxo Non-Skid

APS, I nc.ra. Box325Houma. LA 70360Contact: Travis McKensie1-800-628-5527

APS 300 Epoxy Non-Skid

Amoco Production Company ConstnJction (Offshore)

REM/damSPEC261

act.: Rod A(713) 999-4188qor. ~ayder.(414) 646-8359

Palmer International, Inc.% Houma Land and Offshore-Co.500 Thompson Road -Houma, LA 70363Contact: Atecia Cheramie(504) 443-5909

Duradek

7.5.5 lhe coating components shall be thoroughly mixed and induction time, asprescribed by the material supplier, allowed for the reaction to startbetween constituents before applying the coating.

7.5.6 The type of roller, pressure, and amount of working of the material areall relevant to the roughness of the texture. The supplier should beconsulted as special techniques and equipment are usually involved.

7.5.7 A typical peak to valley difference of 30-50 mils is expected using aspreading rate of approximately 50 square feet per gallon based on 100%by volume solids. The coverage shall be reduced proportionately for alower percent solids. For example. a 60%volumesolids product wouldspread at approximately 30 square feet per gallon.

Amoco Production Company ConstnJction (Offshore)

ENGINEERING SPEC IFICA TIONSpecification No. 752.0

. ;;Ooi(? PROTECTIVECOATINGS Revision 3(AMOCO OFFSHOREOR COASTALLOCATIONS 7/1/86'IP GENERALSPECIFICATION of 12

o Marine_Coatings Co. Devran 237 HR

protective coatings offshore or coastal locations general specification

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