09-SAMSS-069

Materials Syste Syst em Specif pecific ica ati tion on 09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service Paints and Coatings Standards Committee Members

31 October, 2004

 Barouky, F.F., F.F., Chairman  Hammad, B.S., Vice Chairman Chairman  Al-Homayed, M.A.  Al-Khashram, M.S.  Al-Nujaim, S.A.  Al-Seba, Z.A. Z.A. Suller, A.A.

Saudi Saudi Aramco Aramc o Desk DeskTop Top Standards Standards Table of Contents

1 2 3 4 5 6

Scope..................... Scope................................... ............................ ..................…..... ....…..... 2 Conflicts and Deviations.............. Deviations.... ..................... .............….. ..….. 2 References............ References.......................... ............................ .................…...... ...…...... 3 General Requirements.............. Requirements.. ...................... ...........…....... .…....... 4 Qualification Tests and Requirements...…..... Requirements.. .…..... 5 Method of Packaging.............. Packaging.... ..................... ..................... .......... 10

Previous Issue: 28 February, February, 1999 Next Planned Update: 1 November, November, 2007 Revised paragraphs are indicated in the right margin

Page 1 of 10

Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

1

09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

Scope This Specification defines the minimum mandatory requirements for qualifying individual coating products for use in Saudi Aramco's approved protective coating systems APCS-1A through APCS-1F. It shall be used when any of the following situations occur: 1.1

Initial Product Approval This specification shall be given to coating manufacturers, or other vendors of coating products, that wish to obtain initial approval for products that have not  previously been qualified in accordance with this specification.

1.2

Purchase Requisitions/Purchase Orders This specification shall be attached to Purchase Requisitions or Purchase Orders when those documents address the procurement of coating products that have not been previously qualified in accordance with this specification. This specification does not apply and should not be included with Purchase orders or requisitions for coating products that have been previously qualified  per this specification. This specification should also not be included with  purchase orders or requisitions for coated items or equipment when a Saudi Aramco approved protective coating system has been specified.

1.3

Periodic Product Compliance Checks This specification may be used for periodic product compliance checks on  previously approved coatings. It shall be given to the organization conducting the compliance tests.

2

Conflict s and Deviations 2.1

Any conflicts between this specification and other applicable Saudi Aramaco Materials System Specifications (SAMSSs), Engineering Standards (SAESs), Standard Drawings (SASDs), or industry standards, codes, and forms shall be resolved in writing by the Company or Buyer Representative through the Manager, Consulting Services Department, of Saudi Aramco, Dhahran.

2.2

Direct all requests to deviate from this specification in writing to the Company or Buyer Representative, who shall follow internal company procedure SAEP-302 and forward such requests to the Mangaer, Consulting Services Department, of Saudi Aramco, Dhahran.

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

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09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

References Material or equipment supplied to this specification shall comply with the latest edition of the references listed below unless otherwise noted: 3.1

Saudi Aramco References Saudi Aramco Engineering Procedure SAEP-302

Instructions for Obtaining a Waiver of a  Mandatory Saudi Aramco Engineering  Requirement

Saudi Aramco Materials System Specifications 09-SAMSS-060

Packaging Requirements for Coatings

09-SAMSS-071

Inorganic Zinc Primer

Saudi Aramco Engineering Standards

3.2

SAES-H-101 APCS-1A

Epoxy Coating System for Atmospheric Service (with Inorganic Zinc Primer)

SAES-H-101 APCS-1B

Epoxy Coating System for Atmospheric Service (with Epoxy Primer)

SAES-H-101 APCS-1C

Epoxy Coating System for Atmospheric Service (with Zinc-rich Epoxy Primer)

SAES-H-101 APCS-1D

Epoxy/Polyurethane Coating System for  Atmospheric Services (with Inorganic Zinc Primer)

SAES-H-101 APCS-1E

Epoxy/Polyurethane Coating System for  Atmospheric Service (with Epoxy Primer)

SAES-H-101 APCS-1F

Epoxy/Polyurethane Coating System for  Atmospheric Service (with Zinc-Rich Epoxy Primer)

Industry Codes and Standards American Society for Testing and Materials  ASTM A36

Structural Steel

 ASTM B117

Salt Spray (Fog) Testing

 ASTM D16

Definition of Terms Relating to Paints, Varnishes,  Lacquers and Related Products

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

 ASTM D523

Specular Gloss

 ASTM D610

Evaluating Degree of Rusting on Painted Steel Surfaces

 ASTM D660

Evaluating Degree of Checking of Exterior Paints

 ASTM D661

Evaluating Degree of Cracking of Exterior Paints

 ASTM D714

Evaluating Degree of Blistering of Paints

 ASTM D822

Operating Light-and-Water Exposure Apparatus (Carbon-Arc Type) for Testing Paint, Varnish,  Lacquer, and Related Products

 ASTM D1640

Drying, Curing or Film Formation of Organic Coatings at Room Temperature

 ASTM D1654

Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive  Environments

 ASTM D1849

Package Stability of Paint

 ASTM D2805

Hiding Power of Paints

 ASTM G26

Operating Light-Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of  Nonmetallic Materials

The Society for Protective Coatings SSPC-PA2

Measurement of Dry Paint Thickness with  Magnetic Gages

SSPC-Paint 20

Zinc-rich Primers (Type II, Organic)

SSPC-Paint 22

Epoxy-Polyamide Paints (Primer, Intermediate, and Topcoat) dated November 1, 1982

SSPC-Vis 1

Pictorial Surface Preparation Standards for Painting Steel Surfaces

Swedish Standard SIS 055900-Pictorial Surface Preparation Standard for Painting Steel Structures: Sa 2-1/2

4

Very Thorough Blast Cleaning

General Requi rements 4.1

For purposes of this specification, the Buyer's Representative shall be the Responsible Standardization Agency Representative (RSA).

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

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09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

4.2

In order to qualify a coating system as acceptable under this specification, the coating supplier shall submit a certified test report documenting that the  proposed coating system meets the qualification tests and requirements of this SAMSS. Preparation and testing shall be performed and/or witnessed by an independent laboratory or inspection agency. This report shall be submitted to the Saudi Aramco RSA for review. The RSA shall decide if the data presented  by the Supplier satisfies all the requirements.

4.3

All initial product qualification tests shall be carried out at no cost to Saudi Aramco.

Qualifi cation Tests and Requirements 5.1

Tests Applicable to Specific Generic Types of Coatings 5.1.1

Epoxy coatings (except zinc-rich primers) supplied in accordance with this Specification shall meet the requirements of SSPC-Paint 22 except as modified below: a)

Paragraphs 2.2, 2.3 and 2.4: Should read "percent by weight," not "percent by volume."

 b)

Paragraph 4.3, Composition: Base component of topcoats need not contain anti-corrosion pigments.

c)

Paragraph 5.5, Pot Life: Shall be replaced by paragraph 5.2.3 of this Specification.

d)

Paragraph 5.7, Test Panels: Shall be replaced by paragraph 5.3 of this Specification.

e)

Paragraph 5.8, Elcometer Adhesion Test: Shall be replaced by  paragraph 5.4.2 of this Specification.

f)

Paragraph 5.9, Salt Spray Resistance: Shall be replaced by  paragraph 5.4.1 of this Specification.

g)

Paragraph 6, Labeling: Shall be replaced by section 6 of this Specification.

h)

Paragraphs 7 (Inspection) and 8 (Safety): Delete requirements.

5.1.2

Zinc-rich epoxy primers for APCS-1C and APCS-1F, in addition to meeting the requirements of Section 5.2, shall meet the requirements of  paragraphs 1, 2, 3, and 4 of SSPC-Paint 20 (Type II, Organic). The vehicle shall be a catalyzed epoxy

5.1.3

Inorganic zinc silicate primers for APCS-1A and APCS-1D shall meet the requirements of 09-SAMSS-071. Page 5 of 10

Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

5.1.4

5.2

09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

Urethane coatings supplied in accordance with this Specification shall be Type V Polyol-cured Aliphatic as defined in ASTM D16. a)

Specular gloss of the urethane coatings, when tested at a 60 degrees angle in accordance with ASTM D523, shall be at least 85.

 b)

When tested in accordance with ASTM D2805, the minimum contrast ratio of the polyurethane coating shall be 0.94 except for red colors which shall be 0.88 minimum.

Physical Property Tests Applicable to All APCSs 5.2.1

Package Stability of Paint When stored at 52 ± 1ºC for 6 months in accordance with ASTM D1849, the sample shall meet the following requirements:

5.2.2

a)

Weight loss – 0.

 b)

Skinning, pressure and corrosion – 10.

c)

Settling - 6 or better.

d)

Grains, lumps, or streaks - 8 or better.

Spray Properties The ready mixed paint shall be easily applied to a vertical surface at the following dry film thicknesses with no tendency to orange peel, sag, creep or run: Inorganic zinc (APCS-1A and APCS-1D)

:

See 09-SAMSS-071

Zinc-rich epoxy primers (APCS-1C and APCS-1F)

:

75 micrometers (3 mils)

Epoxy primers (APCS-1B and APCS-1E):

:

100 micrometers(4 mils)

Epoxy topcoats (All APCSs)

:

150 micrometers (6 mils)

Polyurethane (APCS-1D, APCS-1E and APCS-1F)

:

65 micrometers (2.5 mils

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

5.2.3

09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

Usable Potlife At 40°C, the viscosity of the ready-mixed paint shall remain within the range recommended by the manufacturer for sprayability without additional thinning for not less than 1 hour.

5.2.4

Drying Times When tested in accordance with ASTM D1640, the Dry-Through (or Dry-To-Handle) Time shall be 8 hours or less (2 hours or less for the zinc-rich epoxy primers) and the Dry-To-Recoat Time shall be in accordance with suppliers published data sheets.

5.3

Test Panel Preparation 5.3.1

Test panels shall be ASTM A36 hot-rolled steel approximately 100 mm X 150 mm. Prior to preparing the surface, the condition of the test panel shall be equivalent to SSPC-Guide to Vis 1 Rust Grade A, Adherent Mill Scale. The minimum thickness of the test panel shall be 5 mm.

5.3.2

The test panel shall be abrasive blast cleaned to near white metal (SP-10 or Sa 2-½).

5.3.3

Profile of blasted surface shall be as follows: 40-65 micrometers (1.5 - 2.5 mils) for APCS-1A, APCS-1B, APCS-1D, and APCS-1E 25-40 micrometers (1.0 - 1.5 mils) for APCS-1C and APCS-1F. The profile shall be determined with replica tap e.

5.3.4

Coatings shall be mixed, applied and cured in accordance with the Vendor's recommendations. The temperature of the test panel shall be 63 ± 2ºC during coatings application. Dry film thickness shall be measured and recorded in accordance with SSPC-PA2 and shall meet the requirements in Table 1.

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

Table 1 - Dry Film Thickness (DFT) Requirements

 APCS

Primer (1 coat) DFT in Micrometers Min-Max

Intermediate Coat (1 or more coats) DFT in Micrometers Min-Max

Topcoat (2 or more coats) Max. DFT in Micrometers

Total Topcoat (1 coat) DFT in Micrometers Min-Max

System(Min 3 coats) DFT in Micrometers Min -Max

 APCS-1A

65 - 100

N/A

150

N/A

275 - 400

 APCS-1B

50 - 100

N/A

150

N/A

275 - 400

 APCS-1C

40 – 75

N/A

150

N/A

250 - 375

 APCS-1D

65 - 100

100 - 150

N/A

25 - 65

190 - 315

 APCS-1E

50 - 100

100 - 150

N/A

25 - 65

175 - 315

 APCS-1F

40 – 75

125 - 175

N/A

25 - 65

175 - 290

5.4

Performance Tests 5.4.1

Weather-o-Meter and Salt Fog Performance Tests Each panel shall be scribed in accordance with ASTM D1654 and exposed alternately in a Weather-o-Meter in accordance with ASTM D822, Procedure B, or ASTM G26, Method B, and a salt fog cabinet in accordance with ASTM B117. Panels shall be rotated every 100 hours until a total of 500 hours in each device has been achieved. At the conclusion of the test, each coating will be evaluated for and meet the criteria in Table 2. Table 2 Standard

Acceptable Rating

 ASTM D714 Evaluating Degree of Blistering of Paints

No blisters

 ASTM D660 Evaluating Degree of Checking of Exterior Paints

No checking

 ASTM D661 Evaluating Degree of Cracking of Exterior Paints

No cracking

 ASTM D610 Evaluating Degree of Rusting on Painted Steel Surfaces System

9 or better for APCS-1B and APCS-1E. 10 for APCS-1A, APCS-1C, APCS-1D, and APCS-1F.

 ASTM D1654 Standard Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

Rating of Failure at Scribe shall not exceed: 9 for APCS-1B and APCS-1E. 10 for APCS-1A, APCS-1C, APCS-1D, and APCS-1F.

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

N/A Erosion

No more than 10% of the total average thickness has been removed.

 ASTM D 523 Specular Gloss (Polyurethane Coatings Only)

5.4.2

The reduction in gloss of the tested sample shall not exceed 20% compared to an untested sample.

Adhesion Test a)

Test panels shall be prepared in accordance with paragraph 5.3 except that the coatings shall be cured as shown in Table 3. Table 3 Coating

 b)

5.4.3

Drying Time at 25 ± 1ºC

Inorganic zinc primer

14 days

Zinc rich primer

24 hours

Epoxy primer

72 hours

Epoxy intermediate coat

72 hours

Epoxy topcoat

5 days

Polyurethane topcoat

5 days

Determine the adhesion of the prime coat to the substrate, intercoat adhesion, or cohesion of any coat of the painting system  by using an adhesion tester, 450 kg capacity. Lightly sand the coated surface and aluminum dolly and apply an epoxy adhesive. Allow the adhesive to cure as directed by adhesive supplier. Scribe the coating and adhesive around the dolly prior to testing. Make a minimum of three trials and report the average. The average shall be at least 2750 kPa (400 psi).

Maximum Service Temperature The maximum service temperatures of the coating systems shall be as follows: •

For APCS-1A, APCS-1B, and APCS-1C: 150ºC

•

For APCS-1D, APCS-1E, and APCS-1F: 80ºC

To verify compliance with these requirements, conduc t adhesion tests on coated panels that have been prepared in accordance with paragraph 5.4.2 and then exposed in an oven for 14 days at the appropriate temperature listed above. The adhesion shall be at least 90% of that obtained on samples prepared and tested in accordance with paragraph 5.4.2 but not subsequently exposed in an oven.

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Document Responsibility: Paints and Coatings Issue Date: 31 October, 2004  Next Planned Update: 1 November, 2007

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09-SAMSS-069 Qualification Requirements for Epoxy Coatings for Atmospheric Service

Method of Packaging Coatings shall be packaged in accordance with 09-SAMSS-060.

31 October, 2004

Revision Summary Revised the "Next Planned Update". Reaffirmed the contents of the document and reissued with no other changes.

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