09-SAMSS-087

Materials System Specification 09-SAMSS-087 27 March 2012 Qualification Requirements for Epoxy Coatings for Application on Damp Steel Surfaces Document Responsibility: Responsibility: Paints and Coatings Standards Committee

Saudi Aramco DeskTop Standards Table of Contents

1

Scope.......................... Scope......................................... ..........................…... ...........…...... ... 2

2

Conflicts and Deviations.........................… Deviations.........................….... .... 2

3

..............................…........ ...…........ 3 References........... ...........................

4

General Requirements......................... Requirements...............................…. ......…. 4

5

Qualification Tests and Requirements........... Requirements.... ....... 4

6

Method of Packaging.................. Packaging........ ...................... .................. ........ .. 7

Previous Issue: 28 September 2011 Next Planned Update: 27 March 2017 Revised paragraphs are indicated in the right margin Primary contact: Mansour, Mana Hamad on 966-3-880-9557 Copyright©Saudi Aramco 2012. All rights reserved.

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-087 Issue Date: 27 March 2012 Qualification Requirements for Epoxy  Next Planned Update: 27 March 2017 Coatings for Application on Damp Steel Surfaces

1

Scope This Specification defines the minimum mandatory requirements for qualifying individual coating products for use in Saudi Aramco's approved protective coating system APCS-22. 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 Requ isitions or Purchase Orders when those documents address the procurement o f coating products that have not been previously qualified in accordance with this specification. Exception: 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

Conflicts and Deviations 2.1

Any conflicts between this specification and other applicable Saudi Aramco 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, Dh ahran.

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 Manager, Consulting Services Department of  Saudi Aramco, Dhahran.

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-087 Issue Date: 27 March 2012 Qualification Requirements for Epoxy  Next Planned Update: 27 March 2017 Coatings for Application on Damp Steel Surfaces

3

References Material or equipment supplied to this specification shall comply with the latest editio n 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 Specification 09-SAMSS-060

 Packaging Requirements for Coatings

Saudi Aramco Engineering Standard SAES-H-001

3.2

 APCS-22 Epoxy Coating for Application onto Damp Steel Surfaces (Self-Priming or with Epoxy  Primer)

Industry Codes and Standards American Society for Testing and Materials  ASTM B117 

Salt Spray (Fog) Testing 

 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 D1193

 Reagent Grade Water 

 ASTM D1640

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

 ASTM D1654

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

 ASTM D1849

 Package Stability of Paint 

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-087 Issue Date: 27 March 2012 Qualification Requirements for Epoxy  Next Planned Update: 27 March 2017 Coatings for Application on Damp Steel Surfaces

 ASTM G26 

Operating Light-Exposure Apparatus (Xenon Arc Type) with and without Water for Exposure of   Nonmetallic Material 

Society for Protective Coatings SSPC PA2

 Measurement of Dry Paint Thickness with Magnetic Gages

SSPC SP10 (SIS Sa 2 1/2) SSPC VIS 1

 Near White Blast Cleaning 

 Pictorial Surface Preparation Standards for   Painting Steel Surfaces

International Standards Organization  ISO 2815

4

5

 Buchholz Indentation Hardness Test 

General Requirements 4.1

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

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.

Qualification Tests and Requirements 5.1

Physical Property Tests 5.1.1

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

weight loss - 0

 b)

skinning, pressure and corrosion - 10

c)

settling - 6 or better 

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-087 Issue Date: 27 March 2012 Qualification Requirements for Epoxy  Next Planned Update: 27 March 2017 Coatings for Application on Damp Steel Surfaces

d) 5.1.2

grains, lumps, or streaks - 8 or better 

Spray Properties The ready mixed primer and topcoat shall be easily applied in one coat to a vertical surface at a dry film thickness of at least 200 micrometers (8 mils) with no tendency to orange peel, sag, creep or run.

5.1.3

Drying Times When tested in accordance with ASTM D1640, the Dry-Through (or  Dry-To-Handle) Time shall be two hours or less and the Dry-To-Recoat Time shall not exceed 10 hours at 10°C.

5.1.4

Usable Potlife At 40ºC, 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.

5.1.5

Adhesion Test a)

Prepare test panels as in paragraph 5.2 except for curing which shall be as shown in Table 1. Table 1

 b)

5.1.6

Coating

Substrate

Drying Times at 25 ± 1ºC

Primer

Damp Steel

72 hours

Topcoat

Damp Primer

Seven 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 the 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).

Indentation Hardness Test Using the draw down application method, apply one coat of top coat to a  polished metal or glass panel. Dry film thickness shall be in the range 125-175 micrometers. Allow the coating to cure for 7 days at 20ºC. Page 5 of 7

Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-087 Issue Date: 27 March 2012 Qualification Requirements for Epoxy  Next Planned Update: 27 March 2017 Coatings for Application on Damp Steel Surfaces

Perform the Buchholz hardness test in accordance with ISO 2815. The minimum acceptable reading shall be 60. 5.2

5.3

Test Panel Preparation 5.2.1

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 VIS 1 Rust Grade A, Adherent Mill Scale. The minimum thickness of the test panel shall be 5 mm.

5.2.2

Abrasive blast the test panels to meet (but not exceed) the cleanliness requirements of Near White Metal Blast, SSPC SP10 (SIS Sa 2 1/2).

5.2.3

The profile of the blasted surface shall be 40-75 micrometers (1.5 - 3 mils) and shall be determined with rep lica tape.

5.2.4

Immediately prior to each coatings application, spray a light mist of  ASTM D1193 Grade water onto the surface to be coated. The surface shall be visually damp but shall not have a water sheen.

5.2.5

Mix and apply the coatings in accordance with Vendor's recommendations. Cure the coatings for seven days at a temperature of  32 ± 1ºC and 95-100% relative humidity. Dry film thickness shall be measured and recorded in accordance with SSPC PA2, and shall meet the following requirements: -

Each coat

:

200 micrometers (8 mils) maximum

-

Total system :

300 - 400 micrometers (12-16 mils)

Performance Tests 5.3.1

Prepare two panels in accordance with paragraph 5.2 and scribe each  panel in accordance with ASTM D1654. Expose panels alternately in a Weather-O-Meter in accordance with ASTM D822, Procedure B or in accordance with ASTM G26, method B, and a salt fog cabinet in accordance with ASTM B117, Salt Spray (Fog) Testing. Place the  panels in the Weather-O-Meter for 100 hours and in the Salt Fog for  200 hours. Continue testing until a total of 500 hours in the Weather-OMeter and 1000 hours in the Salt Fog has been achieved. At the conclusion of the test, each coating will be evaluated for and meet the criteria found in Table 2.

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-087 Issue Date: 27 March 2012 Qualification Requirements for Epoxy  Next Planned Update: 27 March 2017 Coatings for Application on Damp Steel Surfaces

Table 2

Standard

5.3.2

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

9 or better 

 ASTM D1654

Standard Evaluation of  Painted or Coated Specimens Subjected to Corrosive Environments

Rating of Failure at Scribe shall be 9 or  better 

Maximum Service Temperature The maximum service temperature of the coating system shall be at least 150ºC. To verify compliance with this requirement, conduct adhesion tests on coated panels that have been prepared in accordance with  paragraph 5.1.5 and then exposed in an oven for 14 days at 150ºC. The adhesion shall be at least 90% of that obtained on samples prepared and tested in accordance with paragraph 5.1.5 but not subsequently exposed in an oven.

6

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

27 March 2012

Revision Summary Revised the "Next Planned Update". Reaffirmed the contents of the document, and reissued with editorial revision to removed SAES-H-101 and replaced with SAES-H-001.

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