09-SAMSS-021

Materials System Specification 09-SAMSS-021 22 June 2011 2011 Qualification Requirements for Alkyd Enamel Coating System (APCS-6) Document Responsibility: Paints and Coatings Standards Committee

Saudi Aramco DeskTop Standards Table of Contents

1 Scope............................................................. 2 2

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

3 References..................................................... 3 4

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

5

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

6

Packaging Requirements............... Requirements.... ..................... ................ ...... 7

Previous Issue: 30 May 2009 Next Planned Update: 30 May 2014 Revised paragraphs are indicated in the right margin Primary contact: Khashram, Maher Saud on 966-3-8760261 Copyright©Saudi Aramco 2011. All rights reserved.

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

1

Scope This Specification establishes the mandatory requirements for qualifying individual coating products for use in Saudi Aramco's approved protective coating system SAES-H-101, APCS-6. 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 produc ts that have not  previously been qualified for use by Saudi Aramco.

1.2

Purchase Requisitions/Purchase Orders This specification shall be attached to Purchase Re quisitions or Purchase Orders when those documents address the procurement of coating products that have not been previously qualified for use by Saudi Aramco. 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 p roduct 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, Dhah ran.

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-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

3

References The selection of material and equipment, and the design, construction, maintenance, and repair of equipment and facilities covered by this specification shall comply with the latest edition of the references listed below, unless otherwise noted. a)

The date of the Purchase Order.

 b)

The date testing is begun when there is no Purchase order.

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-101  APCS-6 3.2

 Approved Protective Coating Systems, Alkyd Enamel 

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

Carbon Structural Steel 

 ASTM B117

Operating Salt Spray (Fog) Apparatus

 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 D1640

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

 ASTM D1654

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-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

The Society for Protective Coatings SP 6

Commercial Blast Cleaning 

 PA2

Measurement of Dry Paint Thickness with  Magnetic Gages

Vis 1

Pictorial Surface Preparation Standards for   Painting Steel Structures

Swedish Standards Institute SIS 05 59 00 Sa 2

4

5

Thorough Blast Cleaning 

General Requirements 4.1

For purposes of this specification the Buyer's Representative shall be the Responsible Standardization Agency (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 Package stability shall be determined separately for the primer and the topcoat. When stored at 52 + 1°C for 6 months in accordance with ASTM D1849, the sample(s) shall meet the following requirements: a.

Weight Loss

- 0

 b.

Skinning, Pressure or Corrosion

- 10

c.

Settling

- 6 or better 

d.

Grains, lumps or streaks

- 8 or better 

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

5.1.2

Spray Properties Spray properties shall be determined separately for the primer and the topcoat. The primer shall be spray applied to a vertical surface at the wet film thickness corresponding to a dry film thickness between 40 and 50 microns. The topcoat shall be spray applied to a separate vertical surface at the wet film thickness corresponding to a dry film thickness  between 25 and 50 microns. The freshly sprayed coatings shall show no tendency to orange peel, sag, creep or run.

5.1.3

Brushing Properties Brushing properties shall be determined separately for the primer and the topcoat. Each coating shall be brush applied to a vertical surface. The freshly applied coatings shall brush easily, possess good leveling  properties, provide uniform coverage and good hiding, and show no running or sagging tendencies.

5.1.4

Drying Times When tested in accordance with ASTM D1640, the dry times shall be according to Table 1. Table 1  –  Drying Times Set To Touch

5.2

Dry Through

Minimum

Maximum

Minimum

Maximum

Fast Dry Primer

5 min.

15 min.

-

2 hrs.

Standard Primer

30 min.

2 hrs.

-

16 hrs

Topcoat

30 min.

2 hrs.

-

48 hrs

Performance Tests 5.2.1

Steel Panel Preparation 5.2.1.1

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.

5.2.1.2

The test panels shall be abrasive blast cleaned to a commercial degree of cleanliness as defined by SSPC SP 6 and SIS 05 59 00 Sa 2. Page 5 of 8

Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

5.2.2

5.2.3

Coating Application 5.2.2.1

The primer shall be mixed, applied and cured in strict accordance with the Vendor's recommendations. The primer  shall be applied in at least two coats at a maximum dry film thickness of 50 microns per coat. The total dry film thickness of the primer shall be a minimum of 85 microns. Dry film thickness shall be measured and recorded in accordance with SSPC PA2.

5.2.2.2

After allowing the primer to cure for the minimum amount of  time recommended by the before over coating, then the topcoat shall be mixed, applied over the primer, and its curing time shall be in accordance with the coating manufacture. The topcoat shall be applied to reach the maximum dry film thickness of 50 microns. The final dry film thickness of the  primer and topcoats shall be a minimum of 125 microns and a maximum of 200 microns. Dry film thickness shall be measured in accordance with SSPC PA2.

Coating Compatibility Top coating by other coating system over the alkyd enamel (APCS-26) coated steel panels, cured for 48 hours, shall be evaluated and it shall show no evidence of wrinkling, blistering, lifting, or cohesion related failures.

5.2.4

Adhesion Prepare two panels in accordance with 5.2.1 and apply the complete coating system in accordance with 5.2.2. Allow these panels to completely cure in accordance with the dry through times in section 5.1.4. Score a line through to the metal across the width of the film using a sharp pointed knife. The film shall then be taped perpendicular  to and across the score line with water resistant, pressure sensitive 20 mm wide adhesive tape. The tape shall be pressed in firm contact with the film and shall extend approximately 25 mm on each side of the score line. Allow approximately ten seconds for the test area to return to room temperature. Grasp a free end of the tape and at a rapid speed, strip it from the specimen by pulling the tape back upon itself at 180 degrees. No more than 1.5 mm of paint shall be removed from the  primer and/or the metal on either side of the score line.

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

5.2.5

Aged Overcoating Two panels shall be prepared in accordance with 5.2.1 and primed in accordance with 5.2.2.1. After the panels have completely cured in accordance with the dry through times in section 5.1.4 they shall be  placed in an oven for seven days at 82 + 2°C. The panels shall then be removed from the oven and allowed to condition in laboratory environment for 24 hours. The topcoat(s) shall then be applied in accordance with 5.2.2.2. Adhesion tests shall be performed per   paragraph 5.2.4. No more than 1.5 mm of topcoat shall be removed from either side of the score line.

5.2.6

Salt Fog Performance Prepare two panels in accordance with 5.2.1 and apply the complete coating system in accordance with 5.2.2. Scribe the fully cured coating system in accordance with ASTM D1654 and expose in a salt fog cabinet in accordance with ASTM B117, Salt Spray (Fog) Testing. This procedure shall be continued until the test panels are exposed for  500 hours in the salt fog cabinet. At the conclusion of the test, the coating shall be evaluated for and shall meet the criteria shown in Table 2. Table 2  –  Salt Spray (Fog) Testing Standard

6

Acceptable Rating

 ASTM D714, Evaluating Degree of  Blistering of Paint

8F

 ASTM D660, Evaluating Degree of  Checking of Exterior Paint

No Checking

 ASTM D661, Evaluating Degree of  Cracking of Exterior Paint

No Cracking

 ASTM D610, Evaluating Degree of  Rusting on Painted Steel Surfaces

9

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

Rust creep from the scribe shall not exceed 2.5 mm.

Falling Sand Erosion

Not more than 5% of the total average thickness has been removed.

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

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Document Responsibility: Paints and Coatings Standards Committee 09-SAMSS-021 Issue Date: 22 June 2011 Qualification Requirements  Next Planned Update: 30 May 2014 for Alkyd Enamel Coating System (APCS-6)

30 May 2009 22 June 2011

Revision Summary Revised the "Next Planned Update". Reaffirmed the contents of the document and reissued with editorial changes. Editorial revision to remove the committee members list.

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