09-SAMSS-021

Previous Issue: 30 May 2009 Next Planned Update: 30 May 2014

Revised paragraphs are indicated in the right margin of 8

Primary contact: Khashram, Maher Saud on 966-3-8760261

Copyright©Saudi Aramco 2011. All rights reserved.

Materials System Specification

09-SAMSS-021 22 June 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................................. 2

3 References..................................................... 3

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

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

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

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)

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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 products that have not

previously been qualified for use by Saudi Aramco.

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 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 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, 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 Manager, Consulting Services

Department of Saudi Aramco, Dhahran.

http://standards/docs/SAES/PDF/SAES-H-101.pdf

http://standards/docs/SAEP/PDF/SAEP-302.pdf




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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 Approved Protective Coating Systems,

APCS-6 Alkyd Enamel

3.2 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

http://standards/docs/SAEP/PDF/SAEP-302.pdf

http://standards/docs/SAMSS/PDF/09-SAMSS-060.pdf

http://standards/docs/SAES/PDF/SAES-H-101.pdf




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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 Thorough Blast Cleaning

4 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.

5 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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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 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

5.2 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.




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5.2.2 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.

5.2.3 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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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 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

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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.

6 Packaging Requirements

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

http://standards/docs/SAMSS/PDF/09-SAMSS-060.pdf




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Revision Summary 30 May 2009 Revised the "Next Planned Update". Reaffirmed the contents of the document and reissued

with editorial changes. 22 June 2011 Editorial revision to remove the committee members list.

09-SAMSS-021

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