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ASTM D6237 - 24

Standard Guide for Painting Inspectors (Concrete and Masonry Substrates)

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Edition date: 2024-07-01
In Force
Available languages: English
Summary:

Keywords: abrasive blasting; acid treatment (concrete); adhesion; chemical cleaning; coatings; concrete; detergents; inspection; laitance; masonry; moisture;
Scope:

1.1 This guide is intended as an information aid to painting inspectors in carrying out their tasks correctly and efficiently. It includes the key elements of surface preparation, coatings application, and final approval for both field and shop work. The items should be selected that are pertinent to a specific project.

Note 1: For additional helpful information, refer to the following documents:

Manual of Concrete Practice ACI 515R American Concrete Institute2

Manual of Coating Work for Light Water Nuclear Power Plant Primary Containment and Other Safety Related Facilities3

Steel Structures Painting Manual Vol. 1 - Good Painting Practices4

Steel Structures Painting Manual Vol. 2 - Systems and Specifications4

Manufacturers Specifications and Instructions (made available to the inspector for reference to special requirements for proper application)

Safety Data Sheets (needed to ensure that personnel take necessary precautions in handling hazardous materials). Available from Materials manufacturer.

1.2 Certain industries or owners may require certified inspection personnel. See Guide D4537 for establishing procedures to certify inspectors for coating work in nuclear facilities. AMPP offers a training and certification program for concrete coating inspection.4

1.3 In certain cases the inspector may be required to assess the condition of the concrete substrate. SSPC has published an illustrated guide for performing a concrete condition assessment.4

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This guide is arranged in the following order:

 

Section

Referenced Documents

2

 

ASTM Standards

2.1

 

OSHA Standards

2.2

 

ICRI Standards

2.3

 

SSPC Standards

2.4

Significance and Use

3

Preparation for Inspection

4

Surface Preparation Methods and Requirements

5

 

Surface Preparation

5.1

 

Factors Affecting Coating Performance

5.2

 

Surface Condition

5.2.1

 

Cleanliness

5.2.2

 

Moisture

5.2.3

 

Surface Preparation Procedures

5.3

 

Dry Surface Cleaning

5.3.1

 

Water and Steam Cleaning

5.3.2

 

Mechanical Tool Cleaning

5.3.3

 

Hand Tool Cleaning

5.3.3.1

 

Power Tool Cleaning

5.3.3.2

 

Scarifying Machines

5.3.3.3

 

Pre- and Post-Surface Preparation

5.3.3.4

 

Finished Surface

5.3.3.5

 

Blast Cleaning

5.3.4

 

Water Blast Cleaning

5.3.5

 

Acid Etching

5.3.6

Precautions in Preparing Unpainted and

 

Previously Painted Surfaces

5.4

Inspection of Surfaces Prior to Field Painting

5.5

 

New Construction

5.5.1

 

Maintenance Repainting

5.5.2

Cracks and Voids

6

 

Cracks

6.1

 

Cracks in Concrete

6.1.1

 

Joints in Concrete

6.1.2

 

Voids

6.2

 

Recoat Intervals

6.3

Coating Storage and Handling

7

 

Storage of Coating and Thinner

7.1

 

Mixing of Coatings

7.2

 

Thinning

7.3

 

Thinning of Coating

7.3.1

 

Heating of Coating

7.4

Ambient Condition Considerations

8

 

Drying

8.1

 

Low Temperature

8.2

 

High Temperature

8.3

 

Moisture

8.4

 

Wind

8.5

Coating Application

9

 

Residual Contaminants

9.1

 

Quality Assurance

9.2

 

Film Defects

9.2.1

 

Brush Application

9.3

 

Spray Application

9.4

 

Roller Application

9.5

 

Miscellaneous Methods

9.6

 

Rate of Application

9.7

 

Additional Considerations

10

 

Ventilation

10.1

 

Painting Schedule

10.2

 

Film Integrity

10.3

 

Recoat Time

10.4

 

Coating System Failure

10.5

Inspection Equipment

11

 

General

11.1

 

Adhesion of Existing Coating

11.1.1

 

Portable Pull-Off Adhesion

11.1.2

 

Field Inspection Equipment

11.2

 

Drying and Curing Times

11.2.1

 

Thermometers

11.2.1.1

 

Psychrometric Charts

11.2.1.2

 

Wet-Film Thickness Gauges

11.2.2

 

Notched Gage

11.2.2.1

 

Dry-Film Thickness Gauges

11.2.3

 

Destructive Thickness Gauge

11.2.3.1

 

Nondestructive Film Thickness Gauges

11.2.3.2

 

Discontinuity (Holiday) Tester

11.3

Inspection Checklist

Appendix X1

1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ICS: 91.060.10-Walls. Partitions. Façades, 87.020-Paint coating processes
CTN: D01.46 - D01.46

Standards Cancellations

Anula a D6237-19

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Es referenciada por D5498 - 25

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