ASTM D6237 - 19

    Standard Guide for Painting Inspectors (Concrete and Masonry Substrates)

    Active Standard ASTM D6237 | Developed by Subcommittee: D01.46

    Book of Standards Volume: 06.02


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    Significance and Use

    3.1 This guide is intended as a reference for those concerned with the inspection of thin- or thick-film coating application to concrete and masonry substrates. It does not cover the application of cement-type coatings. The requirements for inspection should be addressed in all protective coating and lining work specifications. This guide may be used by specification writers when selecting and establishing the inspection requirements for coating and lining specifications. A sample checklist for use by inspectors is included as Appendix X1.1.

    1. Scope

    1.1 This guide is intended as an information aid to painting inspectors in carrying out the task 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

    C811 Practice for Surface Preparation of Concrete for Application of Chemical-Resistant Resin Monolithic Surfacings4

    Steel Structures Painting Manual Vol. 1 - Good Painting Practices5

    Steel Structures Painting Manual Vol. 2 - Systems and Specifications5

    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. SSPC offers a training and certification program for concrete coating inspection.5

    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.5

    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 Gages

    11.2.2

     

    Interchemical Gage

    11.2.2.1

     

    Notched Gage

    11.2.2.2

     

    Dry-Film Thickness Gages

    11.2.3

     

    Destructive Thickness Gage

    11.2.3.1

     

    Nondestructive Film Thickness Gages

    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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    SSPC Standards

    SSPC-AB 1 Mineral and Slag Abrasives

    SSPC Guide 23 Field Methods for the Determination of Moisture in Concrete and Masonry Walls and Ceilings, EIFS, and Stucco

    SSPC-Guide 6 Guide for Containing Debris Generated During Paint Removal Operations

    SSPC-Guide 7

    SSPC-PA 7 Application of Coating to Concrete

    SSPC-PA 9 Measurement of Dry Coating Thickness Using Ultrasonic Gages

    SSPC-SP13/NACE No. 6 Surface Preparation of Concrete

    International Concrete Repair Institute (ICRI)

    Guideline No. 03732 Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, and Polymer Overlays Available from International Concrete Repair Institute, 3166 S. River Rd., Suite 132, Des Plaines, IL 60018, http://www.icri.org.

    ASTM Standards

    C805 Test Method for Rebound Number of Hardened Concrete

    C811 Practice for Surface Preparation of Concrete for Application of Chemical-Resistant Resin Monolithic Surfacings

    D1212 Test Methods for Measurement of Wet Film Thickness of Organic Coatings

    D3359 Test Methods for Rating Adhesion by Tape Test

    D4138 Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means

    D4258 Practice for Surface Cleaning Concrete for Coating

    D4259 Practice for Preparation of Concrete by Abrasion Prior to Coating Application

    D4260 Practice for Liquid and Gelled Acid Etching of Concrete

    D4262 Test Method for pH of Chemically Cleaned or Etched Concrete Surfaces

    D4263 Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method

    D4285 Test Method for Indicating Oil or Water in Compressed Air

    D4414 Practice for Measurement of Wet Film Thickness by Notch Gages

    D4537 Guide for Establishing Procedures to Qualify and Certify Personnel Performing Coating and Lining Work Inspection in Nuclear Facilities

    D4787 Practice for Continuity Verification of Liquid or Sheet Linings Applied to Concrete Substrates

    D5064 Practice for Conducting a Patch Test to Assess Coating Compatibility

    D6132 Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Coating Thickness Gage

    D6677 Test Method for Evaluating Adhesion by Knife

    D7234 Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers

    D7682 Test Method for Replication and Measurement of Concrete Surface Profiles Using Replica Putty

    E337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of Wet- and Dry-Bulb Temperatures)

    F1869 Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride

    F2170 Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes


    ICS Code

    ICS Number Code 87.020 (Paint coating processes); 91.060.10 (Walls. Partitions. Facades)

    UNSPSC Code

    UNSPSC Code 27112200(Masonry and concrete tools)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D6237-19

    Citation Format

    ASTM D6237-19, Standard Guide for Painting Inspectors (Concrete and Masonry Substrates), ASTM International, West Conshohocken, PA, 2019, www.astm.org

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