Active Standard ASTM D4708 | Developed by Subcommittee: D01.23
Book of Standards Volume: 06.01
Historical (view previous versions of standard)
Significance and Use
4.1 Free films are required for conducting tests to evaluate physical and mechanical properties such as tensile and elongation (Test Methods D2370 and E96/E96M), moisture vapor permeability (Test Methods D1653), and other physical properties of organic coatings where the substrate may interfere with the determination.
1.1 This practice covers the preparation of free films of organic coatings for use in determining the physical properties of the coatings. Procedures are given for preparing free films on three alternative substrates. These substrates are treated FEP (fluorinated ethylene-propylene) sheet, silicone coated paper, and halosilane coated glass plates.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
D1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
D1653 Test Methods for Water Vapor Transmission of Organic Coating Films
D2370 Test Method for Tensile Properties of Organic Coatings
E96/E96M Test Methods for Water Vapor Transmission of Materials
ICS Number Code 25.220.60 (Organic coatings)