ASTM D6491-99
Historical Standard: ASTM D6491-99 Standard Practice for Evaluation of Aging Resistance of Prestressed Prepainted Metal In a Dry Heat Test
SUPERSEDED (see Active link, below)
ASTM D6491
1. Scope
1.1 This practice can be used to evaluate the resistance of a prestressed prepainted metal panel to cracking, or loss of adhesion, or both, after accelerated heat aging. Most coil coated products are formed and bent into specific shapes to produce a final product. These operations introduce stresses, which may be relieved by cracking of the coating afer aging.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D4145 Test Method for Coating Flexibility of Prepainted Sheet
Keywords
aging; coil; cracking; dry heat; fabrication; flexibility; heat aging; prepaint; pick-off; stresses; t-bend; Aging resistance; Dry heat tests; Prestressed prepainted metal;
ICS Code
ICS Number Code 87.020 (Paint coating processes)
DOI: 10.1520/D6491-99
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