SS-EN-ISO-1520 › Paints and varnishes - Cupping test (ISO 1520:2006)
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This International Standard specifies an empirical method for assessing the resistance of a coating of paint,varnish or related product to cracking and/or detachment from a metal substrate when subjected to gradualdeformation by indentation under standard conditions (see 7.1).For a multi-coat system, each coat may be tested separately or the complete system may be tested.The method may be carried out as follows:either as a pass/fail test, by testing to a specified depth of indentation to assess compliance with aparticular requirement;or by gradually increasing the depth of indentation to determine the minimum depth at which the coatingcracks and/or becomes detached from the substrate.
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SS-EN ISO 1520:2006
Dec. 7, 2006
EN ISO 1520:2006(IDT); ISO 1520:2006(IDT)