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ISO 1520:2006

Current Date published:

Paints and varnishes — Cupping test

ISO 1520:2006 specifies an empirical test procedure 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 gradual deformation by indentation under standard conditions.

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 a particular requirement;
  • or by gradually increasing the depth of indentation to determine the minimum depth at which the coating cracks and/or becomes detached from the substrate.

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Related Information

Similar Standards

  • AS/NZS 1580.101.1:1999

    Methods of test for paints and related materials - Conditions of test - Temperature, humidity and airflow control

  • AS/NZS 1580.101.4:1999

    Methods of test for paints and related materials - Conditions of test - Temperature control

  • AS/NZS 1580.101.5:1999

    Methods of test for paints and related materials - Conditions of test - Temperature and humidity control

  • AS/NZS 1580.102.2:1995

    Methods of test for paints and related materials - In-process sampling

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ISO 1520:2006

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