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ISO 4624:2016

Current Date published:

Paints and varnishes — Pull-off test for adhesion

ISO 4624:2016 specifies three methods (i.e. one dolly or two dollies on a painted panel and two dollies, one as painted substrate) for determining the adhesion by carrying out a pull-off test on a single coating or a multi-coat system of paint, varnish or related product.

These test methods have been found useful in comparing the adhesion behaviour of different coatings. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in adhesion.

The test may be applied using a wide range of substrates. Different procedures are given according to whether the substrate is deformable, for example thin metal, plastics and wood, or rigid, for example thick concrete and metal plates. To avoid distortion of the substrate during the tensile test, it is common to use a sandwich construction. For example, for special purposes, the coating may be applied directly to the face of a test dolly.

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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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