The ISO 17132-2007 standard specifies a method for assessing the flexibility and adhesion of paints and varnish coatings on metal substrates by means of a T-bend test. This test method is suitable for checking whether coatings will crack or peel during bending, thus confirming their durability in practical applications. The standard covers the bending mode of coating test plates and the determination of the minimum bending diameter, aiming to provide a reliable way to verify the cracking performance and adhesion of coatings. The standard refers to similar test methods internationally, ensuring the conformity and suitability of the test.
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