GB/T 9753-2007 Active National standards

GB/T 9753-2007 Paints and varnishes—Cupping test

Publish Date: 2007-09-11 Implement Date: 2008-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 9753-2007

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Paints, pigments, and dyes

ICS Name: Paints and varnishes

Publish Date: 2007-09-11

Implement Date: 2008-04-01

Pages: 7 pages

Scope

This standard specifies an empirical test procedure for evaluating the resistance of coatings on paints, varnishes, and related products to cracking or peeling from the metal substrate under standard conditions after gradual deformation due to indentation. This standard applies to single-coat or composite coating systems. For composite coating systems, each layer can be tested separately or the entire system can be tested. The test methods can be carried out as follows: --- Conduct the test according to the specified indentation depth, and evaluate it as "pass/fail" based on whether it meets specific requirements; --- Gradually increase the indentation depth to determine the minimum depth at which the coating first begins to crack or peel from the substrate.