GB/T 6742-2007 《Paints and varnishes - Bend test (cylindrical mandrel)》 Related products

GB/T 6742-2007 specifies a test method for evaluating the cracking resistance and/or disbonding with metal or plastic substrates of Paints, varnishes or related coatings when bent around cylindrical mandrel under standard conditions. This standard applies to single and multi-coating systems, and the performance of each coating or the whole coating system can be tested separately. The test results help to evaluate the tolerance of coatings to stress and deformation in actual use, ensuring that their performance and durability meet the expected requirements.