The conical mandrel bend tester is used to determine properties of a coating. Resistance to cracking detachment from its substrate and its elongation during the test. Conical mandrel test is also known as standard method for assessing the flexibility and the adhesion properties of coatings when these are subjected to bending stresses This is accomplished by bending the test material around a conically shaped metal bar. The conical mandrel bending test is a commonly used for testing for painted or coated panels.
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