QTY-32 Cylindrical Mandrel Tester/Bending Tester Maximum test piece width60mm There are 12 stainless steel bars with different diameters: 2, 3, 4, 25, 5, 6, 8, 10, 12, 16, 20, 32mm The bending tester is designed according to GB/T 6742 and ISO 1519-93, which is suitable for the determination of the minimum diameter of the paint and varnish coating under the standard conditions, bending around a certain diameter of the cylindrical shaft, and without causing damage to the coating, It is expressed in mm This is a very simple and rapid method for measuring the elasticity of coatings. Only the test plates of existing coatings are bent on the circular shaft of known diameter, and the cracking or damage of the coating is observed.