DIN EN ISO 1519-2003 Paints and varnishes bending test (cylindrical mandrel) is an international standard that specifies the method of evaluating the bending performance of Paints and varnishes coatings using cylindrical mandrel. The standard checks coatings for crazing, flaking or Miscellaneous damage during bending by bending the coating sample to an angle to test their flexibility and adhesion. This test assesses the performance of coatings under bending stresses that may be faced in actual use, especially in the fields of automotive coatings, architectural coatings, etc. The standard details the test equipment requirements, specimen preparation, bending procedures and evaluation criteria to ensure the repeatability and reliability of test results. This standard provides an important technical basis for the Coatings industry to improve the application performance and quality control of Coatings products.