This standard specifies the method for measuring the flexibility of paint films and putty films using a flexibility tester. The flexibility of paint films and putty films is expressed by the minimum shaft diameter that does not cause damage to the paint film and putty films. This standard applies to the determination of the flexibility of paint films and putty films.
GB/T 1731-2020 Referenced Document
GB/T 13452.2 Paints and varnishes.Determination of film thickness
GB/T 20777 Paints and varnishes Examination and preparation of samples for testing
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes. Sampling
GB/T 37356 Paints and varnishes—Lighting and procedure for visual assessments of coatings
GB/T 9271 Paints and varnishes.Standard panels for testing
GB/T 9278 Temperatures and humidities for conditioning and tesing of paint specimens
GB/T 1731-2020 history
2020GB/T 1731-2020 Determination of flexibility of coating and putty films
1993GB/T 1731-1993 Determination of flexibility of films
0000 GB 1731-1979
GB/T 1731-2020 Determination of flexibility of coating and putty films has been changed from GB/T 1748-1979 Method of test for flexibility of putty coatings.