GB/T 1728-1979 《Determination of drying time of paint film and putty film》 Related products

The GB/T 1728-1979 standard specifies the method for the determination of drying time of paint film and putty film. Under specific drying conditions, including the surface drying time of surface film formation and the actual drying time of all solid film formation. The standard details the use of different methods to detect surface drying and actual drying, such as blowing cotton ball method, finger touch method, cotton ball method and blade method, etc. The equipment and materials used in the determination process, such as tinplate, copper sheet, absorbentcottonph ball, etc., are specifically listed. This standard is used to evaluate the drying performance of coatings during manufacturing and application, ensuring that coatings can be dried and cured in a timely manner as required.