TIGER DRYLAC Quality Control Test instruction Erichsen cupping; DIN ISO 1520 PA 03 1. Purpose / Target: The cupping serves to determine the behavior of a painting with certain deformation of the background evaluate and thus the elasticity of the painting. 2. Description of the procedure: 2.1) Testing sets Testing set according to Erichsen (specifications according to DIN ISO 1520) 2.2) Execution The coated sample sheet metal into the testing set between stencil and compressor rod one clamps. Now the feed is switched on and observed in the microscope the developing cupping. As soon as the first breaks in the coating become visibly the feed will be stopped immediately. 2.3) Analysis Cupping is called the way of the tappet from the zero position to the position with the first recognizable cracking. This value is read off from the display of the testing set. 3. Link documents: ISO 1520 Approved by: Ing. M. Mathe Issue date April 95 Update status 01 Folder - Nr HQ 03 - 18 page 1/1