XHY-19B Sagging Tester

Drawdown the coatings on a material(glass, test chart or board)using the appropriates sagging Thickness Gauges, then place the coated material at vertical position(90º)to the platform(eg: table).Allow 10 to 30 minutes(depending on the viscosity)for the coatings to sag under gravity. Check out the coating thickness without the sagging effect and the next coating thickness with the sagging effect. With that information, the recommended coating thickness is between the 2 layers of coatings.

ISO 16862, ASTM D 4400, ASTM D3730