CUPPNG TESTER This test method supplies information on adhesion properties. This test is used for evaluating the resistance of a coating to cracking and detachment from a metal substrate when it is subjected to a gradual deformation. LAB-FINE Instrument is manufacturing following models. 1) Automatic cupping tester There are several drawbacks in hand-operated machine. To overcome these drawbacks LAB-FINE has developed automatic Erichsen Cupping testing machine. A coated metallic sheet is clamped and ballpoint is press. As the test panel is deformed the coated surface is kept under observation and the point at which cracks or detached from the substrate is noted. Specifications: • Punch: Spherical diameter of 20 mm • Sheet holder: diameter 33 mm • Die: diameter 27 mm • Dimensions: 450 x 450 x 550 height • Motor: I PH. 230 V. • Weight: About 25 Kg. 2) Cupping tester (manual) Specifications: Same as above • Dimensions: 300 x 250 x 350 Ht.