The instrument design and manufacture according to GB / T 9280-2008 "Paints and varnishes - Pressure test for stackability. Paints and varnishes measuring single coating or related products, composite layer system within a predetermined drying time of sufficiently dried, and then, when the the two painted surface or a painted surface with another surface under pressure conditions applies placed under contact resistance to damage. II. Structure schematic diagram of the instrument is composed of a base and a slide freely pressure column. The lower end of the internal pressure column for a ball joint, its bottom plane and adhesion on the surface of the test panel. The main technical parameters: 1. Pressure column weight: 250g 2. Pressure column bottom diameter: Φ50 ± 1 (mm) 3 counterbalance mass: 100g 1, 200g 2 500g 1