This has dolly of 50 mm x 50 mm cross-sectional area. The pressure is displayed on a digital LCD and represents the coating’s strength of adhesion to the substrate. Pull-Off Adhesion Tester is a easy to operate and fully portable, provides a test results values for adhesion.Using Square Dolly is also called as Tile Conversion Kit. Pull off Adhesion Tester has direct pulltensile force test and with suitable capacity and sensitivity for the test. This is capable of applying the load to the pull-head plate through a suitable fitting that does not exert any bending force. High precision digital pull-off type measuring instruments for adhesion and bond strength testing of all types of films, ceramic, tile adhesive, metals plastic coatings, concrete coats, and mortars and plasters and other materials. The self-adjusting feature results in extremely accurate and reproducible adhesion test results. The test is performed by securing a self-aligning quick coupling (dolly) perpendicular to the surface of the coating with an adhesive. After the adhesive is cured, a testing apparatus is attached to the loading fixture and aligned to apply tension perpendicular to the test surface. Pull-Off Adhesion Tester BGD 500S conforms to international standards