Focusing on the surface treatment of fasteners, the manufacture and application of good coating products is the highest policy of Intech Services. The company is the general distributor of DuPont Teflon Coatings in the US and Canada. In order to provide competitive source coatings, DuPont has established a “fastener coating manufacturer authorization certification system†to recognize the application of coating injuries. Quality, guarantee for fastener users. The vice chairman said: "Any coating that is fortunate enough to hang on the DuPont Teflon brand name attaches great importance to the importance of product management. Establishing an authorization system is the only way to ensure that the coatings we distribute will be applied properly. Users are confident that they will get the expected results from DuPont Teflon's finished products." The system requires each paint store to meet a stringent set of standards and test results in order to maximize the application of the coating. Specifically, the applicator must provide proof of coating or plating quality and procedures and must have equipment for testing and application. In addition, a 1 mil (thousandth of an inch) 857G-018 coating (in combination with phosphate) must be supplied and tested by the following: 1 thousand hours salt spray test (ASTM B117), cross cut test (test substrate adhesion), MEK friction test (test cure degree), appearance test. Applicators who pass these tests represent the ability to provide fastener coatings that resist environmental damage. The applicator must agree to Intech Services' random review of its coating process. Hardware Tool Set,Brick Trowel,Masonry Tools,Brick Trowels Laizhou Chenke trading Co., Ltd. , https://www.chenkegroup.com