When judging putty is good or bad, from the putty hardness, whiteness, fineness, workability, construction performance, environmental protection and other aspects, with the naked eye is difficult to distinguish between good and bad, good putty sticky and delicate, on the contrary, divergent, pinhole Poor putty quality, you can use a gray knife to shovel some good and putty, in turn, quickly fell out of the sticky. After the construction, putty, etc. can not touch the white, nails do not scratch, water brush can not afford is a good putty. With respect to the purchase of putty powder, the following four criteria are simple: 1, the national standard The national standard is the minimum requirement for a product quality. The national standard for putty products to be implemented is "JG/T3049-1998 "Building putty for indoor use". The national standard is generally marked on the packaging of standard products. 2. ISO certification ISO certification mainly refers to ISO9001-2000 quality system certification, and the quality of products produced by ISO certified companies can be guaranteed. 3, see security Manufacturers of brand putty powder generally have a strong sense of anti-counterfeiting. To prevent the product from being counterfeited, there are anti-counterfeit measures. The product packaging is generally affixed with a security mark or a digital security sticker. Scratch the coating to identify the true and false. 4, choose the brand Choosing putty, a well-known brand with a high market share, is a guarantee of product quality. The quality of products of unknown brands is not guaranteed. Self-made putty environmental problems are not well resolved, but construction performance is good. Specially reminded that putty powder can also be poisoned. It is not noticeable when putty is put on, and there are slight headaches and nausea. Be alert! Famous brands (in no particular order) 1. Meichao MEICHAO (beginning in 1996, China Well-known Trademark, one of the most influential brands in the building materials industry, a large-scale manufacturer of high-quality home improvement products, and Meichao Group Co., Ltd.) 2. Blacker Pattex (Henkel, one of the world's most international multinational groups under the Henkel Group, the world's top 500 companies, famous brands, Henkel (China) Investment Co., Ltd.) 3.Ryans (top ten brand of putty powder, high-tech enterprise, large-scale independent innovation enterprise integrating R&D, manufacturing and sales, Beijing Lions High-tech Co., Ltd.) 4. Saint-Gobain (France, one of the world's largest manufacturers of building materials, large-scale multinational building materials company, ten major brands of gypsum board, Saint Gobain gypsum building materials (Shanghai) Co., Ltd.) in 1665 5. Mabe MAPEI (founded in Italy in 1937, the adhesives for floor and wall installation and the leader in supporting production, Mabe Construction Materials (China) Co., Ltd.) 6. Jinyu (National Accredited Enterprise Technology Center, Innovative Enterprise in National Independent Innovation Demonstration Zone, R&D Headquarters under the Golden Dragon Group, Beijing Institute of Building Materials Science) 7. Australia Nengao (started in Australia in 1990, specializing in the manufacture of dry mortar and polymer additives for large multinational corporations, influential brands, Australia Neng Gao (China) Co., Ltd.) 8. Nippon Nippon (beginning in Japan in 1881, one of the earliest paint companies in the world, leading brand in the paint industry, famous paint manufacturer, Nippon Paint (China) Co., Ltd.) 9. Meihui (China Famous Brand, Fujian Famous Brand, a leading high-tech enterprise specializing in the production of architectural coatings and waterproof coatings, Fujian Huixing Building Material Development Co., Ltd.) 10. Wellcome (in 1990, the national building materials system AAA-level enterprise, a building materials high-tech enterprise integrating R&D, production, sales and construction, Huikang Industry Corporation of Henan Province) Renovation Material Knowledge Lamp Brand Coating Home Decoration Socket Welding Flange,Forged Welding Flange,Stainless Steel Socket Welding Flange,Stainless Steel Forged Flange Cangzhou Youlong Pipe Fitting Manufacturing Co., LTD , https://www.ypco88.com