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    Home > Coatings News > Paints and Coatings Market > Coating standard: characteristics and rules of quality inspection of polymer waterproof coating

    Coating standard: characteristics and rules of quality inspection of polymer waterproof coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: the main test items of polymer cement waterproof coating include solid content, drying time, tensile strength, elongation at break, low temperature flexibility, impermeability, bonding strength of wet base surface, impermeability and appearance inspection Section I characteristics and rules of quality inspection The performance test method of polymer cement waterproof coating is similar to that of other types of building waterproof coating, but it also has its own particularity With the development of building waterproof material industry, more and more attention has been paid to the quality and performance test methods of waterproof materials in China, which has been issued by the state Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Coating home news: the main test items of polymer cement waterproof coating include solid content, drying time, tensile strength, elongation at break, low temperature flexibility, water impermeability, bonding strength of wet base, impermeability and appearance inspection Section I characteristics and rules of quality inspection performance test method of polymer cement waterproof coating is similar to other types of building waterproof coating, but also has its own particularity With the development of building waterproof material industry, more and more attention has been paid to the quality and performance test methods of waterproof materials in China The national standard GB / t16777-1997 test methods of building waterproof coating has been issued by the state, and the building material industry standard JC / t894-2001 polymer cement waterproof coating has been issued by the State Economic and Trade Commission According to these national and industrial standards, this chapter introduces the testing methods of waterproof coating 1、 The characteristics and scope of product quality testing polymer cement waterproof coating, as a chemical product, needs quality testing, but it is different from general chemical products in terms of its composition and use The detection of polymer cement waterproof coating includes the detection of product performance, coating construction performance, general performance and special protection performance of the coating Through this series of tests, the production and construction quality of products can be effectively monitored, so that the corresponding construction scheme can be formulated according to their performance and quality, so as to ensure the quality of the final product The detection of polymer cement waterproof coating has the following characteristics 1 The object of the product quality test of polymer cement waterproof coating is mainly reflected in the film performance Physical method is the main method and chemical method is the auxiliary 2 The quality inspection of polymer cement waterproof coating includes not only the performance inspection of the product itself, but also the construction performance inspection of the product 3 The quality inspection of polymer cement waterproof coating includes the inspection of the quality of the coating film in the specific environment where the coating is located, so as to judge whether its quality meets the use requirements As the quality inspection of polymer cement waterproof coating has the above characteristics, its quality inspection scope includes the following aspects: the inspection of product performance and construction performance; the inspection of general use performance and special performance of the coating 2、 The rules of product quality inspection 1 The factory inspection and form inspection of product quality the product quality inspection of polymer cement waterproof coating can be divided into factory inspection and form inspection The factory inspection items include: appearance; solid content; drying time; tensile strength without treatment; elongation at break without treatment; low temperature flexibility; impermeability or impermeability The items of formal inspection include all items specified in Chapter IV of JC / t894-2001 polymer cement waterproof coating In case of any of the following circumstances, formal inspection shall be carried out (1) approval of trial production of new products or products transferred to other factories (2) in normal production, formal inspection shall be conducted once a year (3) when the raw material, ratio and process of the product are greatly changed, which may affect the product quality (4) when the product is shut down for more than half a year and the production is resumed (5) when there is a big difference between the delivery inspection result and the last type inspection (6) when the national quality supervision institution puts forward the requirements for formal inspection 2 The same type of 10t products are taken as a batch in the group batch and sampling rules, and those less than 10t are also taken as a batch The sampling of liquid components of products shall be carried out in accordance with the provisions of gb3186 sampling of coating products; the sampling of solid components shall be carried out in accordance with the provisions of bagged cement in gb12573-1990 sampling methods for cement, and a total of 5kg samples shall be taken for the two components 3 It is determined that the appearance of the product does not meet the requirements of JG / t894-2001 In the low temperature flexibility and impermeability test, if each test piece conforms to the relevant physical and mechanical performance technical requirements in JG / t894-2001 standard, the project is qualified; if the arithmetic mean value of the test results of other items conforms to the relevant physical and mechanical performance technical requirements in JC / t994-2001 standard, the project is qualified; the impermeability is determined in accordance with Appendix A (standard appendix) of JC / t894-2001 Fixed In the factory inspection and type inspection, if all items meet the requirements of Chapter IV of JC / t894-2001 standard, the batch of products shall be judged as qualified; if there are two or more indexes that do not meet the standard, the batch of products shall be judged as unqualified; if there is one index that does not meet the standard, it is allowed to double sampling in the same batch of products for single re inspection, if the re inspection still does not meet the standard, The batch of products shall be judged as unqualified Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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