Coating standard: zinc rich primer standard Hg / T 3668-2009

Core tip: zinc rich primer Zinc rich primer Hg / T 3668-2009 replaces Hg / T 3668-2000 Preface HG/T 3668-2009 This standard replaces Hg / T 3668-2000 zinc rich primer The main technical differences between this standard and Hg / T 3668-2000 are as follows: - — Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Home of coatings: zinc rich primer Hg / T 3668-2009 replaces Hg / T 3668-2000 preface Hg / T 3668-2009 this standard replaces Hg / T 3668-2000 zinc rich primer The main technical differences between this standard and Hg / T 3668-2000 are as follows: -- Classification of products according to the content of metal zinc in nonvolatile matter is added; -- Requirements for "adhesion" and "density" are added; -- Requirements for "weatherability", "impact resistance" of inorganic zinc rich primer and "quality of epoxy resin" of organic zinc rich primer are cancelled; ——The requirements for "salt spray resistance" and "drying time" of inorganic zinc rich primer have been improved; - the method for determining "metal zinc content in nonvolatile matter" by instrumental method has been added; - the provisions for film thickness and curing time have been changed Appendix A of this standard is normative This standard is proposed by China Petroleum and Chemical Industry Association This standard is under the jurisdiction of the National Technical Committee for standardization of coatings and pigments The main drafters of this standard: Zheng guojuan, Zhang Yinan, Li Rongjun, Li Jun, Shen Yanfei, Du Weina, Yan Jie, Li Yunde, Yi Yuehua, Ding Zhaobo, Li Chun, song Zhirong, Bian Darong, LAN Guangyou, Xing Juhong, Xiong Guirong, Jiang Fangqun, Zhou Fugen, Li Yixuan, Kang Lusheng, excellent history, Chen Shousheng This standard was first issued in 2000, and this is the first revision The scope of zinc rich primer Hg / T 3668-2009 1 this standard specifies the classification, requirements, test methods, inspection rules, marks, packaging and storage of zinc rich primer This standard is applicable to multicomponent coatings composed of zinc powder (except flake zinc powder), inorganic or organic paint base, curing agent, solvent, etc., which are mainly used for rust prevention of steel substrates This standard is not applicable to non zinc rich products with metal zinc content less than 60% in non-volatile matter 2 Normative references the clauses in the following documents become the clauses of this standard through the reference of this standard For dated references, all subsequent amendments (excluding the contents of Corrigendum) or revisions are not applicable to this standard However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used For undated references, the latest edition is applicable to this standard GB / T 1725-2007 paints, varnishes and plastics determination of non-volatile matter content (IDT IS0 3251:2003) GB / T 1728-1979 (1989) determination of drying time of paint film and putty film GB / T 1732-1993 determination of impact resistance of paint film GB / T 1771-2007 determination of neutral salt spray resistance of paints and varnishes (IDT IS0 7253:1996) GB / T 3186 sampling of raw materials for paints, varnishes and varnishes (GB / T 3186-2006, IDT IS0 15528:2000) GB / T 5210-2006 paint and PU paint pull off method adhesion test (IDT IS0 4624:2002) GB / T 6750-2007 paint and varnish density determination pyknometer method (IDT IS0 2811-1:1997, paint and varnishes Determination of density part L: pyknometer method) GB / T 8170 numerical rounding rules and limit value representation and determination GB / T 9271 Standard test panel for paints and varnishes (GB / T 9271-2008, mod IS0 1514:2004) GB / T 8923 rust grades and derusting grades of steel surfaces before coating (GB / T 8923-1988, EQV IS0 8501-1:1988) GB / T 9278 temperature and humidity for condition adjustment and test of paint samples (GB / T 9278-2008, IDT IS0 3270:1984, paints and varnishes and their raw materials temperature and humidity for CO binding And testing) GB / T 9750 marking for packaging of coating products GB / T 13288.1 preparation of steel substrates before application of paints surface roughness characteristics of steel substrates after blast cleaning part 1: technical requirements and definitions of ISO surface roughness comparison blocks for assessment of surface roughness of steel substrates after blast cleaning (GB / T 13288-2008, IDT IS0 8503-1:1998) GB / T 13452.2 paints and varnishes Determination of film thickness (GB / T 13452.2-2008, IDT IS0 2808:2007) GB / T 13491 general rules for coating product packaging astmd 6580-2000 (2005) determination of metal zinc content in zinc powder pigment and zinc rich paint dry film 3 product classification this standard is divided into type I and type II based on the type of zinc rich primer: Type I: inorganic zinc rich primer, including solvent based inorganic zinc rich primer and water-based inorganic zinc rich primer; type II: organic zinc rich primer Each type is divided into three categories according to the content of metal zinc in the nonvolatile: 1 The content of metal zinc in the nonvolatile is ≥ 80%; 2 The content of metal zinc in the nonvolatile is ≥ 70%; 3 The content of metal zinc in the nonvolatile is ≥ 60% 4 The product performance shall meet the requirements of Table 1 Table 1 requirements for product performance: paint house focuses on the news and information of coating, diatom mud, paint coating, coating process, fire retardant coating and coating, diatom mud, paint coating, coating process, decoration knowledge and decoration effect map of fire retardant coating,