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GB/T 31817-2025: Specification of coating for corrosion protection of windpower equipment
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GB/T 31817-2025	English	779	Add to Cart	6 days [Need to translate]	Specification of coating for corrosion protection of windpower equipment
GB/T 31817-2015	English	529	Add to Cart	5 days [Need to translate]	Specification of coating for corrosion protection of wind power equipment

GB/T 31817-2025: Specification of coating for corrosion protection of windpower equipment

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ICS 87.020 CCSG51 National Standards of the People's Republic of China Replaces GB/T 31817-2015 Technical Specifications for Protective Coating of Wind Power Generation Facilities Published on 2025-12-02 Implemented on July 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3 Terms and Definitions 4.Classification 3. 4.1 Classification of Painting Areas 3 4.2 Classification of Corrosive Environments 3 4.3 Coating Classification 4 5 Requirements 4 5.1 Coating System 4 5.2 Coating Process 15 6.Test Methods 19 6.1 Coating Materials 19 6.2 Coating System 19 6.3 Surface Treatment 21 6.4 Coating Site 22 7.Inspection Rule 22 7.1 Sampling 22 7.2 Inspection Item 22 7.3 Judgment Principle 22 8.Acceptance 22 Appendix A (Normative) Performance Requirements and Test Methods for Blade Coating Materials 24 A.1 Blade primer and topcoat 24 A.2 Leaf shaping putty and pinhole putty 25 A.3 Blade Leading Edge Protective Paint 26 Appendix B (Normative) Performance Requirements and Test Methods for Coatings on Parts Other Than Blades 28 B.1 Solvent-based coatings for parts other than blades 28 B.2 Water-based coating for parts other than blades 30

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document supersedes GB/T 31817-2015 "Technical Specification for Protective Coating of Wind Power Generation Facilities" and is consistent with GB/T 31817-2015. Compared to previous versions, aside from structural adjustments and editorial changes, the main technical changes are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2015 edition); b) Terms and definitions have been changed (see Chapter 3, Chapter 3 of the.2015 edition); c) The classification has been changed (see Chapter 4, Chapter 4 of the.2015 edition, Appendix A); d) The basic requirements for painting contractors have been removed (see section 5.1 of the.2015 edition); e) The coating system requirements have been changed (see 5.1, Appendix A, Appendix B, 5.2 and 5.3 of the.2015 edition); f) The painting process requirements have been changed (see 5.2, 5.4 in the.2015 edition); g) The test methods for coating materials have been changed (see 6.1, Appendix A, Appendix B, Appendix B of the.2015 edition); h) The testing methods for the coating system have been changed (see 6.2, 6.1 in the.2015 edition); i) The surface treatment test method has been changed (see 6.3, 6.2 in the.2015 edition); j) The field testing method for the coating has been changed (see 6.4, 6.3 in the.2015 edition); k) The method for determining the content of silicon-oxygen bonds in the base material has been removed (see Appendix C of the.2015 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Coatings and Pigments (SAC/TC5). This document was drafted by. CNOOC Changzhou Coatings & Chemicals Research Institute Co., Ltd., Tianjin Lighthouse Coatings Industry Development Co., Ltd., and Yejianxin. Materials Co., Ltd., Jotun Paint (Zhangjiagang) Co., Ltd., Jiangsu Lanling Polymer Materials Co., Ltd., and Sinoma Science & Technology Wind Turbine Blade Co., Ltd. Limited Liability Company, Goldwind Technology Co., Ltd., Guohengxin (Changzhou) Testing and Certification Technology Co., Ltd., Mingyang Smart Energy Group Co., Ltd. Company, Yunda Energy Technology Group Co., Ltd., Suzhou Tianshun Wind Power Equipment Co., Ltd., Guodian Xiangshan Offshore Wind Power Co., Ltd., Shandong Zhong Chetongli Steel Structure Co., Ltd., Three Gorges New Energy Offshore Wind Power Operation and Maintenance Jiangsu Co., Ltd., State Grid Electric Power Research Institute Co., Ltd., State Power Investment Corporation Nantong New Energy Co., Ltd., China Huaneng Group Clean Energy Technology Research Institute Co., Ltd., Hempel North Asia Investment Co., Ltd., Mecca Xincai New Materials Technology (Shanghai) Co., Ltd., Shanghai Hailong Saineng New Materials Co., Ltd., Xinhe New Materials Co., Ltd., Shanghai XiHua Testing Technology Co., Ltd., Chongqing Three Gorges Paint Co., Ltd., Northwest Yongxin Coatings Co., Ltd., Luoyang Shipbuilding Materials Research Institute (China Shipbuilding Group Corporation 725 Research Institute), Jiangsu Jinling Special Coatings Co., Ltd., AVIC Baimu New Materials Technology Engineering Co., Ltd. Limited Liability Company, Zhejiang Jiaogong Equipment Engineering Co., Ltd., Guangdong Ruizhi Environmental Protection Technology Co., Ltd., Huangshan Zhongbang Fuerdao Coatings Co., Ltd. Company, AkzoNobel Protective Coatings (Suzhou) Co., Ltd., Zhuzhou Jiuhua New Material Coating Industry Co., Ltd., Zhuzhou Feilu High-tech Materials Technology Co., Ltd., Daikin Fluorochemicals (China) Co., Ltd., PPG Industries Coatings (Kunshan) Co., Ltd., Nippon Paint Industrial Coatings (Shanghai) Co., Ltd. Limited Liability Company, Puyang Zhancheng New Materials Co., Ltd., Wuxi Federal Coatings Co., Ltd., Hunan Deqian New Materials Co., Ltd., Daban Technology (Changxing) Co., Ltd., Cangzhou Huibang Electromechanical Products Manufacturing Co., Ltd., Zhongde Xinya Building Materials Co., Ltd., Qingdao Zhongfu Fluorocarbon Materials Materials Co., Ltd., Hubei Ruilais Precision Technology Co., Ltd., Shaanxi Baotashan New Materials Technology Co., Ltd., Shandong Fuyu Xuanwei New Materials Technology Co., Ltd. Technology Co., Ltd., Shenzhen Qiongba Waterproof Technology Co., Ltd., Guangzhou Guanzhi New Material Technology Co., Ltd., China Metallurgical Heavy Industry (Xinjiang) Co., Ltd., Shenyang Yangjusheng New Material Technology Co., Ltd. The main drafters of this document are. Li Yunde, Wu Xuan, Chen Feng, Su Chunhai, Tan Weimin, Di Zhigang, Shi Youliang, Wang Xiaoran, Wu Duanhong, and Mou Shuxiang. Li Yan, Wei Debo, Su Hao, Wang Shuchuan, Gan Jin, Yao Gaining, Jiang Xuezhi, Cui Yuanyuan, Liu Qiang, Dai Haixiong, Yang Zhenbo, Qiu Xianfeng, Feng Gang, Xu Xiangning Gong Wenjing, Fan Guodong, Zhan Yao, Wang Kefeng, Huang Chengdong, Wang Yu, Xu Chunhua, Wang Bing, Yi Pan, He Qingdong, Zhang Bo, Guo Xu, Xu Jianwu, Zheng Hui, Zhao He, Zhao Hongxin, Ye Shuqing, Zhu Limin, Jiang Linfeng, Ye Guangyu, Zhang Kai, Song Zhaobin, Jiang Xiaoqiang, Luo Shaoxuan, Chen Jie, Liu Meng, Gao Jinhui, Yin Congying, Du Xueyang, Meng Qingshi, Zhu Huanan, Guan Chao, Gu Huiqi. This document was first published in.2015, and this is its first revision. Technical Specifications for Protective Coating of Wind Power Generation Facilities

1 Scope

This document specifies the classification, requirements, inspection rules, and acceptance procedures for protective coatings used on onshore and offshore wind power facilities, and describes the corresponding... Experimental methods. This document applies to the initial and maintenance coating of protective coatings for onshore and offshore wind power facilities. This document does not apply to the initial coating and maintenance coating of concrete substrates and fireproof parts of wind power generation facilities.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 1040.1 Determination of tensile properties of plastics - Part 1.General principles GB/T 1040.3 Determination of tensile properties of plastics - Part 3.Test conditions for films and sheets GB/T 1724-2019 Determination of grinding fineness of paints, varnishes and printing inks GB/T 1725 Determination of nonvolatile matter content in paints, varnishes and plastics GB/T 1727-2021 General methods for preparing paint films GB/T 1728 Determination of drying time of paint film and putty film GB/T 1732 Test method for impact resistance of paint film GB/T 1741 Test method for resistance to mildew in paint films GB/T 1766 Rating Method for Aging of Paint and Varnish Coatings GB/T 1768 Determination of abrasion resistance of paints and varnishes - Rotating rubber grinding wheel method GB/T 1865 Paints and varnishes - Artificial weathering and artificial radiation exposure - Filtered xenon arc radiation GB/T 3186 Sampling of raw materials for paints, varnishes and paints and varnishes GB/T 5206 Paints and Varnishes. Terms and Definitions GB/T 5210 Paints and varnishes - Pull-off adhesion test GB 6514 Safety Regulations for Painting Operations. Safety of Painting Processes and Ventilation GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 6742 Paints and varnishes - Bending test (cylindrical shaft) GB/T 6750 Determination of density of paints and varnishes - Specific gravity bottle method GB/T 6823 Ballast Tank Paint GB 7691 Safety Regulations for Painting Operations - General Rules for Safety Management GB/T 7790 Determination of resistance to cathodic disbondment of coatings of paints and varnishes exposed to seawater GB/T 8923.1 Visual assessment of surface cleanliness of steel before coating - Part 1.Uncoated steel Rust level and treatment level of the surface and the steel surface after complete removal of the original coating. GB/T 8923.3 Visual assessment of surface cleanliness of steel surfaces before coating - Part 3.Welds, edges and others Treatment level of surface defects in the area GB/T 9258.1 Abrasive grain size analysis for coated abrasives – Part 1.Grain size composition ...