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GB/T 23446-2025: Spray polyurea waterproofing coating
Status: Valid
GB/T 23446: Evolution and historical versions
| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| GB/T 23446-2025 | English | 299 |
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Spray polyurea waterproofing coating
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| GB/T 23446-2009 | English | 229 |
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Spray polyurea waterproofing coating
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Standard similar to GB/T 23446-2025 GB/T 23440 | GB/T 19250 | GB 27789 | GB/T 23445 | Basic data | Standard ID | GB/T 23446-2025 (GB/T23446-2025) | | Description (Translated English) | Spray polyurea waterproofing coating | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q17 | | Classification of International Standard | 91.120.30 | | Word Count Estimation | 14,174 | | Date of Issue | 2025-10-31 | | Date of Implementation | 2026-05-01 | | Older Standard (superseded by this standard) | GB/T 23446-2009 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 23446-2025: Spray polyurea waterproofing coating---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 91.120.30
CCSQ17
National Standards of the People's Republic of China
Replaces GB/T 23446-2009
Sprayed polyurea waterproof coating
Published on 2025-10-31
Implemented on May 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
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 23446-2009 "Sprayed Polyurea Waterproof Coatings". Compared with GB/T 23446-2009, except for structural adjustments and...
Aside from editorial changes, the main technical changes are as follows.
a) The scope has been changed (see Chapter 1, Chapter 1 of the.2009 edition);
b) Added Type III products and corresponding technical requirements and test methods (see Chapters 4, 5, and 6);
c) Added categories for exposed and non-exposed products (see 4.1.3);
d) Increased product applications (see 4.2);
e) The general requirements have been removed (see Chapter 5 of the.2009 edition);
f) The technical requirements for some items of Type I products have been revised (see Tables 1, 2, and 3; Tables 1, 2, and 3 in the.2009 edition);
g) Technical requirements for elongation at break under low-temperature conditions and corresponding test methods have been added (see Table 1, 6.9.2);
h) The technical requirements for bonding strength under high and low temperature immersion cycles and the corresponding test methods have been added (see Table 1, 6.14.2);
i) Added peel strength technical requirements and corresponding test methods (see Tables 1 and 6.15);
j) The technical requirements for water absorption rate have been revised (see Table 1,.2009 edition);
k) The heating aging at constant elongation has been removed (see Table 2 in the.2009 edition);
l) Added technical requirements for combustion performance and corresponding test methods (see Tables 1 and 6.17);
m) Added water resistance technical requirements and corresponding test methods (see Tables 1 and 6.18);
n) Added technical requirements for artificial climate accelerated aging appearance and changed the corresponding test methods (see Table 2, 6.23,.2009 edition).
Table 2, 7.20);
o) The technical requirements for limits of hazardous substances and the corresponding test methods have been changed (see 5.3, 6.27, 6.3 and 7.24 in the.2009 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 Building Materials Federation.
This document is under the jurisdiction of the National Technical Committee on Standardization of Lightweight and Decorative Building Materials (SAC/TC195).
This document was drafted by. China Building Materials Suzhou Waterproofing Research Institute Co., Ltd., Building Materials Industry Technology Supervision and Research Center, and Qingdao Aierjia.
Jiaxin Materials Co., Ltd., Dayu Weiye (Beijing) International Technology Co., Ltd., Zhejiang Yuxi Corrosion Control Co., Ltd., China Water
Lishui Hydropower Research Institute, North China Electric Power Research Institute Co., Ltd., Xuzhou Shuangju Environmental Protection New Materials Co., Ltd., Zhejiang Jinfeng New Materials
Materials Technology Co., Ltd., China Building Materials Testing & Certification Group Suzhou Co., Ltd., Beixin Waterproofing Co., Ltd., Shundi High-Tech Materials Jiangsu Co., Ltd.
Company, Beijing Oriental Yuhong Waterproof Technology Co., Ltd., Jiangsu Langke Building Materials Technology Co., Ltd., Qingdao Greenworld New Material Technology Co., Ltd.
The company, Beixin Waterproofing (Sichuan) Co., Ltd., Zhengzhou Anyuan Engineering Technology Co., Ltd., Zhejiang Hydraulic Construction Technology Co., Ltd., and Tianjin Senju.
Ke Sealing Coating Materials Co., Ltd., Yuyin Technology Co., Ltd., Liaoning Jiuding Hongtai Waterproof Technology Co., Ltd., Shanghai Yuhong (Jinhu) Waterproof
Technology Co., Ltd., China Water Resources and Hydropower Eleventh Engineering Bureau Co., Ltd., Shandong Shangzheng New Material Technology Co., Ltd., Yantai Wanchuang Innovation
Materials Co., Ltd., Zhongpo (Beijing) New Materials Technology Co., Ltd., Jinan Jinghuabangwei Polyurethane Equipment Co., Ltd., Shenyang Jusheng New Materials
Technology Co., Ltd., Zhongcheng Zhixin Engineering Consulting Group Co., Ltd., Shijiazhuang Weishiqi New Materials Co., Ltd., Qingdao Ruitu New Materials
Technology Co., Ltd., Shuangta Coatings Technology Co., Ltd., Shandong Lianchuang New Materials Industry Co., Ltd., Shandong Century United New Materials Technology Co., Ltd.
The company, Shanghai Jianke Inspection Co., Ltd., Shanxi Provincial Academy of Building Research Group Co., Ltd., and Xinjiang Production and Construction Corps Water Conservancy and Hydropower Engineering Group Co., Ltd.
The company, Zibo Guruit New Materials Co., Ltd., Wuhan Hengxing Waterproof Materials Co., Ltd., Shandong Lanmeng Anticorrosion Technology Co., Ltd.
Hubei Juxin Hengxing Construction Engineering Co., Ltd.
The main drafters of this document are. Shen Chunlin, Yang Bin, Wang Baozhu, Li Bingqi, Wang Yufeng, Chu Jianjun, Chen Bin, Li Yanwei, Lian Lianyi, and Xing Chengxia.
Chang Shuangxi, Zhang Hong, Ouyang Lu, Kang Jiefen, Meng Yanan, Zhu Xiaohua, Jiang Yumin, Li Wanyong, Wang Wei, Kuang Rendeng, Zhou Zihu, Li Shiran, Jiang Feiyi
Qi Feng, Zhao Peng, Yu Yuefeng, Yu Hao, Tian Yihang, Gao Yan, Shi Jiulong, Huang Junwei, Jing Xiaodong, Gao Jue, Dong Jinglei, Deng Qiang, Zhang Weifeng, Meng Qingshi
Yu Yanjun, Zhang Anzhi, Xu Xianglin, Wei Zhongchuan, Lu Ling, Zhai Xianming, Wang Luohua, Liu Nailin, Feng Qiang, Zhao Tongxin, Fang Hongyuan, Zhang Jun, Wang Xiaoli
Wen Ximei, Wang Dewei, Wei Haojie, Lü Shining, Bian Bing, Zhang Wei, Bu Jipeng, and Mou Chenzhong.
The release history of this document and the document it replaces is as follows.
---First published in.2009 as GB/T 23446-2009;
---This is the first revision.
Sprayed polyurea waterproof coating
1 Scope
This document specifies the classification, uses and marking, technical requirements, inspection rules, and labeling, packaging, and transportation of sprayed polyurea waterproof coatings.
Storage, and the corresponding experimental methods are described.
This document applies to sprayed polyurea waterproof coatings used in construction projects.
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 528 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber
GB/T 529 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, right-angled and crescent-shaped specimens)
GB/T 531.1 Test methods for indentation hardness of vulcanized or thermoplastic rubber – Part 1.Shore hardness tester method (Shore hardness)
GB/T 1768 Determination of abrasion resistance of paints and varnishes - Rotating rubber grinding wheel method
GB/T 2790 Adhesives - 180° Peel Strength Test Method - Flexible Materials vs. Rigid Materials
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB 8624 Classification of fire performance of building materials and products
GB/T 8626 Test Methods for Flammability of Building Materials
GB/T 16777-2008 Test Methods for Waterproof Coatings for Buildings
GB/T 18244 Aging Test Method for Building Waterproofing Materials
GB/T 20624.2 Rapid deformation (impact resistance) test of paints and varnishes - Part 2.Drop hammer test (small area impact)
GB 45671 Safety Technical Specification for Building Waterproof Coatings
JC/T 547 Ceramic Tile Adhesives
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Using isocyanate compounds as component A and amine compounds as component B, a spray application process is employed to mix the two components and allow for rapid reaction.
Reactive polymer waterproof coating that cross-links and cures to form a film.
Note 1.Component A is an isocyanate monomer, polymer, derivative, prepolymer, or semi-prepolymer. Prepolymers or semi-prepolymers are composed of amino- or hydroxyl-terminated compounds.
It is prepared by reacting with isocyanates. Isocyanates can be either aromatic or aliphatic.
Note 2.When component B is an amine compound composed of terminal amino resins and amino chain extenders, it is usually called "spray-applied pure polyurea waterproof coating"; component B is...
When a compound containing amines is composed of hydroxyl-terminated resins and amino chain extenders, it is usually called a "sprayed polyurethane urea waterproof coating".
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