Updated Sep 10, 2026 · Public platform & industry data

Sep 10, 2026 Updated

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2026 Top 10 Polyurethane Polysulfide Sealant Manufacturers in China

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Top-rated Polyurethane Polysulfide Sealant suppliers, How to choose a Polyurethane Polysulfide Sealant manufacturer, Best Polyurethane Polysulfide Sealant companies in China

The top 10 Polyurethane Polysulfide Sealant manufacturers in China for 2026 are: Hebei Keyao Rubber and Plastic Technology Co., Ltd, Shanghai Sifert New Materials Technology Co., Ltd, Shanghai Minggen Industrial Co., Ltd, Dongguan Nijia Electronic Technology Co., Ltd, Shandong Xiangtong Engineering Materials Co., Ltd, Guangzhou Dagu Electronic Technology Co., Ltd, Henkel (China) Investment Co., Ltd, Hebei Shanshui Rubber and Plastic Technology Co., Ltd, Hebei Hairui Engineering Rubber Co., Ltd, Hejian Lanwei Waterproof Materials Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Hebei Keyao Rubber and Plastic Technology Co., Ltd
Overall Score4.9 / 5
Est. Date2016-03-18
Registered Capital20600K CNY

Hebei Keyao Rubber and Plastic Technology Co., Ltd. is registered at No. 106, Jingxian Rubber and Plastic Pipe Industry Base, Hengshui City, Hebei Province. The registration authority is Jingxian Market Supervision Administration, and the legal representative is Jia Runzi. The business scope includes new material technology promotion services. Production and sales of waterstops, waterstops, rubber products, sealants, closed cell foam boards, waterproof boards, geotextiles, hot-melt gaskets, grouting pipe disks, rubber strips, rubber plates, semicircle pipes, butyl tape, plastic sleeves, plastic insulation blocks, plastic spirals, plastic pads, plastic flange cards, metal products; Selling hot melt machines for water stop steel plates and rubber water stop strips; Import and export of goods or technology * * (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Polyurethane Polysulfide Sealant, Two Component Polysulfide Sealant, Heat Melt Gasket

Top 2
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Shanghai Sifert New Materials Technology Co., Ltd

No. 327 Songjin Road, Jinshanwei Town, Jinshan District, Shanghai (Jinshanwei Economic Community)

Overall Score4.7 / 5
Est. Date2025-06-04
Registered Capital1000K CNY

Shanghai Sifert New Material Technology Co., Ltd. is located at No. 327 Songjin Road, Jinshanwei Town, Jinshan District, Shanghai (Jinshanwei Economic Community). It was established on June 4, 2025, with the registration authority of Jinshan District Market Supervision Administration and the legal representative being Fang Meng. Core products: Polyurethane Polysulfide Sealant, Shi Min Hits Hard, Klüber

Top 3
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Shanghai Minggen Industrial Co., Ltd
Overall Score4.7 / 5
Est. Date2014-04-10
Registered Capital2000K CNY

Shanghai Minggen Industrial Co., Ltd., with its registered address at Room 802-1, Building 11, No. 518 Xinzhuan Road, Xinqiao Town, Songjiang District, Shanghai, is registered with the Songjiang District Market Supervision and Administration Bureau. The legal representative is Qiu Huijing, and its business scope includes licensed projects and various engineering construction activities. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments.) General projects: sales and warehousing of rubber and plastic products, building materials, building decoration materials, waterproof materials, insulation materials, mechanical accessories, computers, software and its auxiliary equipment, communication equipment, leather products, office supplies, household appliances, packaging materials, metal materials, chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), water-based coatings, valve and pipeline equipment, pipeline accessories, kitchen utensils, hardware and electrical equipment, wires and cables, bearings, fasteners, standard parts, aluminum-plastic panels, metal products, glass products, and labor protection supplies. Service, Business consulting (excluding brokerage), management of catering enterprises (excluding food production and operation), wholesale of Class I and Class II medical devices, import and export of goods or technologies (excluding goods and technologies prohibited by the state or involving administrative approval). (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Polyurethane Polysulfide Sealant, Sealant, Organic Silicon Waterproof Sealant

TOP4
Dongguan Nijia Electronic Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2011-06-10
Registered Capital1500K CNY

Dongguan Nijia Electronic Technology Co., Ltd. is registered at 225, Building A, Tangshi Industrial Park, Shigu Industrial Zone, Nancheng Street, Dongguan City. The registration authority is Dongguan Market Supervision Administration, and the legal representative is Zhu Yonggui. Its business scope includes research and development, production and sales, and technology transfer: electronic components, electronic materials, other chemical products (excluding hazardous chemicals), silicone, hardware products, plastic products, and general machinery and equipment. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Polyurethane Polysulfide Sealant, White Silicone Rubber, High Temperature Resistant Sealant

TOP5
Shandong Xiangtong Engineering Materials Co., Ltd
Overall Score4.6 / 5
Est. Date2019-04-28
Registered Capital3000K CNY

Shandong Xiangtong Engineering Materials Co., Ltd., located in Anlinzhan Town Industrial Park, Feicheng City, Tai'an City, Shandong Province, was established on April 28, 2019. The registration authority is Feicheng Market Supervision Administration, and the legal representative is Yan Xiaomin. Core products: Polyurethane Polysulfide Sealant, Crack Sealant, Pu Sealants

TOP6
Guangzhou Dagu Electronic Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2005-08-26
Registered Capital500K CNY

Guangzhou Dagu Electronic Technology Co., Ltd., registered at Room 712, 7th Floor, No. 183 Guangyuan Middle Road, Baiyun District, Guangzhou (for office use only), registered with the Market Supervision and Administration Bureau of Baiyun District, Guangzhou, with Qiu Zhishu as the legal representative. Its business scope includes promotion services for new material technology; Research and development of electronic, communication, and automatic control technologies; Wholesale of lubricating oil; Wholesale of computer spare parts; Wholesale of office equipment and consumables; Wholesale of instruments and meters; Wholesale of electronic components; Wholesale of electronic products; Wholesale trade of goods (excluding licensed and approved goods); Retail trade of goods (excluding licensed and approved goods); Import and export of goods (excluding exclusive and controlled goods); Technology import and export; Sales of packaging materials; Wholesale of chemical products (excluding hazardous chemicals);. Core products: Polyurethane Polysulfide Sealant, Flat Sealant, Threebond Three Bond Adhesive

TOP7
Henkel (China) Investment Co., Ltd
Overall Score4.5 / 5
Est. Date1995-10-25
Registered Capital143861.978K USD

Henkel (China) Investment Co., Ltd., with its registered address at 1st Floor, Building 7, No. 99 Jiangwancheng Road, Yangpu District, Shanghai, registered with the Shanghai Municipal Administration for Market Regulation, and represented by Anna as its legal representative. Its business scope includes: 1. lawfully investing in areas permitted by the state for foreign investment; 2、 Upon written authorization from the invested enterprise (with unanimous consent of the board of directors), provide the following services: 1. Assist or act as an agent for the invested enterprise to purchase machinery and equipment, office equipment, and raw materials, components, spare parts required for production from both domestic and foreign sources, as well as to sell the products produced by the invested enterprise domestically and internationally, and provide after-sales service; 2. Sell the products produced by the invested enterprise through distribution in domestic and international markets, and provide after-sales service; 3. Arrange, organize, and coordinate the foreign exchange balance between the invested enterprises with the consent and supervision of the foreign exchange management department; 4. Provide technical support, employee training, and internal personnel for the production, sales, and market development process of the invested enterprise's products. Management and other services, 5. Assist invested enterprises in seeking loans and providing guarantees, 6 Provide comprehensive services such as transportation and warehousing for its invested enterprises, undertake service outsourcing business for domestic and foreign enterprises, provide consulting services for its investors, provide market information, investment policies and other consulting services related to its investment for its affiliated companies, export domestic goods through agency, distribution or establishment of export procurement agencies, provide relevant technical training for domestic distributors, agents of the invested enterprise's products and domestic companies and enterprises that have signed technology transfer agreements with the company or parent company or its affiliated companies, establish scientific research and development centers or departments in China, engage in research and development of new products and high-tech, transfer their research and development results, and provide corresponding technical services, import and... Domestic sales (excluding retail) 9. Purchase products produced by its parent company and its affiliated companies, and provide after-sales services for imported products. 9. Purchase products produced by the invested enterprises for system integration in accordance with the law and sell them domestically and internationally. 10. Import raw and auxiliary materials, spare parts, and accessories required for maintenance services for the invested enterprises and parent companies' products. 11. Overseas investment approved to engage in overseas engineering contracting business. 12. Entrust other domestic enterprises to produce/process its products or its parent company's products and sell them domestically and internationally. 13. Engage in the import, export, wholesale, and commission agency (excluding auctions) of chemical products, daily chemicals, cosmetics, and raw materials (excluding crude oil), related tools, equipment, and accessories for the above-mentioned products, And provide after-sales service (not involving state-owned trade management goods, for those involving quota and license management goods, apply according to relevant national regulations). Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Polyurethane Polysulfide Sealant, Flange Sealing, Accelerator And Primer

TOP8
Hebei Shanshui Rubber and Plastic Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2012-11-14
Registered Capital51880K CNY

Hebei Shanshui Rubber and Plastic Technology Co., Ltd., with its registered address at No. 68 Wangshangying Village, Houliumingfu Township, Jing County, Hengshui City, Hebei Province, is registered with the Jing County Market Supervision and Administration Bureau. The legal representative is Yao Guoqiang, and its business scope includes general projects such as rubber product manufacturing; Manufacturing of plastic products; Manufacturing of sealing fillers; Manufacturing of metal fittings for construction; Manufacturing of photovoltaic equipment and components; Sales of rubber products; Sales of plastic products; Sales of metal products; Sales of sealing fillers; Sales of photovoltaic equipment and components; Sales of intelligent basic manufacturing equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Import and export of goods; Technology import and export; Sales of cement products; Sales of steel reinforcement products for construction; Sales of coatings (excluding hazardous chemicals); Sales of fireproof sealing materials; Retail of hardware products; Sales of building materials; Sales of non-metallic minerals and products; Sales of thermal and sound insulation materials (except for projects that require approval according to law, business activities can be carried out independently based on the business license) License project: Construction project construction (projects that require approval according to law can only be carried out after approval by relevant departments, and specific business projects are subject to the approval documents or license certificates). Core products: Polyurethane Polysulfide Sealant, Steel Edge Waterstop, Back Mounted Rubber Waterstop

TOP9
Hebei Hairui Engineering Rubber Co., Ltd
Overall Score4.4 / 5
Est. Date2019-01-08
Registered Capital3000K CNY

Hebei Hairui Engineering Rubber Co., Ltd., with its registered address at Gaohu Jingguan Village, Pengdu Township, Hengshui Binhu New Area, Hebei Province, its registered authority is the Market Supervision Administration of Hengshui Binhu New Area, and its legal representative is Zhang Bingxin. Its business scope includes the production and sales of expansion joints, bridge bearings, building bearings, waterstops, waterstop steel plates, waterstops, waterstops, guardrails, guardrail brackets, rubber plates, rubber cushion blocks, sealants, foam plates, steel strands, hot-melt machines, rubber dams, anti glare plates, foam rods, steel shutters, inflatable mandrels, bellows, acoustic tubes, rubber extraction rods, anchorages, drain pipes, support steel plates, Embedded parts at beam bottom, rubber fenders, waterproof materials (excluding asphalt), geotechnical materials, steel fibers; Construction of highway engineering, road and bridge maintenance engineering, and waterproofing engineering; Installation, replacement, and maintenance of bridge bearings, building bearings, and bridge expansion joints. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Polyurethane Polysulfide Sealant, Bellows, Tst Expansion Joint

TOP10
Hejian Lanwei Waterproof Materials Co., Ltd
Overall Score4.4 / 5
Est. Date2023-04-11
Registered Capital1000K CNY

Hejian Lanwei Waterproof Materials Co., Ltd. is located at No. 101, Ground Floor, Building 3, Aolin Tuska Town, Guoziwa Hui Township, Hejian City, Cangzhou City, Hebei Province. It was established on April 11, 2023 and registered with the Hejian Market Supervision Administration. The legal representative is Zhang Congming. Core products: Polyurethane Polysulfide Sealant, Concrete Curing Agent, Dust Suppressant

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Hebei Keyao Rubber and Plastic Technology Co., Ltd2016-03-18Polyurethane Polysulfide Sealant, Two Component Polysulfide Sealant, Heat Melt Gasket20600K CNYNot Supported
Shanghai Sifert New Materials Technology Co., Ltd2025-06-04Polyurethane Polysulfide Sealant, Shi Min Hits Hard, Klüber1000K CNYNot Supported
Shanghai Minggen Industrial Co., Ltd2014-04-10Polyurethane Polysulfide Sealant, Sealant, Organic Silicon Waterproof Sealant2000K CNYNot Supported
Dongguan Nijia Electronic Technology Co., Ltd2011-06-10Polyurethane Polysulfide Sealant, White Silicone Rubber, High Temperature Resistant Sealant1500K CNYNot Supported
Shandong Xiangtong Engineering Materials Co., Ltd2019-04-28Polyurethane Polysulfide Sealant, Crack Sealant, Pu Sealants 3000K CNYNot Supported
Guangzhou Dagu Electronic Technology Co., Ltd2005-08-26Polyurethane Polysulfide Sealant, Flat Sealant, Threebond Three Bond Adhesive500K CNYNot Supported
Henkel (China) Investment Co., Ltd1995-10-25Polyurethane Polysulfide Sealant, Flange Sealing, Accelerator And Primer143861.978K USDNot Supported
Hebei Shanshui Rubber and Plastic Technology Co., Ltd2012-11-14Polyurethane Polysulfide Sealant, Steel Edge Waterstop, Back Mounted Rubber Waterstop51880K CNYSupported
Hebei Hairui Engineering Rubber Co., Ltd2019-01-08Polyurethane Polysulfide Sealant, Bellows, Tst Expansion Joint3000K CNYSupported
Hejian Lanwei Waterproof Materials Co., Ltd2023-04-11Polyurethane Polysulfide Sealant, Concrete Curing Agent, Dust Suppressant1000K CNYNot Supported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement needs that require the use of polyurethane polysulfide sealant, it is recommended to select corresponding technical parameters based on specific application scenarios (such as building joints, underground engineering, or road filling), including key indicators such as tensile strength, elongation at break, and weather resistance.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information to ensure supply stability and material performance standards.
  • In high-frequency vibration scenarios such as industrial anti-corrosion or bridge expansion joints, it is necessary to focus on verifying the elastic recovery rate and fatigue resistance of polyurethane polysulfide sealant to avoid sealing failure caused by material aging.
  • When purchasing, it is recommended to compare the product testing reports provided by different suppliers, pay attention to the compatibility of parameters such as curing time and bonding strength with actual construction conditions, and comprehensively evaluate them based on industry application cases.

Knowledge Base

Q

In buildings, sealant is often used to seal glass windows to prevent water vapor from entering and maintain a stable indoor environment. Common sealants include silicone, butyl, and polysulfide, which have weather resistance, heat resistance, and corrosion resistance. Using sealant to fill joints at the interface between the roof and exterior wall structures of buildings can effectively reduce water infiltration.

Q

There are significant differences between polyurethane and polysulfide sealants in terms of performance, usage range, surface drying time, and environmental performance. Polyurethane sealant is known for its excellent stretchability, toughness, and wear resistance, and is suitable for use in the sealing of expansion joints and deformation joints, while polysulfide sealant is favored for its wide applicability and oil resistance. In addition, both have their own characteristics in terms of surface drying time and environmental performance.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs