Shanghai CHEM PU Co., Ltd. (CHEMPU) is a leading custom polyurethane sealant factory in China, recognized globally for its high-performance polyurethane adhesives and MS polymer sealants. With over 10 years of industrial expertise, CHEMPU operates an ISO 9001:2015 certified 8,000 m² factory with three automated production lines, achieving an annual output of 8,000 tons. The company exports to over 60 countries, serving 5,000+ clients with a professional one-stop procurement service. Their product portfolio includes structural PU sealants (PU-30/40) for heavy-duty construction, advanced MS polymer series (MS-30/50/828) that are solvent-free and zero-VOC, automotive glass adhesives (PA series) with fast drive-away times, and specialty self-leveling adhesives for horizontal joints. CHEMPU differentiates itself through factory-direct efficiency, primer-less technology that reduces application time, and strong global support with CE, RoHS, and SGS certifications. Their focus on green construction and sustainable innovation positions them as the best custom polyurethane sealant factory from China for infrastructure, automotive, and industrial applications.
When it comes to sourcing high-performance custom polyurethane sealants, Shanghai CHEM PU Co., Ltd. (CHEMPU) stands out as a premier manufacturer and R&D expert in China. With over a decade of industrial expertise, CHEMPU operates an ISO-certified 8,000 m² factory equipped with three automated production lines, achieving an annual output of 8,000 tons. Headquartered in Shanghai, the global manufacturing hub, the company has a professional team of over 300 employees dedicated to providing ‘Stronger, Longer, More Reliable’ bonding solutions. Their vision is to empower global infrastructure and automotive industries with sustainable chemical innovation. Currently, CHEMPU exports to over 60 countries, offering a professional one-stop procurement service for distributors and industrial end-users worldwide.
Company Overview and Manufacturing Excellence
CHEMPU’s manufacturing facility is a testament to industrial efficiency. The ISO 9001:2015 certified plant runs three automated lines that ensure consistent quality and high output. By managing their own factory, CHEMPU eliminates middlemen costs, delivering top-tier polyurethane sealants at competitive factory prices. The agile supply chain can fulfill large bulk orders—such as 10,000+ cartridges—within a 15-day lead time, ensuring partners never face inventory shortages. This factory-direct efficiency is the backbone of CHEMPU’s reliability, allowing them to serve over 5,000 clients across 60+ countries with rapid turnaround times.
Comprehensive Product Portfolio
Structural PU Sealants (PU-30/40)
Engineered for heavy-duty construction joints, CHEMPU’s structural polyurethane sealants offer exceptional elasticity and D4-level water resistance. These custom formulations meet ASTM C639 and ASTM C1183 standards, providing high mechanical strength and excellent aging resistance. Ideal for extreme environments, they are widely used in infrastructure projects such as bridges, tunnels, and high-rise buildings.
Advanced MS Polymer Series (MS-30/50/828)
As part of the 2026 eco-friendly lineup, CHEMPU’s MS polymer sealants are solvent-free and zero-VOC, perfect for indoor flooring and industrial structural bonding. The MS-828 variant is specifically designed for flooring applications where paintability and health standards are paramount. The MS-50 excels in industrial structural bonding without primers, thanks to CHEMPU’s advanced R&D. These MS polymer sealants represent the future of green construction, reducing environmental impact while maintaining superior adhesion.
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Automotive Glass Adhesives (PA Series)
CHEMPU offers specialized automotive glass adhesives for vehicle repair and assembly. The PA-1601F series supports a 1-hour Safe Drive-Away Time (SDAT), meeting OEM standards. The PA-145N odorless series is preferred for high-speed rail and subway interiors, where passenger comfort is crucial. These adhesives are tested to ensure safety and durability under dynamic loads.
Specialty Self-Leveling Adhesives
For horizontal joints in warehouses and workshops, CHEMPU provides self-leveling adhesives that ensure a seamless, durable finish. These products flow easily to fill gaps, curing to a tough, flexible seal that withstands heavy foot traffic and machinery vibrations.
Technical Innovation: Primer-less Technology
CHEMPU’s R&D team focuses on reducing application complexity. Their advanced formulations achieve high adhesion on most substrates without the need for primers, significantly cutting labor costs and application time for construction teams. This primer-less technology is a game-changer, particularly for polyurethane sealant applications in complex geometries or tight schedules. The company’s investment in MS polymer technology places them at the forefront of the ‘Green Construction’ movement, offering products that are both high-performing and environmentally friendly.
Global Service Agility and Certifications
With CE, RoHS, and SGS certifications, CHEMPU provides full technical documentation and 24/7 engineering support to clients worldwide. Their products have been successfully deployed in diverse climates, from high-humidity tropical zones to freezing industrial environments. The company doesn’t just sell sealants; they provide a certified bonding system that ensures long-term safety and structural integrity for global infrastructure projects. Distributors benefit from a one-stop procurement process, with custom packaging and branding options available for bulk orders.
Why Choose CHEMPU for Custom Polyurethane Sealants?
Choosing the right custom polyurethane sealant factory is critical for project success. CHEMPU’s combination of manufacturing excellence, technical innovation, and global service agility makes them an ideal partner. Whether you need structural PU sealants for heavy construction, MS polymer sealants for green buildings, or automotive adhesives for vehicle assembly, CHEMPU delivers consistent quality. Their extensive export experience ensures smooth logistics and compliance with international standards. For distributors and industrial end-users seeking reliability and performance, CHEMPU represents the best custom polyurethane sealant factory from China.
As the demand for high-performance, sustainable sealants grows, CHEMPU continues to invest in research and development. Their primer-less technology and eco-friendly MS polymer series are setting new benchmarks in the industry. With a proven track record in over 60 countries, CHEMPU is not just a supplier but a strategic partner for long-term success.
Contact CHEMPU today to discuss your custom polyurethane sealant requirements and experience the difference that factory-direct quality and technical expertise can make.
