CHEMPU (Shanghai CHEM PU Co., Ltd.) is a leading Chinese manufacturer of high quality polyurethane sealants and MS polymer adhesives. With over 10 years of expertise, an ISO-certified 8,000 m² factory, and three automated production lines, the company produces 8,000 tons annually and exports to 60+ countries. Its product portfolio includes structural PU sealants (PU-30/40) with D4 water resistance, advanced MS polymer series (MS-30/50/828) that are solvent-free and zero-VOC, automotive glass adhesives (PA series) with 1-hour SDAT, and specialty self-leveling adhesives. CHEMPU differentiates through factory-direct efficiency, R&D-driven primer-less technology, and global service agility. Products meet ASTM C639 and C1183 standards, with CE, RoHS, and SGS certifications. The company provides 24/7 engineering support and 15-day lead times for bulk orders. CHEMPU’s vision is to empower global infrastructure and automotive industries with sustainable chemical innovation, making it a trusted partner for high-performance bonding solutions.
When it comes to high quality polyurethane sealant from China, one name stands out: CHEMPU (Shanghai CHEM PU Co., Ltd.). As a globally recognized manufacturer and R&D expert specializing in high-performance polyurethane (PU) adhesives and MS polymer sealants, CHEMPU has been delivering reliable bonding solutions for over a decade. With a modern, ISO 9001:2015 certified 8,000 m² factory equipped with three automated production lines, the company achieves an annual output of 8,000 tons, ensuring consistent supply for distributors and industrial users across 60+ countries.
Why Choose CHEMPU Polyurethane Sealants?
CHEMPU’s product portfolio is designed for extreme environments, offering exceptional elasticity, aging resistance, and adhesion. The company’s vision is to empower global infrastructure and automotive industries with sustainable chemical innovation. From structural PU sealants to advanced MS polymer series, every product is tested to meet ASTM C639 and ASTM C1183 standards, guaranteeing high mechanical strength and long-term durability.
Core Product Lines
1. Structural PU Sealants (PU-30/40)
Engineered for heavy-duty construction joints, these sealants provide D4-level water resistance and outstanding elasticity. Ideal for concrete, metal, and stone substrates, they are perfect for expansion joints in bridges, roads, and building facades where high quality polyurethane sealant is essential.
2. Advanced MS Polymer Series (MS-30/50/828)
CHEMPU’s 2026 eco-friendly lineup is solvent-free and zero-VOC, meeting green building standards. The MS-50 variant offers superior structural bonding for industrial applications, while MS-828 is specially formulated for indoor flooring, offering paintability and health compliance. This series represents the future of MS polymer sealants in construction.
3. Automotive Glass Adhesives (PA Series)
The PA-1601F series supports a 1-hour Safe Drive-Away Time (SDAT), meeting OEM standards for vehicle repair. For high-speed rail and subway interiors, the PA-145N odorless series provides a comfortable and safe environment. These adhesives are a testament to CHEMPU’s innovation in polyurethane adhesive technology.
4. Specialty Self-Leveling Adhesives
Designed for horizontal joints in warehouses and workshops, these adhesives ensure a seamless, durable finish. Their self-leveling property reduces labor time and provides a uniform seal, making them a preferred choice for large-area applications.
Manufacturing Excellence & Technical Innovation
CHEMPU differentiates itself through three core pillars: Manufacturing Excellence, Technical Innovation, and Global Service Agility. By managing its own factory, the company eliminates middlemen costs, offering top-tier quality at competitive factory prices. The agile supply chain can deliver bulk orders (e.g., 10,000+ cartridges) within a 15-day lead time, ensuring partners never face inventory shortages.
Research and development are at the heart of CHEMPU. The lab focuses on reducing application complexity. One breakthrough is the primer-less technology, which allows high adhesion on most substrates without the need for primers. This significantly reduces labor costs and application time for construction teams. The company’s focus on MS Polymer technology positions it at the forefront of the ‘Green Construction’ movement, offering solvent-free and zero-VOC solutions that meet stringent environmental regulations.
Global Reach & Reliability
CHEMPU’s products have been successfully deployed in diverse climates—from high-humidity tropical zones to freezing industrial environments. With CE, RoHS, and SGS certifications, the company provides full technical documentation and 24/7 engineering support to over 5,000 clients across 60+ countries. Each shipment is accompanied by detailed instructions, and the team is always ready to assist with technical questions. This global service agility ensures that every customer receives the support they need for long-term project success.
Applications of Polyurethane Sealants
- Construction: Structural glazing, curtain wall sealing, expansion joints, roofing, and flooring.
- Automotive: Windshield bonding, glass encapsulation, and interior assembly.
- Industrial: Panel bonding, filter sealing, and general assembly of components requiring high strength and flexibility.
Quality & Standards
Every batch of CHEMPU sealant undergoes rigorous testing. The company adheres to international standards such as ASTM C639 (dynamic adhesion) and ASTM C1183 (extrusion rate). This ensures that every product delivers consistent performance, whether it’s a high quality polyurethane sealant for a skyscraper or an MS polymer sealant for a green building project. With over 300 employees dedicated to the motto ‘Stronger, Longer, More Reliable,’ CHEMPU is a trusted partner for distributors and end-users worldwide.
In summary, CHEMPU offers high quality polyurethane sealant from China that meets global standards. Its comprehensive product range, advanced R&D, and commitment to sustainability make it a top choice for demanding applications. For those seeking a reliable, factory-direct supplier with proven export experience, CHEMPU is the answer.
