Shanghai CHEM PU Co., Ltd. (CHEMPU) is a leading custom polyurethane sealant manufacturer based in China, with over 10 years of experience, an ISO-certified 8,000 m² factory, and an annual output of 8,000 tons. The company specializes in high-performance polyurethane (PU) adhesives and MS polymer sealants, serving 5,000+ clients across 60+ countries. CHEMPU’s product portfolio includes structural PU sealants (PU-30/40) for heavy-duty joints, advanced MS polymer series (MS-30/50/828) with zero-VOC and solvent-free formulations, automotive glass adhesives (PA series) with 1-hour SDAT, and specialty self-leveling adhesives for horizontal joints. The company differentiates itself through factory-direct efficiency, primer-less technology, and global service agility, with certifications like CE, RoHS, and SGS. Custom formulations are tailored to extreme environments, ensuring long-term durability and sustainability. CHEMPU’s commitment to R&D and green construction makes it the best choice for custom polyurethane sealants in construction, automotive, and industrial applications.
Introduction to CHEMPU: A Global Leader in Polyurethane Sealants
When it comes to sourcing high-performance polyurethane sealants, China has emerged as a manufacturing powerhouse, and among its top players is Shanghai CHEM PU Co., Ltd., commonly known as CHEMPU. With over a decade of industrial expertise, CHEMPU has positioned itself as a globally recognized manufacturer and R&D specialist in polyurethane (PU) adhesives and MS polymer sealants. Headquartered in Shanghai—the global manufacturing hub—the company operates a modern, ISO-certified 8,000 m² factory equipped with three automated production lines, achieving an annual output of 8,000 tons. This scale allows CHEMPU to serve over 5,000 clients across 60+ countries, offering custom polyurethane sealant solutions that meet the most stringent performance standards.
The Importance of Custom Polyurethane Sealants in Modern Industries
Polyurethane sealants are critical for bonding and sealing in construction, automotive, and industrial applications. Unlike generic sealants, custom formulations are tailored to specific environmental conditions, such as extreme temperatures, high humidity, or exposure to chemicals. CHEMPU focuses on delivering bonds that are “Stronger, Longer, More Reliable”. Their custom polyurethane sealants are designed to withstand heavy-duty construction joints, automotive glass installations, and industrial structural bonding. By leveraging advanced MS polymer technology, CHEMPU offers solvent-free, zero-VOC options that align with green construction movements globally.
Comprehensive Product Portfolio
Structural PU Sealants (PU-30/40)
For heavy-duty construction joints, CHEMPU’s structural PU sealants provide exceptional elasticity and D4-level water resistance. These sealants are ideal for horizontal and vertical joints in buildings, bridges, and infrastructure projects. They meet ASTM C639 and ASTM C1183 standards, ensuring high mechanical strength and excellent aging resistance.
Advanced MS Polymer Series (MS-30/50/828)
The 2026 eco-friendly lineup of MS polymer sealants includes solvent-free and zero-VOC formulations. The MS-828 variant is perfect for indoor flooring applications, while the MS-50 is designed for industrial structural bonding where paintability and health standards are paramount. These sealants offer superior adhesion without primers, reducing labor costs and application time.
Automotive Glass Adhesives (PA Series)
CHEMPU’s PA series includes the PA-1601F, which supports a 1-hour Safe Drive-Away Time (SDAT) meeting OEM standards for vehicle repair. The PA-145N odorless series is preferred for high-speed rail and subway interiors, offering a safe and comfortable application environment. These adhesives provide strong bonds that withstand vibration and temperature changes.
Specialty Self-Leveling Adhesives
Designed for horizontal joints in warehouses and workshops, these self-leveling adhesives ensure a seamless, durable finish. They flow effortlessly into gaps, creating a watertight and dust-proof seal.
Why CHEMPU Stands Out as a Custom Manufacturer
| Core Pillar | Description |
|---|---|
| Manufacturing Excellence | Factory-direct efficiency with ISO 9001:2015 certification. Agile supply chain delivers bulk orders (e.g., 10,000+ cartridges) within 15 days lead time. |
| Technical Innovation | R&D-driven primer-less technology reduces application complexity. Focus on MS polymer for green construction. |
| Global Service Agility | Products deployed in diverse climates. CE, RoHS, SGS certifications. 24/7 engineering support to 5,000+ clients in 60+ countries. |
CHEMPU’s custom polyurethane sealants are manufactured under strict quality control. The company eliminates middlemen costs by managing its own facility, offering top-tier quality at competitive factory prices. With 300+ employees dedicated to innovation, CHEMPU continuously develops new formulations to meet evolving market demands.
Applications Across Industries
- Construction: Structural glazing, curtain walls, expansion joints, roof sealing.
- Automotive: Windshield bonding, interior assembly, panel sealing.
- Industrial: Machinery bonding, HVAC systems, container sealing.
- Transportation: High-speed rail, subway interiors, marine applications.
Commitment to Quality and Sustainability
CHEMPU’s commitment to quality is reflected in its certifications: ISO 9001, CE, RoHS, and SGS. All products undergo rigorous testing to ensure they meet international standards. The company’s focus on MS polymer technology aligns with the global shift toward environmentally friendly solutions. Their zero-VOC and solvent-free sealants contribute to healthier indoor air quality and reduced environmental impact.
Global Reach and Support
With exports to 60+ countries, CHEMPU has established a reputation for reliability. The company provides professional one-stop procurement for distributors and industrial end-users worldwide. Technical documentation, application guides, and 24/7 engineering support ensure that customers can confidently use CHEMPU products in demanding projects.
Conclusion
For businesses seeking a custom polyurethane sealant manufacturer from China, CHEMPU offers an unbeatable combination of quality, innovation, and service. Whether it’s structural PU sealants for high-rise buildings or advanced MS polymers for eco-friendly interiors, CHEMPU delivers tailored solutions that perform under pressure. With a decade of experience, a state-of-the-art factory, and a global distribution network, CHEMPU is truly the best partner for your bonding needs.
Contact CHEMPU today to discuss your custom polyurethane sealant requirements and experience the difference of a true manufacturing partner.
