California, US – September 11, 2025: SIWO US Inc., a frontrunner in environmentally responsible coating technologies, has announced the expansion of its product portfolio to include a new generation of NMP- and DMAC-free waterborne polyurethanes. This move further cements the company’s leadership in sustainable chemistry, responding directly to growing industry demand for safer, high-performance alternatives to solvent-based coatings.

Headquartered in the United States, SIWO US Inc. specializes in waterborne polyurethane dispersions (PUDs), offering advanced solutions for sectors ranging from textiles and leather to industrial coatings, wood finishes, and packaging. The latest addition to their lineup—PUDs that are completely free from N-Methyl-2-pyrrolidone (NMP) and Dimethylacetamide (DMAC)—underscores the company’s long-standing commitment to innovation, regulatory compliance, and environmental health.

Both NMP and DMAC have come under increased regulatory scrutiny in recent years, as mounting evidence suggests serious health and environmental risks associated with prolonged exposure. Many global manufacturers are now being required to reformulate products to meet stricter emission standards and workplace safety regulations. By proactively offering NMP- and DMAC-free solutions, SIWO US Inc. enables manufacturers to stay ahead of compliance mandates without sacrificing performance.

“Our mission has always been rooted in sustainable development,” said Dr. Yuchun Wei, CEO of SIWO US Inc. “We recognize that the global coatings industry is at a pivotal point where safety, environmental responsibility, and high performance must go hand-in-hand. With these new formulations, we’re proud to lead the charge toward a cleaner, safer future for coatings and adhesives.”

The new solvent-free polyurethane dispersions offer the same exceptional durability, abrasion resistance, chemical tolerance, and adhesion strength that SIWO is known for—while eliminating the need for hazardous co-solvents. These formulations are especially ideal for sensitive applications like interior automotive parts, consumer goods, and wearable textiles, where emissions and contact safety are top priorities.

Built on a philosophy of rigorous research and continual refinement, SIWO US Inc. carefully develops each product to exceed both client expectations and industry standards. Every new formula undergoes a thorough testing process before, during, and after production to ensure consistency, longevity, and environmental safety. The company’s quality systems are backed by ISO 9001:2015 and ISO 14001:2015 certifications, a reflection of their total commitment to operational and environmental excellence.

What makes the new NMP- and DMAC-free line especially versatile is its compatibility across multiple substrates and applications. Whether it’s synthetic leather, waterproof textiles, wooden surfaces, plastics, or industrial metals, these dispersions deliver the protective, flexible film characteristics that end users depend on. They are engineered for water and UV resistance, offer high tensile strength, and maintain visual clarity and finish integrity across a broad range of climates and uses.

“Customers today want coatings that are not only effective but responsibly made,” Dr. Wei added. “With this launch, we are offering more than a product—we’re offering peace of mind. Manufacturers no longer have to compromise between environmental safety and technical performance. With SIWO, they get both.”

The company’s sustainability-centric R&D model also prioritizes the use of renewable and water-based systems over traditional petrochemical-heavy alternatives. This approach significantly reduces VOC content and toxic emissions, helping manufacturers meet LEED, REACH, and other green building or product certifications. It’s this commitment to cleaner chemistry that has earned SIWO US Inc. global recognition as an innovation-driven partner in the coatings and adhesives markets.

Beyond formulations, SIWO US Inc. distinguishes itself through a client-first approach to technical support and collaboration. Their in-house chemists and formulation experts work directly with customers to co-create tailored solutions that align with specific performance requirements, manufacturing processes, and compliance needs. This consultative model ensures product performance isn’t just lab-proven—it’s field-proven.
As the demand for safer materials grows globally, SIWO’s newest expansion marks a critical step forward—not just for the company, but for the industries it serves. From construction materials and consumer goods to textiles, flexible packaging, and beyond, the transition to solvent-free polyurethanes is no longer a luxury; it’s a necessity. SIWO US Inc. is meeting that necessity with a future-ready solution today.

The company continues to invest in emerging technologies and sustainability-driven R&D, with a focus on developing even more biodegradable, bio-based, and non-toxic systems in the years to come. This relentless pursuit of better—backed by science, industry collaboration, and environmental foresight—is what positions SIWO as more than a chemical supplier; it’s a partner for transformation.

As regulations tighten and sustainability becomes the new business standard, SIWO US Inc. remains at the forefront of redefining what polyurethane coatings can and should be. Their latest product expansion not only meets a critical market need—it sets a new benchmark for performance and safety in waterborne polyurethane chemistry.

About SIWO US Inc.
SIWO US Inc. is a global manufacturer of premium waterborne polyurethane dispersions, specializing in eco-friendly coatings and adhesives across textile, leather, wood, plastic, and industrial applications. Known for its commitment to sustainable development, SIWO develops high-performance PUDs that eliminate harmful solvents like NMP and DMAC. With ISO-certified quality systems and an innovation-driven R&D team, the company creates solutions that balance durability, aesthetic appeal, and environmental safety. Backed by deep technical support and industry expertise, SIWO partners with manufacturers around the world to enable cleaner, more compliant, and more sustainable production practices.

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