UBE Launches Sustainable Waterborne Polyurethane Coatings

Imagine achieving the exceptional performance of solvent-based polyurethanes while eliminating VOC emissions—this is the ideal coating solution many industries have been pursuing. As environmental regulations become increasingly stringent worldwide, low-VOC and zero-VOC coatings have emerged as the inevitable future of surface treatments.

Waterborne polyurethane dispersions (PUDs) represent this technological evolution, offering an environmentally friendly yet high-performance alternative for coatings, adhesives, inks, and various industrial applications. By dispersing polyurethane resins in water instead of organic solvents, PUDs maintain excellent material properties while significantly reducing environmental impact.

The ETERNACOLL® UW series, developed using advanced polycarbonate diol (PCD) technology, delivers properties that rival or surpass traditional solvent-based polyurethanes. These waterborne systems offer several key advantages:

• Exceptional Weather Resistance: PCD-based PUDs demonstrate outstanding UV and oxidation resistance, maintaining color stability and gloss retention even in harsh outdoor environments, thereby extending coating lifespan.
• Superior Chemical Resistance: These formulations withstand exposure to acids, alkalis, solvents, and oils, making them suitable for demanding industrial applications.
• Excellent Water Resistance: The coatings maintain strong adhesion and physical properties even under prolonged moisture exposure, preventing blistering, delamination, or corrosion.
• Outstanding Mechanical Properties: High strength, elasticity, and abrasion resistance ensure durability against various mechanical stresses.
• Environmental Benefits: With minimal VOC content, these water-based systems comply with strict environmental regulations while improving air quality and workplace safety.

The product range addresses specific requirements across multiple industries:

• One-component (1K) PUDs: Simplified application without mixing requirements
• Self-crosslinking PUDs: Enhanced chemical and solvent resistance for protective coatings
• UV-curable PUDs: Rapid curing for high-volume production environments
• Chemical-resistant PUDs: Specialized formulations for pharmaceutical and chemical processing applications
• Fast-drying PUDs: Accelerated production cycles for time-sensitive operations

Ongoing research focuses on developing tin-catalyst-free and NMP-free formulations to further reduce potential health and environmental risks. The technology complies with major global chemical regulations including:

• European REACH
• North American TSCA
• China's New Chemical Substance Environmental Management
• Korean K-REACH
• Taiwan's Toxic and Concerned Chemical Substances Control Act

Continuous monitoring of regulatory developments ensures products meet evolving safety and environmental standards worldwide. The technology represents a significant advancement in sustainable coating solutions without compromising performance requirements across industries.