SiwoPUD®-5083

When your synthetic leather application demands durability, flexibility, and consistent foam performance, SiwoPUD-5083 steps in as the high-performance polyurethane dispersion built to exceed expectations. This aqueous, aliphatic polyurethane dispersion is formulated using polyether diol, offering not only excellent foamability but also superior endurance under stress—perfect for resilient, high-wear synthetic leather applications.

Supplied at a 50±1% solid content in water, SiwoPUD-5083 is designed for ease of use and integration into foaming systems. With a translucent-white appearance, pH value between 7.0 and 9.5, and viscosity ≤1000 mPa·s, this dispersion is well-balanced for processing stability and consistent performance. Most importantly, it is NMP-, NEP-, and DMAC-free, making it a safer, more sustainable option for manufacturers seeking low-VOC and regulatory-compliant coatings.

What makes SiwoPUD-5083 stand out in synthetic leather production is its ability to produce a highly elastic and durable film. The resulting film exhibits 1000% elongation, a tensile strength of 15.5 MPa, and a 100% modulus of 1.3 MPa, creating an ideal balance between flexibility and strength. Its non-yellowing formulation ensures long-term aesthetic appeal, while its fast drying and excellent shear stability make it a favorite in production environments that demand speed and consistency.

This polyurethane dispersion also excels where others fall short—it delivers excellent resilience, superior zigzag resistance, and impressive alkali and low-temperature resistance. Additionally, it offers outstanding dry and wet stripping properties, ensuring the coating holds up under real-world stresses and repeated wear.

Easy to mechanically foam, SiwoPUD-5083 is engineered specifically for the foaming layer in synthetic leather, where both structural integrity and finish quality matter. Whether you’re developing upholstery, footwear, or industrial textiles, this is the dispersion that delivers performance without compromise.

Just store it right—frost-free, sealed containers only, as this dispersion contains no preservative. For a polyurethane solution that meets rigorous technical demands while staying environmentally mindful, SiwoPUD-5083 is the modern choice for cutting-edge leather systems.