SiwoPUD®-201

When performance, clarity, and resilience matter most, SiwoPUD-201 delivers. This aqueous, aliphatic polyurethane dispersion, based on polycarbonate and polyester, offers a powerful blend of toughness and flexibility. Designed for high-performance fabric coatings and printing inks, it combines mechanical strength with excellent aesthetic stability—making it a standout solution for manufacturers and formulators seeking superior results.

What makes SiwoPUD-201 different? Start with the numbers. This dispersion features a solid content of 35±1%, resulting in a film that’s easy to build yet lightweight. Its tensile strength of 25.7 MPa and 100% modulus of 4.3 MPa provide robust elasticity and structural integrity, while maintaining flexibility with elongation values ranging from 400–500%. The result? A coating that stretches without cracking and holds firm under pressure.

The dispersion’s glass transition temperature (Tg) of -25°C ensures cold-weather flexibility, while the mean particle size of ≤100 nm supports a smooth, even application. Its pH value of 7.0–9.5 ensures stability in various formulation environments, and with a viscosity ≤200 mPa·s, it’s easy to handle and process. Notably, this product is entirely NMP, NEP, and DMAC free, aligning with growing global standards for safer, eco-friendlier chemistry.

SiwoPUD-201 doesn’t just perform—it protects. Its film is non-yellowing, offering long-term visual clarity, and while its surface drying is slow, it compensates with good water resistance, strong adhesion, and excellent shear stability. These properties make it a trusted choice for demanding coating and ink applications, where consistency, durability, and color retention are key.

Engineered for performance and formulated for safety, SiwoPUD-201 is a versatile addition to your materials toolkit—particularly if you’re developing coatings or inks that demand strength without sacrificing flexibility or finish.

Store in frost-free, tightly sealed containers, and note that this product contains no preservative. Reach out today to explore how SiwoPUD-201 can elevate your formulation.