SiwoPUD®-1620X

When your project demands nothing less than extreme durability, SiwoPUD-1620X delivers on every front. This aqueous, aliphatic polyurethane dispersion is based on polycarbonate chemistry, giving it the kind of backbone you need for industrial coatings that stand up to heat, wear, chemicals, and the elements.

Formulated at a 35±1% solid content, SiwoPUD-1620X offers outstanding wear resistance, chemical resistance, and heat resistance—while also being NMP-, NEP-, and DMAC-free, making it safer for both operators and the environment. Its non-yellowing finish means your coated surfaces maintain their aesthetic integrity over time, even in UV-exposed conditions. Whether you’re coating metal, glass, wood, or other industrial surfaces, this dispersion forms a hard, stable film that performs reliably under stress.

The film formation process benefits from a recommended 1–3% dipropylene glycol monomethyl ether (DPM) additive to support application in environments with a minimum film-forming temperature of 30–40°C. Once applied, it dries fast and cures into a robust surface with an impressive Shore A Hardness of 97, ensuring exceptional scratch resistance and mechanical durability.

Engineered for stability and long-term performance, SiwoPUD-1620X features a mean particle size of ≤100 nm, viscosity ≤200mPa·s, and pH range between 7.0 and 9.5—making it easy to handle while ensuring uniformity and consistency. It also offers good shear stability, which contributes to a smoother application in high-shear mixing or spraying conditions.

In short, if your application calls for a high-molecular-weight, anionic polyurethane dispersion that doesn’t compromise on toughness, SiwoPUD-1620X is your go-to. With advanced weather resistance, stain resistance, and solvent tolerance, it sets a new benchmark for hard-wearing industrial coatings. Store it in a frost-free environment, in tightly sealed containers, and let the performance speak for itself—no preservatives, no shortcuts, just results.