SiwoPUD®-2517

If your project demands a polyurethane dispersion that doesn’t flinch under pressure, SiwoPUD-2517 might be the perfect match. This aqueous, aliphatic polyurethane dispersion—based on epoxy-modified polycarbonate chemistry—brings advanced protection and performance to surfaces that face wear, chemicals, and the elements daily.

Formulated for applications where adhesion, durability, and clarity are essential, SiwoPUD-2517 is supplied at a 30% non-volatile solids content, suspended in water. Its translucent appearance makes it a versatile base for coatings, while its cationic ionicity gives it unique compatibility with metal and wood substrates. With a pH value between 3.5–5.5 and mean particle size ≤200 nm, this dispersion is engineered for smooth, uniform film formation—even on complex surfaces.

Drying performance is another standout. SiwoPUD-2517 dries fast, with a dry-to-touch time of ≤30 minutes and a through-dry time of ≤60 minutes, making it ideal for production environments where speed matters. Despite this quick-drying nature, the final film achieves a Shore A Hardness of 96, delivering a firm, protective finish that resists abrasion, scratches, and deformation.

The film’s resilience doesn’t stop there. It exhibits excellent adhesion, wear resistance, and strong resistance to acid, alkali, water, alcohol, and chemical agents, making it ideal for metal surface treatments and wood sealing primers. Whether you’re working on industrial parts or interior wood finishes, this product ensures reliable, lasting protection without compromising on application ease.

Best of all, it’s NMP-, NEP-, and DMAC-free, aligning with increasingly stringent environmental and safety standards. With good shear stability and non-yellowing performance, SiwoPUD-2517 maintains both its structure and appearance over time. It does not contain any preservatives, so it must be stored frost-free in tightly sealed containers to preserve its quality.

For a high-performance polyurethane dispersion that balances strength, clarity, and safety, SiwoPUD-2517 is a dependable choice across challenging industrial and commercial applications.