SiwoPUD®-352HB

When performance matters, SiwoPUD-352HB steps up. This aqueous, aliphatic polyurethane dispersion is engineered from a dual backbone of polyether and polyester, striking a balance between flexibility and durability. Designed for coatings that require strength without sacrificing finish, SiwoPUD-352HB is your solution for advanced applications across leather, textiles, rubber, and plastics.

What sets it apart? For starters, the physical profile tells a compelling story. With a non-volatile constituent of 38±1%, this dispersion goes on with a translucent appearance, forming films that dry to the touch in 30 minutes and fully through in 60 minutes—ideal for fast-paced production environments. The formulation includes just 6% organic solvents, offering a more sustainable, lower-VOC alternative to conventional coatings.

Flexibility meets strength in the mechanical performance: elongation of 700–800%, tensile strength of 22.7 MPa, and a 100% modulus of 3.8 MPa make SiwoPUD-352HB a top performer in stress-intensive applications. Add to that its glass transition temperature of -25°C, and you have a coating that holds its own under low-temperature conditions, while still maintaining excellent water resistance and non-yellowing stability over time.

The shear stability is robust, making it compatible with a wide range of application systems. With a pH value between 7.0 and 9.5, and a mean particle size of ≤100 nm, this dispersion applies smoothly and evenly, producing a medium-hard coating film with high gloss and outstanding adhesion even on difficult substrates.

For manufacturers seeking a dependable, high-performance coating that delivers both beauty and resilience, SiwoPUD-352HB checks all the boxes. Just be sure to store it frost-free in tightly sealed containers, as the product contains no preservative and requires proper handling to preserve its quality.

From fashion textiles to flexible rubber, SiwoPUD-352HB is built to perform, built to last—and built for you.