SiwoPUD®-2451

When you need a coating that holds up against the harshest elements without compromising flexibility or finish, SiwoPUD-2451 delivers in full force. This aqueous, aliphatic polyurethane dispersion is engineered with polycarbonate diol at its core—making it ideal for advanced industrial coatings that demand superior durability and resilience.

Formulated at a high non-volatile content of 50±1%, SiwoPUD-2451 ensures excellent film build with a translucent-white appearance, offering both visual appeal and functional integrity. Its viscosity ≤1000mPa·s ensures easy application, and its pH value of 7.0–9.5 provides formulation flexibility across a wide range of systems. This is a product that’s smooth to apply, fast to dry, and long-lasting by design.

And it’s not just what’s in it—it’s what’s left out. SiwoPUD-2451 is NMP, NEP, and DMAC free, containing no organotin compounds, heavy metals, or formaldehyde, making it an environmentally safer choice for manufacturers looking to reduce exposure to harmful solvents.

From a performance perspective, SiwoPUD-2451 is no lightweight. With elongation at 650%, tensile strength of 35.5 MPa, and a 100% modulus of 3.3 MPa, it offers a powerful mix of strength and stretch—ideal for elastic construction coatings and rubber applications. Its non-yellowing nature combined with exceptional UV, water, and wear resistance ensures long-term reliability in both interior and exterior conditions.

Whether you’re working on rubber coatings, leather finishes, or fabric printing applications, this dispersion brings high fullness, thickness, and dependable performance. For enhanced durability, it can also be crosslinked using aziridine or water-dispersible polyisocyanate crosslinkers.

Tough, flexible, and made for the long run—SiwoPUD-2451 is the go-to solution when your coatings need to do more than just look good. They need to last.