SiwoPUD®-809F

Extra Soft, Seriously Strong—Next-Level Flexibility in a Solvent-Free Finish

Characteristics:

Aqueous, aliphatic polyurethane dispersion based on polyether.

Supplied as:

40% in water

Storage:

The dispersion should be stored in a frost-free place in tightly sealed containers. It contains no preservative.

Application:

When softness meets serious strength, you get PUD-809F—a next-generation waterborne polyurethane dispersion engineered for high-performance coatings where flexibility, resilience, and environmental safety are non-negotiable.

Built on the foundation of its predecessor PUD-808F, this aliphatic PUD improves where it counts: it delivers enhanced softness without compromising the robust mechanical performance that made 808F a go-to choice. With a solid content of 40±1%, PUD-809F forms clear, flexible films that bond beautifully to synthetic leather bases, textiles, and technical surfaces requiring durability with a soft touch.

The mechanical data speaks volumes: elongation clocks in at an impressive 1350–1450%, offering superior stretch and flexibility for dynamic applications like textile printing or fold-resistant synthetic leather. A tensile strength of 43.1 MPa and a 100% modulus of 1.4 MPa give it a perfect balance of elasticity and toughness—ideal for substrates exposed to frequent bending, folding, or mechanical stress.

Just like its predecessor, PUD-809F excels in alkali resistance and maintains excellent performance even in low-temperature folding conditions. But what sets it apart is its improved tactile quality—its softer finish offers a more luxurious hand-feel, expanding its versatility in fashion, upholstery, and specialty coatings.

Importantly, PUD-809F is NMP-free, making it a more environmentally conscious choice without compromising on performance.

If your coating application demands a solvent-free solution that bends, flexes, and performs under pressure—PUD-809F is the upgrade you’ve been waiting for.