SiwoPUD®-1109

When it comes to textile and leather base coatings, softness alone isn’t enough—you also need strength and reliability. That’s where PUD-1109 steps in. This cationic polyurethane dispersion, based on an aliphatic/polyether structure, delivers the ideal balance of smooth film formation, high mechanical performance, and substrate compatibility, making it a go-to choice for fabric processing and as a leather primer.

With a solid content of 30±1%, PUD-1109 produces a soft yet resilient film that adheres well to woven and nonwoven substrates. Its mechanical stats are equally impressive: elongation of 500–600% ensures excellent flexibility without compromising structure, while a tensile strength of 20.8 MPa and modulus at 100% of 4.3 MPa provide the necessary toughness for performance coatings.

This dispersion is NMP-based, which enhances its processing characteristics in industrial environments, particularly where durability and elasticity must coexist. Its cationic ionicity plays a critical role in its strong attraction to negatively charged surfaces, giving it exceptional bonding on textiles and leathers.

Whether you’re enhancing the hand-feel of technical fabrics or creating the perfect base for layered leather finishing, PUD-1109 is designed to offer consistent results in demanding applications. It’s more than just soft—it’s structurally sound and chemically tuned for professional coating systems.

For a polyurethane dispersion that blends softness, strength, and specialized substrate compatibility, make PUD-1109 the backbone of your next coating formula.