SiwoPUD®-1517

When you’re dealing with leather or synthetic substrates that just don’t want to play nice, PUD-1517 steps in with the perfect blend of softness and long-lasting tack. This aliphatic polyurethane dispersion is specially designed for use as a water-based primer coating, and it’s got one job: stick like a charm to the most stubborn surfaces—and never let go.

With a solid content of 25±1%, PUD-1517 is lightweight but effective, forming a soft, flexible film that retains its tackiness even after drying. That “long-term sticky” quality isn’t just a quirk—it’s a feature. It allows the primer layer to keep bonding power for downstream coatings or layers, giving you better adhesion and finish consistency across the board.

Where this resin really shines is on difficult leathers and attached substrates—the kind that typically resist adhesion or require aggressive surface prep. PUD-1517 eliminates the drama and gets the job done, providing a solid base that improves coating durability, adhesion strength, and overall finish.

And yes, it’s NMP-free, which means it’s easier on the environment and safer to handle in production spaces focused on cleaner chemistry.

If you’re in the business of bonding to the unbondable, PUD-1517 is your go-to primer resin. Sticky where it matters, soft where it counts, and always ready to help your topcoats shine.