SiwoPUD®-OH-1930

The Flexible Polyurethane Workhorse Built for Blends and Crosslinking

Characteristics:

Aqueous, aliphatic hydroxyl-functional polyurethane dispersion based on polyester.

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 versatility meets softness, you get OH-PUD-1930—a low-hydroxyl content polyurethane dispersion that excels in elasticity, compatibility, and customizable cure options. This aliphatic/polyester blend is designed for formulators who need flexibility—literally and chemically.

With a solid content of 40±1%, OH-PUD-1930 offers a robust foundation for coatings that need to flex without failing. Its low hardness makes it an ideal choice for soft-touch surfaces or flexible substrates where brittleness is a deal-breaker. Despite its softness, it retains good elasticity, allowing it to stretch and recover effectively in dynamic applications.

Where OH-PUD-1930 really shines is in its adaptability. It can be used alone for simple applications or combined with other aqueous resins to fine-tune performance attributes like film formation, durability, and finish. For curing, you have options: pair it with a water-dispersible polyisocyanate crosslinker for room temperature curing, or go with an amino resin for high-temperature curing—giving you total formulation control.

This grade is also NMP-free, supporting safer and more environmentally conscious formulations without compromising on performance. Whether you’re developing high-performance coatings, flexible adhesives, or soft-touch finishes, OH-PUD-1930 brings the balanced performance and process flexibility you need.

If you’re looking for a PUD that blends seamlessly into hybrid systems while offering softness, stretch, and smart curing versatility, OH-PUD-1930 is your go-to building block.