SiwoPUD®-OH-903

Built Tough for Beautiful Finishes

Characteristics:

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

Supplied as:

33% in water

Storage:

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

Application:

If you’re formulating coatings that need to look great and last even longer, OH-PUD-903 is ready to deliver. Designed for use in water-based wood and decorative coatings, this aliphatic/polyester polyurethane dispersion balances visual appeal with impressive resistance properties—especially when paired with a water-dispersible polyisocyanate crosslinker.

With a solid content of 33±1%, OH-PUD-903 is easy to formulate into systems requiring hardness and durability. Its low hydroxyl content offers a more flexible backbone during application but ramps up performance significantly upon crosslinking.

What really sets OH-PUD-903 apart? The cured film’s excellent hardness, along with good water resistance and good resistance to alcohol. Whether it’s a protective clear coat over natural wood grain or a colored topcoat for high-end decorative pieces, this PUD brings the mechanical integrity to withstand everyday wear while maintaining a high-quality aesthetic.

It’s also completely NMP-free, supporting your efforts to create safer, more environmentally conscious formulations. That makes OH-PUD-903 a smart choice for manufacturers seeking compliant, high-performance coatings without sacrificing on application or finish quality.

From modern furniture finishes to upscale décor elements, OH-PUD-903 is your foundation for a tougher, cleaner, more beautiful surface. When paired with the right crosslinker, it offers both durability and peace of mind in one.