SiwoPUD®-1622

Maximum Hardness, Zero Compromise—A Tougher Take on Surface Coatings

Characteristics:

Aqueous, aliphatic polyurethane dispersion based on poly(ester+carbonate).

Supplied as:

35% in water

Storage:

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

Application:

When durability is the name of the game, PUD-1622 is the heavyweight contender you want in your corner. As the tougher, more resilient evolution of PUD-1621, this aliphatic polyurethane dispersion cranks up the hardness with a Shore A rating of 97, offering exceptional protection for surfaces that face constant wear and tear.

With a solid content of 35±1%, PUD-1622 creates a dense, uniform film with superior surface strength—perfect for industries where long-term performance isn’t just appreciated, it’s expected. Whether you’re formulating high-end industrial coatings, durable wood or metal finishes, or exploring next-gen applications in composites or functional surfaces, this dispersion has your back.

What’s even better? It’s NMP-free, making it a smart choice for companies looking to improve environmental compliance while still demanding the highest standard of coating strength. And despite its ultra-hard finish, PUD-1622 still retains solid adhesion and long-term stability across a variety of substrates.

Use it when you’re after increased abrasion resistance, chemical durability, or simply need a surface that looks good and stays that way—no dents, no dullness. It’s ideal for any setting where maximum surface hardness is non-negotiable.

If PUD-1621 gave you good results, PUD-1622 will take it to the next level. Stronger. Harder. Just as smooth.