Sponge hardener
Sponge hardener New generation sponge hardener Adjusting sponge hardness has always been a difficult problem in the production of polyurethane block sponges. Sponge hardness can be adjusted in different ways. Usually, decreasing the hardness of a sponge, i.e. softening the sponge, does not change the other properties of the sponge too much, but it is…
Sponge hardener
New generation sponge hardener In the production of polyurethane block sponges, adjusting the hardness of the sponge has always been a difficult problem. The sponge hardness can be adjusted by different methods. Generally, reducing the hardness of the sponge, that is, softening the sponge, does not change the other properties of the sponge much, but…
