Polyurethanes are made from a chemical reaction between isocyanates and polyols. When there are water molecules in the system, they react with isocyanates and lead to the formation of a polyamide and gaseous CO2. The carbon dioxide remains trapped in the polyurethane in the form of small bubbles, which have a negative effect on the mechanical and visual properties of the final product.
Zeolite activated powders Asorbio® ZAP can be easily dispersed in any formula and remove water molecules from the input raw materials and from already formulated systems (1K- and 2K- polyurethane systems). Asorbio® ZAP products differ with regard to the size of the pores and have been specifically developed for the production of polyurethane products.