Bismuth catalysts accelerate the reaction rate for NCO and OH functional group. It is ideal for TPU, PU synthetic leather, PU foam, and PU pre-polymerization.

Patented technology for Bi catalyst that has superior hydrolytic stability, this type of catalyst is ideal for water-blown system and PUD adhesive.

Longer reaction time than Bismuth catalysts, Zinc catalysts accelerate the crosslinking between NCO and OH functional group, which is ideal for PUR adhesives, coating, and sealant.

Bismuth & Zinc catalysts are for people who want to accelerate both the NCO and OH polymerization and crosslinking such as PU gel.