- Hydroxyl Value:350.0 - 350.0 mg KOH/g
K-FLEX® UD-320-100 a 100% solids version of K-FLEX® UD-320 recommended for prepolymer synthesis and 100% solids WB/SB melamine crosslinked systems or 2K PU. Used for preparation of polyester polyurethanes or alkyd polyurethanes. It provides hardness and exterior durability.