K-FLEX® A307

K-FLEX® A307 by King Industries is a low viscosity, 100% solids linear, saturated, aliphatic polyester diol with primary hydroxyl groups. It was designed as a flexibility modifier for acrylic /isocyanate and acrylic/melamine systems. Offers improved flexibility, good balance of surface dry/pot life in 2K PU, light color and abrasion resistance. The low hydroxyl number minimizes the crosslinker demand. K-FLEX® A307 has no acid functionality. Its shelf life is minimum of 24 months from date of manufacture, when stored in the original container at ambient conditions.