K-FLEX UD-320 is a high solids, aliphatic, low molecular weight urethane diol oligomer. It is soluble in polar organic solvents and has broad compatibility with acrylic, polyester, and alkyd resins. K-FLEX UD-320 will increase the hardness of a melamine crosslinked system. When used to modify a 2-component polyurethane, it will increase hardness and flexibility. K-FLEX UD-320 responds best to a zirconium chelate catalyst when used in isocyanate crosslinked systems.
Viscosity @ 25°C
Machinery and equipment