Hardcast A/B is an unfilled, 100% solid castable urethane plastic system. It is an odorless, low shrink plastic that exhibits low reactivity temperature (170F - 77C maximum) with excellent durability, impact resistance, excellent rigidity, and high heat resistance. Once cured, it can be machined, sanded, and drilled. Material can either be hand or meter mixed. Fillers can be added to adjust cost, appearance, and function.