HOW TO MAKE A RUBBER MOLD OF A CORBEL This mold making and casting tutorial features the making of a poured, polyurethane block mold of a plastic corbel. Polyurethane plastic copies are then cast in the mold. A polyurethane mold rubber will be used to the make the mold because the intent is to eventually cast concrete (although we do show some resin casting in this tutorial). Polyurethane mold rubbers work very well for a variety of concrete applications. For More info Contact - 8050657801 / 8884343524 Contact Jay Enterprises Bangalore