Reynolds Advanced Materials
Since 1963
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Polyurethane Rubber Compound

PMC®-746 was developed to make molds for casting gypsum plasters. This product is well suited for use as a rubber case mold – especially large case molds where extra rigidity is required. Shore hardness is 60 A. It features a convenient mix ratio (2:1 by weight or volume), and contains no mercury. Other applications include making plaster block molds, reproducing ornamental plaster (architectural restoration), pre-cast concrete molds, casting waxes, rigid polyurethanes and epoxies and also for making a variety of special effects for movies and theatre.


Subtotal: $0.00
ProductSizeNet WeightPrice Quantity
Polyurethane rubber compound designed for casting gypsums. WARNING: Prop 65 NoticeWARNING: Known to the state of CA to cause cancer, birth defects or reproductive harm -
Look Closer Trial Unit 3 lbs. $34.08
Look Closer Gallon Unit 24 lbs. $180.66

Technical & Safety

Technical Bulletin


Additional Documents

alertA release agent is required to remove cured urethane rubber from most surfaces.
alertMany surfaces need to be sealed before applying urethane rubber.