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Plastics & Elastomers
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Plastics & Elastomers
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PMC® -746

Technical Datasheet | Supplied by Smooth-On
PMC® -746 by SmoothOn is a highly rigid, polyurethane rubber. Offers good durability and moisture resistance. Suitable for use in zoos and museums for a variety of mold-making, display and exhibit applications. Designed for large case molds for casting gypsum plasters. Recommended for plaster block molds, reproducing ornamental plaster (architectural restoration), pre-cast concrete molds, casting waxes, special effects for movies and theatres. PMC® -746 is mixed 2A:1B solution by weight or volume.
Product Type
PU (Polyurethane Rubber)
Physical Form
Liquid, Viscous

PMC® -746 Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Tensile Strength
700 psi
(after 7 days, at 23°C)
ASTM D-412
Tensile Elongation
650 %
(at Break, after 7 days, at 23°C)
ASTM D-412
Tensile Modulus
220 psi
(100%, after 7 days, at 23°C)
ASTM D-412
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