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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.

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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