Description
| Unit Size | Net Weight |
| Gallon Kit | 24 lb |
| Five Gallon Kit | 120 lb |
PMC746 Polyurethane rubber was developed to make molds for casting gypsum plasters. Like PMC744, this product is well suited for use as a rubber case mold - especially large case molds where extra rigidity is required. Due to its durability and moisture resistant properties PMC746 is also used by zoos and museums for a variety of mold-making, display and exhibit applications. PMC746 contains no mercury.
Other applications include making plaster block molds, reproducing ornamental plaster (architectural restoration), pre-cast concrete molds, casting waxes, Smooth-On rigid polyurethanes and epoxies and also formaking a variety of special effects for movies and theatres.
Color may vary from amber to blue from batch to batch due to variability in raw materials.
Other applications include making plaster block molds, reproducing ornamental plaster (architectural restoration), pre-cast concrete molds, casting waxes, Smooth-On rigid polyurethanes and epoxies and also formaking a variety of special effects for movies and theatres.
Color may vary from amber to blue from batch to batch due to variability in raw materials.
Properties
Technical Properties
| Mix Ratio by Weight | 2A:1B |
| Mix Ratio by Volume | 2A:1B |
| Pot Life | 15 minutes |
| Cure Time | 16 hours |
| Color | from Amber to Blue |
| Shore Hardness | 60A |
| Mixed Viscosity | 1,200 cps |
| Shrinkage | < .001 in./in. |
| Specific Volume | 26.9 cu. in./lb. |
| Specific Gravity | 1.03g/cc |
| Tensile Strength | 700 psi |
| 100% Modulus | 220 psi |
| Elongation @ Break | 650% |
| Die C Tear Strength | 100 pli |
Documentation
Special Order Items
PRODUCT ADVISORY:
The products listed below are currently SPECIAL ORDER items and require pre order.
Lead times may vary - For more information please contact our staff.
700600 - PMC 746 - Gallon Kit
700610 - PMC 746 - Five Gallon Kit
The products listed below are currently SPECIAL ORDER items and require pre order.
Lead times may vary - For more information please contact our staff.
700600 - PMC 746 - Gallon Kit
700610 - PMC 746 - Five Gallon Kit
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