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Reynolds Econ® 80 Urethane Mold making Rubber
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced

Material Notes: Product Overview: Econ™ 80 is an economical Shore 80A urethane rubber suitable for a variety of mold making and industrial applications. It is a lower cost, faster cure alternative to our popular PMC™-780. Physical properties are lower vs. PMC™-780. This is a no odor system that features a 1A:1B mix ratio and a low viscosity for easy mixing and pouring. Working time is about 13 minutes at room temperature, handling time is 6 hours and rubber cures overnight. Econ™ 80 is translucent and easily colored with SO-Strong™ or Ignite™ colorants. Econ™ 80 is used to make short run molds for casting concrete and resins, concrete stamping pads, rubber mechanical parts, coating fabrics, pour-in-place gaskets for industrial equipment and burial vaults. Important; To minimize air bubbles in cured rubber, vacuum degassing is recommended.

Information provided by Reynolds Advanced Materials

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.06 g/ccASTM D-1475
Linear Mold Shrinkage 0.0014 in/in
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 80ASTM D-2240
Tensile Strength 955 psiASTM D-412
Elongation at Break 127 %ASTM D-412
100% Modulus 670 psiASTM D-412
Tear Strength 77.0 pliDie C; ASTM D-624
 
Processing PropertiesOriginal ValueComments
Cure Time 24.0 hour
Pot Life 13.0 minASTM D-2471
 
Descriptive Properties
ColorTranslucent
Mix Ratio100A:90Bby weight
 1A:1Bby volume
Specific Volume26.2[cu. in./lb.]

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PREYN090 / 296791

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