Reynolds Econ® 80 Urethane Mold making Rubber

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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 Properties	Metric	English	Comments

Specific Gravity	1.06 g/cc	1.06 g/cc	ASTM D-1475
Linear Mold Shrinkage	0.0014 cm/cm	0.0014 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	80	80	ASTM D-2240
Tensile Strength	6.58 MPa	955 psi	ASTM D-412
Elongation at Break	127 %	127 %	ASTM D-412
100% Modulus	4.62 MPa	670 psi	ASTM D-412
Tear Strength	13.5 kN/m	77.0 pli	Die C; ASTM D-624

Processing Properties	Metric	English	Comments
Cure Time	1440 min	24.0 hour
Pot Life	13.0 min	13.0 min	ASTM D-2471

Descriptive Properties
Color	Translucent
Mix Ratio	100A:90B		by weight
	1A:1B		by volume
Specific Volume	26.2		[cu. in./lb.]

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PREYN090 / 296791

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