Reynolds PMC® 770 Industrial Liquid Rubber Compound

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Reynolds PMC® 770 Industrial Liquid Rubber Compound
Categories:	Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Liquid
Material Notes:	Product Overview: PMC®-770 is a Shore 70A addition to our line of industrial liquid rubber products (such as PMC®-780 and PMC®-790) used for a variety industrial and casting applications. Mixed two parts A to one part B by weight, PMC®-770 pours easily and cures at room temperature to a solid Shore 70A rubber that has exceptional performance characteristics and dimensional stability. It is suitable for production casting of abrasive materials such as concrete (pre-cast concrete, making concrete stamping pads, etc.) and gypsum plasters with high exotherms. It is also suitable for rubber mechanical parts of varying configurations (gaskets, wheels, pullies) as well as ball mill liners and vibration/shock pads. Information provided by Reynolds Advanced Materials
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Physical Properties	Original Value	Comments

Specific Gravity	1.04 g/cc	ASTM D-1475
Viscosity	3000 cP	Mixed; ASTM D-2393
Linear Mold Shrinkage	<= 0.0010 in/in

Mechanical Properties	Original Value	Comments
Hardness, Shore A	70	ASTM D-2240
Tensile Strength	750 psi	ASTM D-412
Elongation at Break	750 %	ASTM D-412
100% Modulus	250 psi	ASTM D-412
Tear Strength	200 pli	Die C; ASTM D-624

Processing Properties	Original Value	Comments
Cure Time	16.0 hour
Pot Life	30.0 min	ASTM D-2471

Descriptive Properties
Color	Light Amber
Mix Ratio	2A:1B	by volume
	2A:1B	by weight
Specific Volume	26.5	[cu. in./lb.]

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