Reynolds EZ-Mix® 40 Brushable Urethane Rubber Compound

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Reynolds EZ-Mix® 40 Brushable Urethane Rubber Compound
Categories:	Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced
Material Notes:	Product Overview: EZ-MIX® 40 is a brushable polyurethane rubber mold compound that mixes and applies easily. Two liquids (Part A and Part B) are measured and combined in equal amounts by volume (no scale is necessary). After a few minutes of mixing, EZ-MIX® 40 is ready to be applied to a vertical surface with a brush. After a suitable thickness is attained (multiple layers), EZ-MIX® 40 cures overnight with negligible shrinkage to a flexible, durable mold rubber. Following the application of a support shell, a rubber mold made with EZ-MIX® 40 is suitable for casting a variety of materials including wax, gypsum, urethane/epoxy resins, concrete, cement, etc. Information provided by Reynolds Advanced Materials
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Physical Properties	Original Value	Comments

Specific Gravity	1.025 g/cc	ASTM D-1475
Linear Mold Shrinkage	<= 0.0010 in/in

Mechanical Properties	Original Value	Comments
Hardness, Shore A	40	ASTM D-2240
Tensile Strength	420 psi	ASTM D-412
Elongation at Break	577 %	ASTM D-412
Tear Strength	67.0 pli	Die C; ASTM D-624

Processing Properties	Original Value	Comments
Cure Time	16.0 hour
Pot Life	18.0 min	ASTM D-2471

Descriptive Properties
Color	Grey
Mix Ratio	100A:95B	by weight
	1A:1B	by volume
Mixed Viscosity	Brushable
Specific Volume	27	[cu. in./lb.]

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