Reynolds EZ~Spray® 45 Sprayable Urethane Rubber Compound

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Reynolds EZ~Spray® 45 Sprayable Urethane Rubber Compound
Categories:	Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced
Material Notes:	Product Overview: EZ~Spray® 45 is a polyurethane rubber for spraying through the EZ~Spray® Junior Cartridge System. Refer to EZ~Spray® Junior manual prior to spraying this product. EZ~Spray® 45 can be sprayed onto vertical surfaces for making molds or is good for making fast molds of large surface areas. After a suitable thickness is attained, EZ~Spray® 45 cures overnight with negligible shrinkage to a durable mold rubber. Application of a support shell is achieved by spraying Smooth-On’s EZ~Spray® Plastic over the rubber mold after it has fully cured. EZ~Spray® 45 is suitable for casting a variety of materials including wax, gypsum, urethane or epoxy resins, concrete, etc. Information provided by Reynolds Advanced Materials
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Physical Properties	Metric	English	Comments

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

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	45	45	ASTM D-2240
Tensile Strength	3.52 MPa	510 psi	ASTM D-412
Elongation at Break	375 %	375 %	ASTM D-412
Tear Strength	17.5 kN/m	100 pli	Die C; ASTM D-624

Processing Properties	Metric	English	Comments
Cure Time	960 min	16.0 hour
Pot Life	20.0 min	20.0 min	ASTM D-2471

Descriptive Properties
Color	Light Blue
Mix Ratio	1A:1B		by volume
Mixed Viscosity	Sprayable
Specific Volume	27		[cu. in./lb.]

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