Hapco Hapflex 850-3 Flexible Urethane Elastomers

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Hapco Hapflex 850-3 Flexible Urethane Elastomers
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	The Hapflex 500 Series is distinguished by its high shock resistance and durability, making it ideal for molds or components that will endure the test of time. Many products in this series, excluding the 540/541 formulation, possess flame retardant properties and perform excellently in high or low temperatures. They are widely utilized for producing molds, parts, seals, and coatings. Information provided by Hapco, Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.10 g/cc	ASTM D-4669
Viscosity	1120 cP	ASTM D-4878
Linear Mold Shrinkage	0.0020 - 0.0030 in/in	ASTM D-2566

Mechanical Properties	Original Value	Comments
Hardness, Shore A	85	ASTM D-2240
Tensile Strength	1540 psi	ASTM D-638
Elongation at Break	475 %	ASTM D-638
Modulus of Elasticity	2.20 ksi	ASTM D-638
Izod Impact, Notched	NB	ASTM D-256
Izod Impact, Unnotched	NB	ASTM D-256
Tear Strength	334 pli	ASTM 624 Die C

Processing Properties	Original Value	Comments
Cure Time	1.00 - 2.00 hour @Thickness 3.17 mm	Demold
Gel Time	3.00 min @Load 0.100 kg	ASTM D-2971

Descriptive Properties
Color (cured)	Black
Mix Ratio	100:70	Weight
	100:74	Volume

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PHAPCO085 / 317144

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