Hapco Hapflex 633-3 Semi-rigid urethane elastomers

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Hapco Hapflex 633-3 Semi-rigid urethane elastomers
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	The Hapflex 600 series products are known for their superior impact and abrasion resistance. Products in this series possess flame retardant properties and perform excellently in high or low temperatures. When post-cured, these products are virtually unbreakable. Living hinges, protective coverings, forming dies, patterns and core boxes are just a few examples of 600 Series applications. Information provided by Hapco, Inc.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.04 g/cc	1.04 g/cc	ASTM D-4669
Viscosity	1560 cP	1560 cP	ASTM D-4878
Linear Mold Shrinkage	0.0030 - 0.0050 cm/cm	0.0030 - 0.0050 in/in	ASTM D-2566

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	60	60	ASTM D-2240
Tensile Strength	19.3 MPa	2800 psi	ASTM D-638
Elongation at Break	225 %	225 %	ASTM D-638
Modulus of Elasticity	0.138 GPa	20.0 ksi	ASTM D-638
Flexural Strength	11.4 MPa	1660 psi	ASTM D-790
Flexural Modulus	0.170 GPa	24.6 ksi	ASTM D-790
Izod Impact, Notched	1.17 J/cm	2.20 ft-lb/in	ASTM D-256
Izod Impact, Unnotched	NB	NB	ASTM D-256
Tear Strength	73.6 kN/m	420 pli	ASTM 624 Die C

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	96.0 °C	205 °F	ASTM D-648
Deflection Temperature at 1.8 MPa (264 psi)	63.0 °C	145 °F	ASTM D-648

Processing Properties	Metric	English	Comments
Cure Time	20.0 - 35.0 min @Thickness 3.17 mm	0.333 - 0.583 hour @Thickness 0.125 in	Demold
Gel Time	3.00 min @Load 0.100 kg	3.00 min @Load 0.221 lb	ASTM D-2971

Descriptive Properties
Color (cured)	Red
Mix Ratio	100:55		Volume
	100:60		Weight

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PHAPCO104 / 317163

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