Taiwan PU CPU-2079 PPG TDI Casting PU

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Taiwan PU CPU-2079 PPG TDI Casting PU
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Key features: Hardness: 55-97A, 72D Curing agent: MOCA Hot casting polyurethane prepolymer Good elasticity Good hydrolysis resistance Good mechanical property Application: Casting PU prepolymer can be used on the following applications: Bushes, Castor Wheels, Couplings, Conveyor Rollers, Cutting Boards, Fork-lift Tyres, Gears, Grading Screens, Pneumatic and Oil Seals, Scrapers, Skate Wheels, Wire Guides. Introduction: "PU Casting Elastomer" polyurethane prepolymer can be cured by reacting with a polyamine or a polyol hardener. The molding process is composed of pre-heating, degassing, mixing with a hardener, pouring into the mold, curing, demolding and post curing. Information provided by Taiwan PU Corporation
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Physical Properties	Metric	English	Comments

Viscosity	5500 - 10000 cP	5500 - 10000 cP

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	76 - 82	76 - 82
Tensile Strength	9.81 - 14.7 MPa	1420 - 2130 psi
Elongation at Break	550 - 600 %	550 - 600 %
Tear Strength	78.5 - 108 kN/m	448 - 616 pli

Thermal Properties	Metric	English	Comments
Working Point	70.0 - 80.0 °C	158 - 176 °F	Prepolymer

Processing Properties	Metric	English	Comments
Mold Temperature	70.0 - 90.0 °C	158 - 194 °F
Pot Life	4.00 - 6.00 min	4.00 - 6.00 min

Descriptive Properties
Composition	11.5-12.5%		PHR of MOCA
	3.4-4.2%		NCO Content
Temperature	100-120		MOCA

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PTAIWPU009 / 305739

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