Taiwan PU CPU - 42L PTMEG TDI Polyurethane Prepolymer

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Taiwan PU CPU - 42L PTMEG TDI Polyurethane Prepolymer
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Key features: Hardness: 80-95A, 70D Curing agent: MOCA Hot cast polyurethane elastomer High tensile strength Good hydrolysis resistance Good mechanical property Application: The polyurethane prepolymer is suitable to 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" urethane elastomer is polyurethane prepolymer. It 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	32000 - 50000 cP	32000 - 50000 cP

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	77 - 89	77 - 89
Tensile Strength	28.4 - 42.2 MPa	4120 - 6120 psi
Elongation at Break	545 - 645 %	545 - 645 %
Tear Strength	63.7 - 103 kN/m	364 - 588 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	10.2-11.2%		PHR of MOCA
	2.95-3.55%		NCO Content
Temperature	100-120		MOCA

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PTAIWPU000 / 305730

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