Taiwan PU CPU-MT-1090 PTMEG MDI Hot-cast Polyurethane

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Taiwan PU CPU-MT-1090 PTMEG MDI Hot-cast Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Key features: Hardness: 80-90A Curing agent: 14BDO High tensile strength Good hydrolysis resistance Good mechanical property Application: This series of hot-cast polyurethane (also named as polyurethane prepolymer) is suitable to make bushes, Castor Wheels, Couplings, Conveyor Rollers, Cutting Boards, Fork-lift Tyres, Gears, Grading Screens, Pneumatic and Oil Seals, Scrapers, Skate Wheels, Wire Guides. Introduction: PTMEG-based MDI-terminated prepolymer is normally cured with1,4-Butanediol (1,4-BDO) to yield an elastomer. This product is for hot-casting polyurethane use. The product is an elastomer with excellent toughness which is characteristic of MDI-PTMEG systems without solvent or plasticizer. Information provided by Taiwan PU Corporation
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Mechanical Properties	Original Value	Comments

Hardness, Shore A	88 - 92
Tensile Strength	400 - 480 kg(f)/cm²
Elongation at Break	430 - 530 %
Tear Strength	100 - 115 kg(f)/cm

Thermal Properties	Original Value	Comments
Working Point	25.0 °C	1,4-BDO
	70.0 - 80.0 °C	Prepolymer

Processing Properties	Original Value	Comments
Pot Life	6.00 min @Load 0.100 kg, Temperature 70.0 °C

Descriptive Properties
Composition	6.9-7.3%	NCO
Mixing ratio	100 : 7 - 7.4	PU prepolymer :1,4-BDO

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