Covestro Baytec® MP-120 Polyurethane

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Covestro Baytec® MP-120 Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Baytec MP-120 is a diphenylmethane diisocyanate (MDI)-terminated polyether prepolymer based on polypropylene ether glycol (PPG). Properties / Applications: Baytec MP-120 is a diphenylmethane diisocyanate (MDI)-terminated polyether prepolymer based on polypropylene ether glycol (PPG). It forms clear, moisture-cured films and is used in the formulation of one-component moisture-cured binders and two-component sealants and cast elastomers. Typical applications include rubber crumb binders, flexible caulks, and sealants. As with any product, use of Baytec MP-120 prepolymer in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.10 g/cc
	1.05 g/cc @Temperature 80.0 °C
	1.09 g/cc @Temperature 30.0 °C
Viscosity	2000 cP
	100 cP @Temperature 90.0 °C
	200 cP @Temperature 70.0 °C
	400 cP @Temperature 50.0 °C
	700 cP @Temperature 40.0 °C

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	279 MPa	ASTM D412
Tensile Stress at Strain	12.5 MPa @Strain 100 %	ASTM D412
	19.0 MPa @Strain 300 %	ASTM D412
Elongation at Break	424 %	ASTM D412

Thermal Properties	Original Value	Comments
Flash Point	>= 93.0 °C	PMCC

Descriptive Properties
Appearance	Yellow liquid
Content	11.7-12.3%	NCO

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PCOVEST0250 / 202033

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