Covestro MONDUR® MB Polyurethane

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Covestro MONDUR® MB Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Mondur MB is a high-purity-grade difunctional isocyanate, diphenylmethane 4,4 ’-diisocyanate (MDI). Properties / Applications: Mondur MB isocyanate can be used in the production of solid polyurethane elastomers, adhesives, coatings, and in intermediate polyurethane products. As with any product, use of Mondur MB isocyanate in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	1.19 g/cc	1.19 g/cc
Viscosity	4.1 cP @Temperature 40.0 °C	4.1 cP @Temperature 104 °F	Molten

Thermal Properties	Metric	English	Comments
Melting Point	39.0 °C	102 °F	Freezing Point
Flash Point	202 °C	396 °F	PMCC

Descriptive Properties
Acidity	<15 ppm		as HCl, Fused
	<15 ppm		as HCl, Molten
Appearance	Colorless liquid
Color	<20		melt, APHA, Fused
	<20		melt, APHA, Molten
Content	<0.3%		MDI Dimer, Molten
	<1%		MDI Dimer, Fused
	<20 ppm		Hydrolyzable chloride, Molten
	<25 ppm		Hydrolyzable chloride, Fused
	>99.5%		Assay, Fused
	>99.5%		Assay, Molten

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PCOVEST0908 / 202691

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