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Dow ISONATE™ 240 MDI Prepolymer

Category Fluid , Polymer
Manufacturer Dow Chemical
Trade Name ISONATE™
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
ISONATE™ 240 MDI prepolymer is a modified MDI compound produced by reacting high-purity diphenylmethane diisocyanate with a high molecular weight polyester polyol, resulting in a material with good storage stability down to 72°F. This medium-viscosity product may be formulated with conventional polyether or polyester polyols and short chain diols or triols to yield high physical property elastomers or microcellular foams via the cast, low pressure or RIM-dispensing processes. Information provided by Dow
Physical Properties Metric English Comments
Density 1.22 g/cc
0.0441 lb/in³
Viscosity 1500 cP
1500 cP
Vapor Pressure <= 1.33e-8 bar
<= 0.0000100 torr
Thermal Properties Metric English Comments
Heat of Vaporization 360 J/g
155 BTU/lb
CTE, linear 737 µm/m-°C

@Temperature 20.0 °C
409 µin/in-°F

@Temperature 68.0 °F
volumetric
Specific Heat Capacity 1.80 J/g-°C
0.430 BTU/lb-°F
Thermal Conductivity 0.126 W/m-K
0.870 BTU-in/hr-ft²-°F
Boiling Point 314 °C
597 °F
Decomposition Temperature 230 °C
446 °F
Flash Point >= 177 °C
>= 351 °F
Closed Cup; ASTM D93
Chemical Properties Metric English Comments
Acid Value 0.020
0.020
% as HCl
Descriptive Properties Value Comments
Hydrolyzable Chloride ppm 50
Isocyanate Equivalent Weight 225
NCO Content wt% 18.7
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