Evonik VESTANAT® TMDI Diisocyanate

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Evonik VESTANAT® TMDI Diisocyanate
Categories:	Polymer
Material Notes:	VESTANAT TMDI is an aliphatic diisocyanate, methyl group branched. It represents a mixture of the 2,2,4- and 2,4,4-trimethyl-hexamethylene diisocyanate (about 1:1). It is a low viscosity, colorless liquid with a weak but specific odor. It is light and weather resistant.
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Physical Properties	Metric	English	Comments

Density	1.01 - 1.016 g/cc @Temperature 20.0 °C	0.0365 - 0.03671 lb/in³ @Temperature 68.0 °F	DIN 51 757
Viscosity	5.0 - 8.0 cP @Temperature 23.0 °C	5.0 - 8.0 cP @Temperature 73.4 °F	DIN EN ISO 3219
Vapor Pressure	0.00000270 bar	0.00203 torr

Thermal Properties	Metric	English	Comments
Flash Point	148 °C	298 °F	closed cup; DIN 51 758
Ignition Temperature	440 °C	824 °F	DIN 51 794

Optical Properties	Metric	English	Comments
Refractive Index	1.461	1.461	DIN 51 423, Part 2

Component Elements Properties	Metric	English	Comments
Chlorine, Cl	<= 0.0010 %	<= 0.0010 %

Descriptive Properties
Hazen Color Index, max	10		DIN ISO 6271
NCO content (% wt)	39.7-40		EN ISO 11 909

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PHUMB408 / 81410

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