Covestro DESMODUR® MDQ23165 + BAYTEC® D22-70MF + BAYTEC® XL B (Catalyst SD6-2) 90 A Polyurethane, MDI-Ester

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Covestro DESMODUR® MDQ23165 + BAYTEC® D22-70MF + BAYTEC® XL B (Catalyst SD6-2) 90 A Polyurethane, MDI-Ester
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	1.01 g/cc	1.01 g/cc	BAYTEC® XL B
	1.17 g/cc	1.17 g/cc	DESMODUR® MDQ23165
	1.17 g/cc	1.17 g/cc	BAYTEC® D22-70MF
	1.25 g/cc	1.25 g/cc
Viscosity	50 cP	50 cP	BAYTEC® XL B
	650 cP	650 cP	BAYTEC® D22-70MF
	1000 cP	1000 cP	DESMODUR® MDQ23165

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	90	90	DIN 53505
	87 @Temperature 80.0 °C	87 @Temperature 176 °F	DIN 53505
	93 @Temperature -5.00 °C	93 @Temperature 23.0 °F	DIN 53505
Tensile Strength at Break	57.0 MPa	8270 psi	DIN 53504
Tensile Stress at Strain	3.00 MPa @Strain 10 %	435 psi @Strain 10 %	DIN 53504
Elongation at Break	600 %	600 %	DIN 53504
100% Modulus	8.20 MPa @Strain 100 %	1190 psi @Strain 100 %	DIN 53504
200% Modulus	11.4 MPa @Strain 200 %	1650 psi @Strain 200 %	DIN 53504
300% Modulus	15.6 MPa @Strain 300 %	2260 psi @Strain 300 %	DIN 53504
Resilience	40	40	[%]; DIN 53512
Tear Strength	58.0 kN/m	331 pli	with nick; ISO 34-1
	107 kN/m	611 pli	without nick; ISO 34-1
Abrasion	50	50	[mm3]; ISO 4649
Compression Set	21 % @Temperature 70.0 °C, Time 79200 sec	21 % @Temperature 158 °F, Time 22.0 hour	ISO 815-1

Processing Properties	Metric	English	Comments
Processing Temperature	35.0 °C	95.0 °F	DESMODUR® MDQ23165
	35.0 °C	95.0 °F	BAYTEC® XL B
	70.0 °C	158 °F	BAYTEC® D22-70MF
Mold Temperature	80.0 °C	176 °F
Pot Life	3.50 min	3.50 min

Descriptive Properties
Appearance	liquid		DESMODUR® MDQ23165
	solid		BAYTEC® D22-70MF
	solid		BAYTEC® XL B
Content	0.15		SD6-2 % / total (by weight), (catalyst at the head)
	100		Parts by weight of prepolymer
	14.1		Parts by weight of BAYTEC® XL B
	16.2-16.6%		NCO
	70		Parts by weight of BAYTEC® D22-70MF

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PCOVEST0453 / 202236

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