Covestro DESMODUR®MT3593 + BAYTEC® T20 + BAYTEC® XL B (Catalyst SD6-40), 85 A Polyurethane, MDI- PTMEG

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Covestro DESMODUR®MT3593 + BAYTEC® T20 + BAYTEC® XL B (Catalyst SD6-40), 85 A Polyurethane, MDI- PTMEG
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	0.980 g/cc	0.980 g/cc	BAYTEC® T20
	1.01 g/cc	1.01 g/cc	BAYTEC® XL B
	1.12 g/cc	1.12 g/cc
	1.15 g/cc	1.15 g/cc	DESMODUR® MT3593
Viscosity	30 cP	30 cP	BAYTEC® XL B
	1200 cP	1200 cP	BAYTEC® T20
	2000 cP	2000 cP	DESMODUR® MT2173

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	85	85	DIN 53505
	83 @Temperature 80.0 °C	83 @Temperature 176 °F	DIN 53505
	88 @Temperature -5.00 °C	88 @Temperature 23.0 °F	DIN 53505
Tensile Strength at Break	43.0 MPa	6240 psi	DIN 53504
Tensile Stress at Strain	2.20 MPa @Strain 10 %	319 psi @Strain 10 %	DIN 53504
Elongation at Break	350 %	350 %	DIN 53504
100% Modulus	8.00 MPa @Strain 100 %	1160 psi @Strain 100 %	DIN 53504
200% Modulus	14.0 MPa @Strain 200 %	2030 psi @Strain 200 %	DIN 53504
300% Modulus	28.0 MPa @Strain 300 %	4060 psi @Strain 300 %	DIN 53504
Resilience	37	37	[%]; DIN 53512
Tear Strength	35.0 kN/m	200 pli	with nick; ISO 34-1
	94.0 kN/m	536 pli	without nick; ISO 34-1
Abrasion	20	20	[mm3]; ISO 4649
Compression Set	23 % @Temperature 70.0 °C, Time 79200 sec	23 % @Temperature 158 °F, Time 22.0 hour	ISO 815-1

Processing Properties	Metric	English	Comments
Processing Temperature	45.0 °C	113 °F	BAYTEC® T20
	45.0 °C	113 °F	BAYTEC® XL B
	60.0 °C	140 °F	DESMODUR® MT3593
Mold Temperature	100 °C	212 °F
Pot Life	4.50 min	4.50 min

Descriptive Properties
Appearance	solid		DESMODUR® MT3593
	solid		BAYTEC® T20
	solid		BAYTEC® XL B
Content	0.02		% SD6-40 / total (catalyst at the head)
	100		Parts by weight of prepolymer
	20		Parts by weight of BAYTEC® T20
	8.6		Parts by weight of BAYTEC® XL B
	9.1-9.5%		NCO

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.

PCOVEST0521 / 202304

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