Covestro DESMODUR® TT142L + BAYTEC® XL 1705, 87 A Polyurethane, TDI- PTMEG

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Covestro DESMODUR® TT142L + BAYTEC® XL 1705, 87 A Polyurethane, TDI- PTMEG
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	DESMODUR® TT142L
	1.08 g/cc	1.08 g/cc
	1.21 g/cc	1.21 g/cc	BAYTEC® XL 1705
Viscosity	690 cP	690 cP	BAYTEC® XL 1705
	900 cP	900 cP	DESMODUR® TT142L

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	87	87	DIN 53505
	86 @Temperature 80.0 °C	86 @Temperature 176 °F	DIN 53505
	88 @Temperature -5.00 °C	88 @Temperature 23.0 °F	DIN 53505
Tensile Strength at Break	32.0 MPa	4640 psi	DIN 53504
Tensile Stress at Strain	2.80 MPa @Strain 10 %	406 psi @Strain 10 %	DIN 53504
Elongation at Break	510 %	510 %	DIN 53504
100% Modulus	8.00 MPa @Strain 100 %	1160 psi @Strain 100 %	DIN 53504
200% Modulus	10.4 MPa @Strain 200 %	1510 psi @Strain 200 %	DIN 53504
300% Modulus	13.0 MPa @Strain 300 %	1890 psi @Strain 300 %	DIN 53504
Resilience	50	50	[%]; DIN 53512
Tear Strength	49.0 kN/m	280 pli	with nick; ISO 34-1
	114 kN/m	650 pli	without nick; ISO 34-1
Abrasion	30	30	[mm3]; ISO 4649
Compression Set	35 % @Temperature 70.0 °C, Time 79200 sec	35 % @Temperature 158 °F, Time 22.0 hour	ISO 815-1

Processing Properties	Metric	English	Comments
Processing Temperature	30.0 °C	86.0 °F	BAYTEC® XL 1705
	80.0 °C	176 °F	DESMODUR® TT142L
Mold Temperature	95.0 °C	203 °F
Pot Life	6.25 min	6.25 min

Descriptive Properties
Appearance	liquid		DESMODUR® TT142L
	liquid		BAYTEC® XL 1705
Content	10.2		Parts by weight of BAYTEC® XL 1705
	100		Parts by weight of prepolymer
	4-4.4%		NCO, DESMODUR® TT142L

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PCOVEST0644 / 202427

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