Covestro DESMODUR® MTR31130 + BAYTEC® RT9234, 70 D Polyurethane, MDI- PTMEG

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Covestro DESMODUR® MTR31130 + BAYTEC® RT9234, 70 D 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	0.950 g/cc	0.950 g/cc	BAYTEC® RT9234, B
	1.02 g/cc	1.02 g/cc	BAYTEC® RT9234, A
	1.10 g/cc	1.10 g/cc	DESMODUR® MTR31130
	1.16 g/cc	1.16 g/cc
Viscosity	75 cP	75 cP	BAYTEC® RT9234, B
	750 cP	750 cP	BAYTEC® RT9234, A
	800 cP	800 cP	DESMODUR® MTR31130

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	70	70	DIN 53505
	64 @Temperature 80.0 °C	64 @Temperature 176 °F	DIN 53505
	74 @Temperature -5.00 °C	74 @Temperature 23.0 °F	DIN 53505
Tensile Strength at Break	44.0 MPa	6380 psi	DIN 53504
Tensile Stress at Strain	22.6 MPa @Strain 10 %	3280 psi @Strain 10 %	DIN 53504
Elongation at Break	215 %	215 %	DIN 53504
100% Modulus	28.9 MPa @Strain 100 %	4190 psi @Strain 100 %	DIN 53504
200% Modulus	51.2 MPa @Strain 200 %	7430 psi @Strain 200 %	DIN 53504
Resilience	50	50	[%]; DIN 53512
Tear Strength	76.0 kN/m	434 pli	with nick; ISO 34-1
	153 kN/m	873 pli	without nick; ISO 34-1
Abrasion	55	55	[mm3]; ISO 4649

Processing Properties	Metric	English	Comments
Processing Temperature	45.0 °C	113 °F	DESMODUR® MTR31130
	45.0 °C	113 °F	BAYTEC® RT9234, A
	45.0 °C	113 °F	BAYTEC® RT9234, B
Pot Life	10.0 min	10.0 min

Descriptive Properties
Appearance	liquid		DESMODUR® MTR31130
	solid		BAYTEC® RT9234, A
	solid		BAYTEC® RT9234, B
Content	100		Parts by weight of prepolymer
	12.9-13.3%		NCO, DESMODUR® MTR31130
	43.5		Parts by weight of BAYTEC®RT923x

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PCOVEST0554 / 202337

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