Covestro Desmodur® MS-090 + Baytec XL B/Baytec XL HQEE, 96A/60 D Polyurethane, MDI- Ester

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Covestro Desmodur® MS-090 + Baytec XL B/Baytec XL HQEE, 96A/60 D Polyurethane, MDI- Ester
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Characteristics: Properties: Excellent wear resistance Outstanding tensile strength & tear Superior load bearing ability Good solvent resistance Enhanced damping properties Comments: Suitable for chopper cots, die-cut pads Production of gear wheels, & scraper blades Vibration damping applications Improved temperature resistance with HQEE Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.19 g/cc	Desmodur MS-090
Viscosity	8.0 cP	Baytec XL B
	900 cP	Desmodur MS-090

Mechanical Properties	Original Value	Comments
Hardness, Shore A	96	ASTM D2240
Hardness, Shore D	60	ASTM D412
Tensile Strength at Break	38.6 MPa	ASTM D412
Elongation at Break	350 %	ASTM D412
100% Modulus	0.0138 GPa @Strain 100 %	ASTM D412
200% Modulus	0.0241 GPa @Strain 200 %	ASTM D412
300% Modulus	0.0296 GPa @Strain 300 %	ASTM D412
Compressive Strength	66.2 MPa @Strain 50 %	ASTM D575
Resilience	34	[%], Bayshore; ASTM D2632
Tear Strength	550 pli	Split; ASTM D1938
	800 pli	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	45 @Load 1.00 kg	H-18 wheel; ASTM D4060
Compression Set	35 % @Temperature 70.0 °C, Time 79200 sec	ASTM D395-B

Processing Properties	Original Value	Comments
Processing Temperature	60.0 °C	Baytec XL B
	80.0 °C	Desmodur MS-090
	110 °C	Baytec XL HQEE
Mold Temperature	110 °C
Pot Life	3.00 - 7.00 min

Descriptive Properties
Appearance	liquid	Baytec XL B
	solid	Desmodur MS-090
	solid	Baytec XL HQEE
Content	100	Parts by weight of Desmodur prepolymer
	30.32	Parts by weight of Baytec XL HQEE*
	45 EW	NCO, Baytec XL B
	8.85-9.24%	NCO, Desmodur MS-090
	99 EW	NCO, Baytec XL HQEE

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PCOVEST0501 / 202284

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