Covestro Texin® 990 Thermoplastic Polyurethanes (TPU)

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Covestro Texin® 990 Thermoplastic Polyurethanes (TPU)
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Texin 990 resin is a polyether-based thermoplastic polyurethane with a Shore hardness of approximately 90A. It can be processed by injection molding, extrusion, or blow molding. Properties / Applications Texin 990 resin offers outstanding abrasion resistance, impact strength, toughness, and flexibility. It also exhibits excellent inherent resistance to salt water stress cracking, and hydrolysis. Texin 990 natural color resin complies with FDA food-contact regulations 21 CFR 177.1680 (Polyurethane Resins) and 177.2600 (Rubber Articles Intended for Repeated Use), subject to the limitations of these and any other applicable regulations. In addition, Texin 990 natural color resin is listed under NSF standard 61 for use in potable water applications. Typical applications include belting, hose, seals and gaskets, tubing, cable and hose jackets, athletic soles, casters, film, extruded profiles and miscellaneous molded articles. Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	1.13 g/cc	1.13 g/cc	ASTM D792
Linear Mold Shrinkage, Flow	0.0080 cm/cm @Thickness 2.54 mm	0.0080 in/in @Thickness 0.100 in	ASTM D955
Linear Mold Shrinkage, Transverse	0.0080 cm/cm @Thickness 2.54 mm	0.0080 in/in @Thickness 0.100 in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	90	90	ASTM D2240
Hardness, Shore D	36	36	ASTM D2240
Tensile Strength at Break	41.4 MPa	6000 psi	ASTM D412
Tensile Stress at Strain	6.20 MPa @Strain 100 %	899 psi @Strain 100 %	ASTM D412
	6.90 MPa @Strain 50 %	1000 psi @Strain 50 %	ASTM D412
	7.65 MPa @Strain 100 %	1110 psi @Strain 100 %	ASTM D412
	11.7 MPa @Strain 300 %	1700 psi @Strain 300 %	ASTM D412
	14.5 MPa @Strain 300 %	2100 psi @Strain 300 %	ASTM D412
Elongation at Break	520 %	520 %	ASTM D412
Flexural Modulus	0.0414 GPa	6.00 ksi	ASTM D790
Compressive Strength	0.700 MPa	102 psi	2% Deflection; ASTM D 575
	1.70 MPa	247 psi	5% Deflection; ASTM D 575
	3.10 MPa	450 psi	10% Deflection; ASTM D 575
	4.50 MPa	653 psi	15% Deflection; ASTM D 575
	5.90 MPa	856 psi	20% Deflection; ASTM D 575
	7.20 MPa	1040 psi	25% Deflection; ASTM D 575
	19.3 MPa	2800 psi	50% Deflection; ASTM D 575
Resilience	32	32	[%], Bayshore; ASTM D2632
	40	40	[%], Bayshore; ASTM D2632
Tear Strength	87.66 kN/m	500.2 pli	Die C; ASTM D624
	96.3 kN/m	549 pli	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	25 @Load 1.00 kg	25 @Load 2.20 lb	[mg] Loss, H-18; ASTM D3489
	25 @Load 1.00 kg	25 @Load 2.20 lb	[mg] Loss, H-18; ASTM D3489
Compression Set	13 % @Temperature 23.0 °C, Time 79200 sec	13 % @Temperature 73.4 °F, Time 22.0 hour	postcured; ASTM D395-B
	13 % @Temperature 23.0 °C, Time 79200 sec	13 % @Temperature 73.4 °F, Time 22.0 hour	postcured; ASTM D395-B
	20 % @Temperature 23.0 °C, Time 79200 sec	20 % @Temperature 73.4 °F, Time 22.0 hour	as molded; ASTM D395-B
	35 % @Temperature 70.0 °C, Time 79200 sec	35 % @Temperature 158 °F, Time 22.0 hour	postcured; ASTM D395-B
	37 % @Temperature 70.0 °C, Time 79200 sec	37 % @Temperature 158 °F, Time 22.0 hour	postcured; ASTM D395-B
	75 % @Temperature 70.0 °C, Time 79200 sec	75 % @Temperature 158 °F, Time 22.0 hour	as molded; ASTM D395-B

Thermal Properties	Metric	English	Comments
Vicat Softening Point	106 °C	223 °F	Rate A; ASTM D1525
Brittleness Temperature	>= -55.6 °C	>= -68.0 °F	ASTM D746
Glass Transition Temp, Tg	-44.0 °C	-47.2 °F
	-40.0 °C	-40.0 °F

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	180 - 200 °C	356 - 392 °F	Injection
	182 - 199 °C	360 - 390 °F	Extrusion
	185 - 199 °C	365 - 390 °F	Injection
Middle Barrel Temperature	180 - 205 °C	356 - 401 °F	Injection
	182 - 204 °C	360 - 399 °F	Injection
	185 - 210 °C	365 - 410 °F	Extrusion
Front Barrel Temperature	180 - 210 °C	356 - 410 °F	Injection
	182 - 210 °C	360 - 410 °F	Injection
	185 - 215 °C	365 - 419 °F	Extrusion
Nozzle Temperature	185 - 215 °C	365 - 419 °F	Injection
	188 - 213 °C	370 - 415 °F	Injection
Zone 1	182 - 199 °C	360 - 390 °F	Extrusion
Zone 2	193 - 210 °C	379 - 410 °F	Extrusion
Zone 3	193 - 216 °C	379 - 421 °F	Extrusion
Die Temperature	190 - 215 °C	374 - 419 °F	Extrusion
Melt Temperature	193 - 210 °C	379 - 410 °F	Injection
	202 - 216 °C	396 - 421 °F	Extrusion
Mold Temperature	16.0 - 43.0 °C	60.8 - 109 °F	Injection
Injection Pressure	41.4 - 96.5 MPa	6000 - 14000 psi	Injection
Hold Pressure	27.6 - 55.2 MPa	4000 - 8000 psi	Injection
Back Pressure	<= 1.38 MPa	<= 200 psi	Injection
	<= 5.52 MPa	<= 800 psi	Injection
Cushion	<= 0.317 cm	<= 0.125 in	Injection
	0.317 - 0.635 cm	0.125 - 0.250 in	Injection

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes

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PCOVEST0986 / 202769

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