Covestro Texin® 285 Thermoplastic Polyurethanes (TPU)

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Covestro Texin® 285 Thermoplastic Polyurethanes (TPU)
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Texin 285 resin is an aromatic polyester-based thermoplastic polyurethane with a Shore hardness of approximately 85A. It can be processed by injection molding, extrusion, and blow molding. Properties / Applications: In addition to good clarity, Texin 285 resin offers outstanding abrasion resistance, impact strength, toughness, and exibility. Texin 285 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. Typical applications include belting, tubing, hose, cable jackets, hose jackets, seals, athletic soles, casters, mine screens, film, and extruded profiles. Texin 285 resin can also be used as a polymer modifier. Information provided by Covestro
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Physical Properties	Metric	English	Comments

Specific Gravity	1.20 g/cc	1.20 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	85	85	ASTM D2240
Tensile Strength at Break	37.9 MPa	5500 psi	ASTM D412
Tensile Stress at Strain	5.00 MPa @Strain 50 %	725 psi @Strain 50 %	ASTM D412
	5.30 MPa @Strain 100 %	769 psi @Strain 100 %	ASTM D412
	13.1 MPa @Strain 300 %	1900 psi @Strain 300 %	ASTM D412
Elongation at Break	500 %	500 %	ASTM D412
Flexural Modulus	0.0276 GPa @Temperature 23.0 °C	4.00 ksi @Temperature 73.4 °F	ASTM D790
	0.0496 GPa @Temperature -30.0 °C	7.19 ksi @Temperature -22.0 °F	ASTM D790
Compressive Strength	0.300 MPa	43.5 psi	2% Deflection; ASTM D 575
	1.00 MPa	145 psi	5% Deflection; ASTM D 575
	2.20 MPa	319 psi	10% Deflection; ASTM D 575
	3.30 MPa	479 psi	15% Deflection; ASTM D 575
	4.30 MPa	624 psi	20% Deflection; ASTM D 575
	5.70 MPa	827 psi	25% Deflection; ASTM D 575
	15.0 MPa	2180 psi	50% Deflection; ASTM D 575
Resilience	45	45	[%], Bayshore; ASTM D2632
Tear Strength	87.6 kN/m	500 pli	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	35 @Load 1.00 kg	35 @Load 2.20 lb	[mg] Loss, H-18; ASTM D3489
Compression Set	12 % @Temperature 23.0 °C, Time 79200 sec	12 % @Temperature 73.4 °F, Time 22.0 hour	postcured; ASTM D395-B
	16 % @Temperature 23.0 °C, Time 79200 sec	16 % @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
	65 % @Temperature 70.0 °C, Time 79200 sec	65 % @Temperature 158 °F, Time 22.0 hour	as molded; ASTM D395-B

Thermal Properties	Metric	English	Comments
Vicat Softening Point	91.0 °C	196 °F	Rate A; ASTM D1525
Brittleness Temperature	>= -55.6 °C	>= -68.0 °F	ASTM D746
Glass Transition Temp, Tg	-42.0 °C	-43.6 °F
UL RTI, Electrical	50.0 °C	122 °F	UL 746B
UL RTI, Mechanical with Impact	50.0 °C	122 °F	UL 746B
UL RTI, Mechanical without Impact	50.0 °C	122 °F	UL 746B
Flammability, UL94	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in
	V-2 @Thickness 3.00 mm	V-2 @Thickness 0.118 in

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	180 - 200 °C	356 - 392 °F	Injection
	180 - 200 °C	356 - 392 °F	Extrusion
Middle Barrel Temperature	180 - 205 °C	356 - 401 °F	Injection
	180 - 205 °C	356 - 401 °F	Extrusion
Front Barrel Temperature	180 - 210 °C	356 - 410 °F	Injection
	180 - 210 °C	356 - 410 °F	Extrusion
Nozzle Temperature	185 - 210 °C	365 - 410 °F	Injection
Adapter Temperature	180 - 210 °C	356 - 410 °F	Extrusion
Die Temperature	185 - 210 °C	365 - 410 °F	Extrusion
Melt Temperature	190 - 205 °C	374 - 401 °F	Extrusion
	195 - 205 °C	383 - 401 °F	Injection
Mold Temperature	15.0 - 40.0 °C	59.0 - 104 °F
Injection Pressure	41.4 - 103 MPa	6000 - 15000 psi	Injection
Back Pressure	<= 1.38 MPa	<= 200 psi	Injection
Cushion	<= 0.317 cm	<= 0.125 in	Injection

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes

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PCOVEST0979 / 202762

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