Covestro Texin® RxS285 Thermoplastic Polyurethanes (TPU)

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Covestro Texin® RxS285 Thermoplastic Polyurethanes (TPU)
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Characterization: Texin RxS285 resin is an aromatic polyester-based thermoplastic polyurethane. It can be processed by injection molding, extrusion or blow molding. Properties / Applications: Texin RxS285 offers outstanding abrasion resistance, impact strength, toughness and flexibility. Typical medical applications include dental ligature, tubing and luers. As with any product, the use of Texin RxS285 resin in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.202 g/cc	ASTM D792
Linear Mold Shrinkage, Flow	0.0080 cm/cm @Thickness 2.54 mm	ASTM D955
Linear Mold Shrinkage, Transverse	0.0080 cm/cm @Thickness 2.54 mm	ASTM D955
Melt Flow	4.0 g/10 min @Load 8.70 kg, Temperature 190 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore A	85	ASTM D2240
Tensile Strength at Break	37.9 MPa	ASTM D412
Tensile Stress at Strain	5.34 MPa @Strain 100 %	ASTM D412
	13.1 MPa @Strain 300 %	ASTM D412
Elongation at Break	500 %	ASTM D412
Flexural Modulus	27.6 MPa	ASTM D790
Tear Strength	87.6 kN/m	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	35 @Load 1.00 kg	[mg] Loss, H-18; ASTM D3489
Compression Set	12 % @Temperature 23.0 °C, Time 79200 sec	postcured; ASTM D395-B
	35 % @Temperature 70.0 °C, Time 79200 sec	postcured; ASTM D395-B

Thermal Properties	Original Value	Comments
Vicat Softening Point	91.0 °C	Rate A; ASTM D1525

Optical Properties	Original Value	Comments
Yellow Index	<= 15 %	ASTM E313

Processing Properties	Original Value	Comments
Rear Barrel Temperature	182 - 199 °C	Injection
	182 - 199 °C	Extrusion
Middle Barrel Temperature	182 - 204 °C	Injection
	182 - 204 °C	Extrusion
Front Barrel Temperature	182 - 210 °C	Injection
	182 - 210 °C	Extrusion
Nozzle Temperature	188 - 213 °C	Injection
Die Temperature	188 - 210 °C	Extrusion
Melt Temperature	191 - 204 °C	Extrusion
	196 - 207 °C	Injection
Mold Temperature	16.0 - 43.0 °C	Injection
Injection Pressure	6000 - 15000 psi	Injection
Back Pressure	<= 800 psi	Injection
Cushion	<= 0.125 in	Injection

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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