Covestro Texin® 288 Thermoplastic Polyurethanes (TPU)

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Covestro Texin® 288 Thermoplastic Polyurethanes (TPU)
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Characterization: Texin 288 is an aromatic polyester-based thermoplastic polyurethane with a hardness of approximately 88A. It can be processed by injection molding. Extrusion processes are also possible for some applications. Properties / Applications: Texin 288 resin is characterized by excellent low-temperature properties and excellent fuel and oil resistance. It also offers outstanding abrasion resistance, impact strength, toughness and flexibility. Typical applications include casters, couplings, sleeves, gears, bushings, industrial components and identification tags. As with any product, use of Texin 288 resin in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.20 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

Mechanical Properties	Original Value	Comments
Hardness, Shore A	88	ASTM D2240
Hardness, Shore D	38	ASTM D2240
Tensile Strength at Break	46.9 MPa	ASTM D412
Tensile Stress at Strain	6.90 MPa @Strain 100 %	ASTM D412
	20.0 MPa @Strain 300 %	ASTM D412
Elongation at Break	500 %	ASTM D412
Flexural Modulus	46.2 MPa	ASTM D790
Resilience	41	[%], Bayshore; ASTM D2632
Tear Strength	105.1 kN/m	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	40 @Load 1.00 kg	[mg] Loss, H-18; ASTM D3489
Compression Set	12 % @Temperature 23.0 °C, Time 79200 sec	postcured; ASTM D395-B
	15 % @Temperature 23.0 °C, Time 79200 sec	as molded; ASTM D395-B
	21 % @Temperature 70.0 °C, Time 79200 sec	postcured; ASTM D395-B
	52 % @Temperature 70.0 °C, Time 79200 sec	as molded; ASTM D395-B

Thermal Properties	Original Value	Comments
Vicat Softening Point	135 °C @Load 1.02 kg	Rate A, 0.125 in, 0.833°C/min; ASTM D1525
Glass Transition Temp, Tg	-45.0 °C

Processing Properties	Original Value	Comments
Rear Barrel Temperature	190 - 210 °C
Middle Barrel Temperature	190 - 215 °C
Front Barrel Temperature	200 - 220 °C
Nozzle Temperature	205 - 225 °C
Melt Temperature	205 - 215 °C
Mold Temperature	15.0 - 40.0 °C
Injection Pressure	6000 - 15000 psi
Back Pressure	<= 200 psi
Cushion	<= 0.125 in

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PCOVEST0980 / 202763

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