Covestro Texin® 985 Thermoplastic Polyurethanes (TPU)

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Covestro Texin® 985 Thermoplastic Polyurethanes (TPU)
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Texin 985 resin is an aromatic polyether-based thermoplastic polyurethane with a Shore hardness of approximately 85A. It can be processed by injection molding, extrusion, or blow molding. Properties / Applications: Texin 985 resin offers outstanding abrasion resistance, impact strength, toughness, and flexibility. It also exhibits excellent inherent resistance to salt water stress cracking, and hydrolysis. Texin 985 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 985 natural color resin is listed under NSF standard 61 for use in potable water applications. Typical applications include gaskets, hose, tubing, shoe inserts, connectors, belting, and miscellaneous molded articles. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.12 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 D	85	ASTM D2240
Tensile Strength at Break	38.6 MPa	ASTM D412
Tensile Stress at Strain	4.80 MPa @Strain 50 %	ASTM D412
	5.50 MPa @Strain 100 %	ASTM D412
	9.70 MPa @Strain 300 %	ASTM D412
Elongation at Break	590 %	ASTM D412
Flexural Modulus	26.9 MPa @Thickness 584 mm	ASTM D790
	59.0 MPa @Thickness -762 mm	ASTM D790
Compressive Strength	0.300 MPa	2% Deflection; ASTM D 575
	1.00 MPa	5% Deflection; ASTM D 575
	2.10 MPa	10% Deflection; ASTM D 575
	3.10 MPa	15% Deflection; ASTM D 575
	4.30 MPa	20% Deflection; ASTM D 575
	5.50 MPa	25% Deflection; ASTM D 575
	16.5 MPa	50% Deflection; ASTM D 575
Resilience	45	[%], Bayshore; ASTM D2632
Tear Strength	87.6 kN/m	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	30 @Load 1.00 kg	[mg] Loss, H-18; ASTM D3489
Compression Set	16 % @Temperature 23.0 °C, Time 79200 sec	postcured; ASTM D395-B
	19 % @Temperature 23.0 °C, Time 79200 sec	as molded; ASTM D395-B
	40 % @Temperature 70.0 °C, Time 79200 sec	postcured; ASTM D395-B
	80 % @Temperature 70.0 °C, Time 79200 sec	as molded; ASTM D395-B

Thermal Properties	Original Value	Comments
Vicat Softening Point	80.0 °C	Rate A; ASTM D1525
Brittleness Temperature	>= -68.0 °F	ASTM D746
Glass Transition Temp, Tg	-46.0 °C

Processing Properties	Original Value	Comments
Rear Barrel Temperature	177 - 193 °C
Middle Barrel Temperature	182 - 199 °C
Front Barrel Temperature	182 - 204 °C
Nozzle Temperature	185 - 207 °C
Zone 1	182 - 199 °C	Extrusion
Zone 2	182 - 204 °C	Extrusion
Zone 3	182 - 210 °C	Extrusion
Die Temperature	188 - 210 °C	Extrusion
Melt Temperature	190 - 205 °C	Extrusion
	193 - 210 °C	Injection
Mold Temperature	16.0 - 43.0 °C
Injection Pressure	6000 - 15000 psi	Injection
Hold Pressure	4000 - 8000 psi	Injection
Back Pressure	<= 800 psi	Injection
Cushion	0.125 - 0.250 in	Injection

Compliance Properties	Original Value	Comments
FDA	Yes

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