Gromax 1140LH TPE

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Gromax 1140LH TPE
Categories:	Polymer; Thermoplastic; Elastomer, TPE
Material Notes:	Product Description: 1140LH is Low modulus grade with nominal Durometer hardness of 40D. It contains color stable antioxidants. It can be processed by thermoplastic processing techniques like injection molding and extrusion molding grade. Characteristics: Excellent low modulus for injection molding and extrusion molding grade. Excellent flexibility and fatigue resistance. Excellent creep resistance. Excellent low shrinkage and higher melting temperature Information provided by Gromax Enterprises Corp.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.146 g/cc	1.146 g/cc	ISO 1183
Moisture Absorption	0.500 % @Time 86400 sec	0.500 % @Time 24.0 hour	ISO 62
Linear Mold Shrinkage	0.065 cm/cm	0.065 in/in	ISO 294-4
Melt Flow	30 g/10 min @Load 2.16 kg, Temperature 230 °C	30 g/10 min @Load 4.76 lb, Temperature 446 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	40	40	ISO 868
Tensile Strength	19.6 MPa	2840 psi	ISO 527
Elongation at Break	460 %	460 %	ISO 527
Tensile Modulus	0.115 GPa	16.7 ksi	ISO 527
Flexural Modulus	0.113 GPa	16.4 ksi	ISO 178
Charpy Impact, Notched	NB	NB	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	4.88e+12 ohm-cm	4.88e+12 ohm-cm	IEC 60093
Surface Resistance	8.10e+13 ohm	8.10e+13 ohm	IEC 60093
Dielectric Strength	16.4 kV/mm @Thickness 2.00 mm	417 kV/in @Thickness 0.0787 in	IEC 60243-1

Thermal Properties	Metric	English	Comments
Melting Point	207 °C	405 °F	ISO 3146C

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	210 - 220 °C	410 - 428 °F
Middle Barrel Temperature	220 - 250 °C	428 - 482 °F
Front Barrel Temperature	220 - 250 °C	428 - 482 °F
Nozzle Temperature	220 - 250 °C	428 - 482 °F
Mold Temperature	20.0 - 50.0 °C	68.0 - 122 °F
Injection Pressure	30.0 - 100 MPa @Time 2.00 - 10.0 sec	4350 - 14500 psi @Time 0.000556 - 0.00278 hour
Hold Pressure	5.00 - 40.0 MPa @Time 10.0 - 30.0 sec	725 - 5800 psi @Time 0.00278 - 0.00833 hour
Screw Speed	40 - 80 rpm	40 - 80 rpm

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PGROM049 / 147862

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