Plastics Group Polifil® RMT-40 40% Talc-Reinforced Polypropylene, High Impact

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Plastics Group Polifil® RMT-40 40% Talc-Reinforced Polypropylene, High Impact
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene with 40% Talc Filler
Material Notes:	Polifil® RMT series compounds are high impact polypropylenes reinforced with asbestos-free talc. In addition to high impact strength, they possess a high flex modulus and high heat deflection resistance. These compounds are used in automotive applications and conform to the requirements of the FMVSS-302. Standard processing techniques are applicable. Information provided by The Plastics Group.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.24 g/cc	1.24 g/cc	ASTM D792
Density	1.24 g/cc	0.0448 lb/in³	ASTM D792
Filler Content	40 %	40 %	ASTM D2584
	40.0 %	40.0 %	TPG WI
Water Absorption	0.000 % @Time 86400 sec	0.000 % @Time 24.0 hour	ASTM D570
Linear Mold Shrinkage	0.00900 cm/cm @Thickness 3.17 mm	0.00900 in/in @Thickness 0.125 in	ASTM D955
	0.011 cm/cm @Thickness 1.59 mm	0.011 in/in @Thickness 0.0625 in	ASTM D955
Melt Flow	8.0 - 12 g/10 min	8.0 - 12 g/10 min	230/2.16; May be specified; ASTM D1238
	8.00 - 12.0 g/10 min @Load 2.16 kg, Temperature 230 °C	8.00 - 12.0 g/10 min @Load 4.76 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	87	87	ASTM D785
Hardness, Shore D	74.0	74.0	ASTM D1415
Tensile Strength at Break	25.9 MPa	3750 psi	ASTM D638
Tensile Strength	26.2 MPa	3800 psi	ASTM D638
Elongation at Break	18.0 %	18.0 %	ASTM D638
Elongation at Yield	6.00 %	6.00 %	ASTM D638
Tensile Modulus	2.34 GPa	340 ksi	ASTM D638
Flexural Strength	44.8 MPa	6500 psi	ASTM D790
Flexural Modulus	2.48 GPa	360 ksi	tangent; ASTM D790
	2.90 GPa	420 ksi	Tangent; ASTM D790
Izod Impact, Notched	0.427 J/cm	0.800 ft-lb/in	ASTM D256
	0.641 J/cm	1.20 ft-lb/in	At 73°F; ASTM D256
Izod Impact, Unnotched	3.52 J/cm	6.60 ft-lb/in	At 73°F; ASTM D256
Gardner Impact	4.519 J	3.333 ft-lb	ASTM D3029
	4.52 J @Thickness 12.7 mm	3.33 ft-lb @Thickness 0.500 in	tup; ASTM D5420

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	118 °C	245 °F	ASTM D648
	127 °C	260 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	62.8 °C	145 °F	ASTM D648
Flammability, UL94	HB	HB

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	199 - 210 °C	390 - 410 °F
Middle Barrel Temperature	210 - 221 °C	410 - 430 °F
Front Barrel Temperature	221 - 232 °C	430 - 450 °F
Nozzle Temperature	227 - 232 °C	440 - 450 °F
Melt Temperature	204 - 260 °C	400 - 500 °F
Mold Temperature	10.0 - 26.7 °C	50.0 - 80.0 °F
Drying Temperature	180 - 220 °C @Time 3600 - 7200 sec	356 - 428 °F @Time 1.00 - 2.00 hour
Back Pressure	0.345 - 0.689 MPa	50.0 - 100 psi
Screw Speed	50.0 - 100 rpm	50.0 - 100 rpm

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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