Plastics Group Polifil® M-20 20% Mica-Reinforced Polypropylene

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Plastics Group Polifil® M-20 20% Mica-Reinforced Polypropylene
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene with 20% Mica Filler
Material Notes:	Polifil® M series compounds are homopolymer polypropylene resins reinforced with mica. They combine an improved range of high-stiffness values with low mold shrinkage. These compounds are used in large area broad span applications where high modulus values are required and retained. Standard processing techniques are applicable. Information provided by The Plastics Group.
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Physical Properties	Original Value	Comments

Density	1.05 g/cc	ASTM D792
Filler Content	20 %	ASTM D2584
Linear Mold Shrinkage	0.011 cm/cm @Thickness 1.59 mm	ASTM D955
Melt Flow	8.0 - 12 g/10 min	230/2.16; May be specified; ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	97	ASTM D785
Tensile Strength at Break	4588 psi	ASTM D638
Flexural Modulus	462000 psi	Tangent; ASTM D790
Izod Impact, Notched	0.950 ft-lb/in	At 73°F; ASTM D256
Izod Impact, Unnotched	9.80 ft-lb/in	At 73°F; ASTM D256
Gardner Impact	0.333 ft-lb	ASTM D3029

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	248 °F	ASTM D648

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