A. Schulman Fiberfil® J-68/10/E Polypropylene Copolymer, 10% Glass Fiber Reinforced, Chemically coupled

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A. Schulman Fiberfil® J-68/10/E Polypropylene Copolymer, 10% Glass Fiber Reinforced, Chemically coupled
Categories:	Polymer; Thermoplastic; Polypropylene (PP)
Material Notes:	Information provided by FIBERFIL Engineered Plastics, now an A. Schulman product line.
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Physical Properties	Metric	English	Comments

Specific Gravity	0.970 g/cc	0.970 g/cc	ASTM D792
Water Absorption	0.020 %	0.020 %	24 hr; ASTM D570
Linear Mold Shrinkage	0.0030 - 0.0050 cm/cm @Thickness 3.17 mm	0.0030 - 0.0050 in/in @Thickness 0.125 in	ASTM D955
	0.0040 - 0.0060 cm/cm @Thickness 6.35 mm	0.0040 - 0.0060 in/in @Thickness 0.250 in	ASTM D955
Melt Flow	13 g/10 min	13 g/10 min	230/2.16 (typical); ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	85	85	ASTM D785
Tensile Strength, Yield	33.1 MPa	4800 psi	ASTM D638
Elongation at Yield	9.0 %	9.0 %	ASTM D638
Tensile Modulus	1.65 GPa	240 ksi	ASTM D638
Flexural Strength	40.0 MPa	5800 psi	ASTM D790
Flexural Modulus	1.52 GPa	220 ksi	Tangent; ASTM D790
Izod Impact, Notched	1.49 J/cm @Thickness 3.17 mm	2.80 ft-lb/in @Thickness 0.125 in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	135 °C	275 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	129 °C	265 °F	ASTM D648

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	199 - 210 °C	390 - 410 °F
Middle Barrel Temperature	204 - 227 °C	400 - 440 °F
Front Barrel Temperature	182 - 199 °C	360 - 390 °F
Nozzle Temperature	182 - 193 °C	360 - 380 °F
Melt Temperature	199 - 232 °C	390 - 450 °F
Mold Temperature	32.2 - 71.1 °C	90.0 - 160 °F
Drying Temperature	76.7 °C	170 °F	Drying not normally required
Dry Time	2 hour	2 hour	Drying not normally required
Moisture Content	<= 0.20 %	<= 0.20 %	recommended for molding
Back Pressure	0.000 - 0.689 MPa	0.000 - 100 psi

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PFIBFIL04 / 38189

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