MTI ThermoStran® PP-50G Long Glass Fiber Compound

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MTI ThermoStran® PP-50G Long Glass Fiber Compound
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene with 50% Glass Fiber Filler
Material Notes:	ThermoStran® is custom designed long fiber thermoplastic compound (LFC) engineered to meet specific end use requirements. Continuous fibers are pultruded to yield pellets with fibers equivalent to the pellet length. Fiber / pellet length = 0.5 inches. Properties reported are dry as molded. Processing information: Mold Temperature: Higher mold temperatures are recommended for smoother surface appearance. Nozzle: Shortest length possible and 0.25 inch diameter or larger is recommended. Gates: Gates should be as large as possible and located to eliminate knit line and advantageously align fiber. Runners: Full round runners with 0.25 inch diameter and no sharp corners. Construction Material: Tool steels can be heat treated and polished to increase hardness and wear resistance. A-2 and D-2 steels can be hardened to Rockwell 60 C scale for longer life. Plating: Electroless nickel plating may offer additional wear protection. Information provided by MTI Thermoplastic Composites, Division of Montsinger Technologies, Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.31 g/cc
Filler Content	50 %	Long Glass Fiber

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	16500 psi
Tensile Modulus	1.50e+6 psi
Flexural Strength	24000 psi
Flexural Modulus	1500 ksi
Izod Impact, Notched	5.50 ft-lb/in

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	320 °F

Processing Properties	Original Value	Comments
Rear Barrel Temperature	440 °F
Middle Barrel Temperature	460 °F
Front Barrel Temperature	480 °F
Nozzle Temperature	480 °F
Melt Temperature	480 - 500 °F
Mold Temperature	150 °F
Injection Pressure	10000 psi
Screw Speed	50 - 75 rpm

Descriptive Properties
Nozzle ID	0.25 Inches
Screw Design	20:1 L/D

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PMTIG02 / 53896

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