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Ferro Gapex® RPP20EU31UL 20% Fiberglass Reinforced, Chemically-Coupled, Impact-Modified Polypropylene

 

Subcategory: Polypropylene; Thermoplastic; Polymer

Material Notes:
20% Fiberglass Reinforced, Chemically-Coupled, Impact-Modified Polypropylene

Description: Black

Comments:
Testing and measurements were performed at 73 ± 3°F and 50± 5% relative humidity unless otherwise noted.
Filler Content: 20%; ASTM D2584
Material Pre-dry: Normally it is not necessary to pre-dry this material. However, if conditions dictate drying to optimize material properties and part appearance then dry in a desiccant dryer at 180°F for 2-3 hours or 160°F for >4 hours.
Manifolds: Maintain manifolds, runners and tips 10 to 20°F above the front one temperature to allow easier filling. (Gate drool is best eliminated using screw decompression rather than reducing tip temperature.)
Back Pressure (Range): 20-50 psi. Injection Speed: medium to slow > depending on surface appearance. Screw Speed: medium. Injection Pressure: Adjust to just above a short shot. Injection Time: Adjust to just above a short shot. Cushion (Range): 0.2-0.5 in. Nozzle Type: Free flowing/Standard.
Some conditions may have to be altered to obtain acceptable parts. Please do not run too cold, molded in stress and rough surface may become a problem. If you must run below melt or temperatures recommended for dimensional precision you may compromise impact and esthetics. Retest parts to confirm performance.

Data provided by Ferro Corporation - Specialty Plastics Group.

Available Properties
  • Density
  • Linear Mold Shrinkage
  • Melt Flow
  • Tensile Strength, Ultimate
  • Elongation at Break
  • Flexural Modulus
  • Flexural Yield Strength
  • Izod Impact, Unnotched
  • Gardner Impact @ 23°C
  • Izod Impact, Notched
  • Deflection Temperature at 0.46 MPa (66 psi)
  • Deflection Temperature at 1.8 MPa (264 psi)
  • Rear Barrel Temperature
  • Middle Barrel Temperature
  • Front Barrel Temperature
  • Nozzle Temperature
  • Mold Temperature
  • Drying Temperature
  • Dry Time
  • Color
  
Property Data

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