Molding Guidelines

RTP Company provides complete technical support for our specialty compounds, through experienced staff located at each of our eight worldwide plants. Our technical service personnel can evaluate mold design and setup, optimize processing conditions based on material, assist with handling new materials, and investigate and resolve problems.

Standard Molding Equipment

  • Machine Type
  • Machine Size

Molding Conditions

  • Drying
  • Barrel Temperature
  • Melt Temperature
  • Mold Temperature
  • Injection Pressure
  • Back Pressure
  • Injection Speed
  • Screw RPM

General Processing Tips

  • Compounds with Fillers
  • Compounds with Fibers

Tips to Improve Mechanical Properties

  • Tensile Strength
  • Tensile Elongation
  • Flexural Modulus
  • Flexural Strength
  • Notched IZOD Impact
  • Shrinkage
  • Warpage
  • Regrind Usage

Tips to Improve Surface Conductivity

  • Compounds with Conductive Fillers
  • Compounds with Conductive Fibers

Thermoplastic Elastomer Molding Guidelines

Long Fiber Compounds Molding Guidelines

Foaming Agent Molding Guidelines

PLA (Polylactic Acid) Compounds Molding Guidelines


Mold Design

Injection molds must be properly designed to ensure quality plastic components. Mold design impacts productivity and profitability of your molding operation. This section offers guidelines for designing an efficient injection mold.

More Information

For more information, view our Part Design Guidelines for Injection Molded Thermoplastics Brochure…

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