The temperatures and processing conditions listed here are intended as guidelines for molders and designers. In some cases, relatively broad ranges are necessary to accommodate variations in compound formulas.

Injection molding is a complex science; best results may only be achieved after several trials. RTP Company’s technical support specialists can assist you with determining optimum settings for your unique compound.

Which to Use

For quick reference, use the chart below to select a Polymer Type using the dropdown arrow. For additional information, scroll to the material of your choice on this page, and click on the product name for a downloadable PDF.

RTP Series/Polymer Type Temperature Drying Dew Point Moisture Content %
Melt Mold Temp. Hours
English °F
Metric °C

*Hygroscopic materials

This information is intended to be used only as a guideline for designers and processors of modified thermoplastics for injection molding. Because injection mold design and processing is complex, a set solution will not solve all problems. Observation on a “trial and error” basis may be required to achieve desired results. No information supplied to RTP Company constitutes a warranty regarding product performance or use. Any information regarding information or use is only offered as suggestion for investigation for use, based upon RTP or other Company or other customer experience. RTP Company makes no warranties, expressed or implied, concerning the suitability or fitness of any of its products for any particular purpose. It is the responsibility of the customer to determine that the product is safe, lawful and technically suitable for the intended use. The disclosure of information herein is not a license to operate under, or a recommendation to infringe any patents.

RTP 100 Series

Polypropylene (PP)

RTP 200 Series

Nylon 6/6 (PA)

RTP 200 A Series

Nylon 6 (PA)

RTP 200 B Series

Nylon 6/10 (PA)

RTP 200 C Series

Nylon 11 (PA)

RTP 200 D Series

Nylon 6/12 (PA)

RTP 200 E Series

Amorphous Nylon (PA)

RTP 200 F Series

Nylon 12 (PA)

RTP 200 G Series

Nylon 4/6 (PA 4/6)

  • Specialty Compounds

RTP 200 H Series

Impact Modified Nylon 6/6 (PA)

RTP 200 K Series

Polyarylamide (PARA)

  • Specialty Compounds

RTP 300 Series

Polycarbonate (PC)

RTP 400 Series

Polystyrene (PS)

RTP 500 Series

Styrene Acrylonitrile (SAN)

RTP 600 Series

Acrylonitrile Butadiene Styrene (ABS)

RTP 700 Series

High Density Polyethylene (HDPE)

RTP 700 A Series

Low Density Polyethylene (LDPE)

RTP 800 Series

Acetal (POM)

RTP 900 Series

Polysulfone (PSU)

RTP 1000 Series

Polybutylene Terephthalate (PBT)

RTP 1100 Series

Polyethylene Terephthalate (PET)

  • Specialty Compounds

RTP 1100 A Series

Modified Polyethylene Terephalate Glycol (PETG)

  • Specialty Compounds