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?
Our “Specialty Compounds” processing conditions are suitable for use with most products. Alternate processing conditions for particular materials types are provided when available.
Specialty Compounds
Use these general processing conditions with compounds that contain any of the following additives:
- Glass Fillers
- Glass fiber
- Glass bead
- Milled glass
- Mineral Fillers
- Talc
- Calcium carbonate
- Mica
- Flame Retardants
- Lubricants
- Aramid fiber
- PTFE
- Silicone
- Molybdenum disulfide
- Graphite
- Conductive or ESD Prefixed Grades
- Carbon black
- Carbon fiber
EMI/RFI Shielding Compounds
Use EMI shielding processing conditions with compounds that contain either of the following additives:
- Stainless steel fiber
- Nickel-coated carbon fiber
PermaStat® Compounds
Use PermaStat® processing conditions with compounds containing permanently anti-static additives.
Long Fiber Compounds
Use long fiber processing conditions with compounds containing long glass fiber additives.
PermaStat® is a registered trademark of RTP Company
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
RTP 100 Series
Polypropylene (PP)
RTP 200 Series
Nylon 6/6 (PA)
RTP 200 A Series
Nylon 6 (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 600 Series
Acrylonitrile Butadiene Styrene (ABS)
RTP 700 Series
High Density Polyethylene (HDPE)
EMI Shielding Compounds
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