Thermoplastic Elastomer Molding Guidelines:
TPE Design Considerations
- Press Tonnage
2.0 to 3.0 tons (1.8 MT-2.7 MT) of clamp per square inch projected total surface area.
- Barrel Size
Individual shot size to be 40% – 80% of molding machine barrel capacity.
- Maximum Residence Time
Maximum of 4 to 5 minutes (in the barrel).
- Screw Selection
General purpose screws are acceptable.
- Nozzle Diameter
Must be slightly smaller than the sprue base diameter in mold runner system being run.