Extrusion Processing Guide: TPE – Thermoplastic Elastomers

 Processing Guide: TPE – Thermoplastic Elastomers
 Extruder: Single screw extruder with vacuum
pressure-relieved grooved feeding section (by increased screw pitch and channel depth)
 Screw Design: Barrier screw, 25 – 30 L/D
 Compression Ratio: 3,5:1
 Cylinder Temperatures: 150-185°C
 Melt Temperature: 175-200°C
 Pre-Drying: no,
but 2 hours at 80°C (176°F) if extreme temperature change
 Calibration: no,
but supporting inner pressure if hollow profiles
 Miscellaneous: Breaker plate/screens for higher back pressure and therefore smoother profile surface
Note: This is meant as a general guide. Please consult your material and machinery representative.

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