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 302-365°F  Melt Temperature: 175-200°C 347-392°F  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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