HOME KNOWLEDGE CENTER PROCESSING GUIDES Processing Guides Elastron Processing Guide for Extrusion Elastron Processing Guide for Injection Processing Temperature Range for ELASTRON V SHORE A 0-50 SHORE A 50-90 SHORE D 35-65 INJECTION 150 - 180° C 160 – 190° C 180 – 220° C EXTRUSION 160 – 190° C 170 – 200° C 180 – 220° C * In injection moulding with cored moulds, temperature should be mostly between 40 - 60° C, injection moulding with standard moulds, temperature should be between 20 - 40° C. * In extrusion process, mould temperature should be 5-10° C higher than nozzle temperature. * Drying is required before processing. * According to the design of screws used in machines, temperatures can vary +/- 10° C. Processing Temperature Range for ELASTRON G SHORE A 0-50 SHORE A 50-90 SHORE D 35-65 INJECTION 150 - 180° C 160 – 190° C 180 – 220° C EXTRUSION 160 – 190° C 170 – 200° C 180 – 220° C * In injection moulding with cored moulds, temperature should be mostly between 40 - 60° C, injection moulding with standard moulds, temperature should be between 20 - 40° C. * In extrusion process, mould temperature should be 5-10° C higher than nozzle temperature. * Drying is recommended for some grades and in some conditions before processing. * According to the design of screws used in machines, temperatures can vary +/- 10° C. Processing Temperature Range for ELASTRON D SHORE A 0-50 SHORE A 50-90 SHORE D 35-65 INJECTION 120 - 160° C 140 – 180° C 170 – 200° C EXTRUSION 130 - 170° 150 - 190° 170 - 210° * In injection moulding with cored moulds, temperature should be mostly between 10° - 30° C, injection moulding with standard moulds temperature should be between 10° - 20° C. * In extrusion process, mould temperature should be 5-10° C higher than nozzle temperature. * Drying is not required before processing. * According to the design of screws used in machines, temperatures can vary +/- 10° C. Processing Temperature Range for ELASTRON TPO SHORE A 0-50 SHORE A 50-90 SHORE D 35-65 INJECTION 150 – 190° C 170 – 200° C 180 – 220° C EXTRUSION 160 – 200° C 180 – 210° C 190 – 230° C * In injection moulding with cored moulds, temperature should be mostly between 10° - 30° C, injection moulding with standard moulds temperature should be between 10° - 20° C. * In extrusion process, mould temperature should be 5-10° C higher than nozzle temperature. * Drying is not required before processing. * According to the design of screws used in machines, temperatures can vary +/- 10° C. ELASTRON TROUBLESHOOTING GUIDE I - ELASTRON INJECTION TROUBLESHOOTING GUIDE Problem Solution Flow Marks Dry the material at 90° C for 2 hours Control the gas outlet in the mould Increase injection speed step by step Increase mould temperature Voids Dry the material at 90° C for 2 hours Increase mould temperature Open a degasing channel in unfilled area of the mould Apply high pressure and low speed Burning Dry the material at 90° C for 2 hours Reduce the speed of injection Enlarge degasing unit outlets in the mould Sticking in mould Check cooling water temperature Decrease mold temperature Erode injection parts Sink Marks Increase back pressure Increase injection pressure Increase hold pressure and time Poor or no adhesion in co-injection Dry the material at 90° C for 2 hours Adjust the melt temperature to max Increase injection speed Odour and yellowing Dry the material at 90° C for 2 hours Decrease back-pressure Adjust the melt temperature to min II - ELASTRON EXTRUSION TROUBLESHOOTING GUIDE Problem Solution Dull / matt surface Increase head/die temperature Increase melt temperature Increase compression ratio Low output Increase screw speed Decrease compression ratio Dry the material at 90° C for 2 hours Decrease screen pack Increase head/die temperature Poor or no adhesion in co-extrusion Increase melt temperature Increase die compression III - ELASTRON BLOW MOULDING TROUBLESHOOTING GUIDE Problem Solution Rough surface Increase cylinder temperatures Increase head/die temperatures Decrease extrusion speed Increase mould temperature Decrease hooper side temperature Use higher compression screws Blow parts with unmelt particles Increase cylinder temperatures Increase head/die temperatures Decrease extrusion speed Increase back pressure Use higher compression screws Blow problems Dry the material at 90° C for 2 hours Dry regrind Increase or decrease back pressure Increase parison wall thickness Unstable parison Decrease cylinder temperature Decrease head/die temperatures Clean the die Parison is running to one side Decrease cylinder temperature Decrease head/die temperatures Clean the die Flashing Decrease melt temperature Decrease blow pressure Increase clamp force Contamination in parison/part Purge to remove degraded material Decrease the barrel/head temperature Reduce cycle time Weld Lines Increase melt temperature Increase die temperature Clean head and die KNOWLEDGE CENTER What is TPE (Thermoplastic Elastomer)? 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