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

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° 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

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° 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° C

150 - 190° C

170 - 210° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Shore A 0-50

Injection

150 - 180° C

Extrusion

160 - 190° C

Innjection 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

Elastron Injection Troubleshooting Guide

Problem

Flow Marks

Solution

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

Elastron Extrusion Troubleshooting Guide

Problem

Dull / matt surface

Solution

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

Elastron Blow Molding Troubleshooting Guide

Problem

Rough surface

Solution

Increase cylinder temperatures

Increase head/die temperatures

Decrease extrusion speed

Increase mould temperature

Decrease extrusion speed

Decrease hooper side temperature

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