Berstorff supplies butyl extruder to Carlisle Hardcast

Weesp, Netherlands – Carlisle Hardcast Europe BV located in the Dutch city of Weesp is the only company in Europe to apply a continuous process on a co-rotating twin-screw extruder for the production of hot melt adhesives used for high-quality sealing tapes. The company needs to apply butyl rubber to the tape, but dislikes the batch-wise mixing process.

“The time involved is a major disadvantage of batch processes” explains Theo Steenvoorden, managing director of Carlisle and gives an example: “While the batchwise production of 1000 kg…

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