Polyplastics

https://www.polyplastics.com
From Polyplastics
Series of ISBM-molded HDPE/COC bottles produced at increasing preform reheat temperatures. The highlighted region (~131–137°C), near HDPE’s melting point, shows the optimal processing window where bottle formation is stable and wall distribution is uniform. Bottles outside this temperature range exhibit distortion or instability, illustrating the narrow thermal alignment required for successful HDPE/COC ISBM processing.
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