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  1. YousufAli

    Required Ventilation to control Isobutane Flammability...PLEASE HELP

    Hi We make Extruded polystyrene foam. I was looking in to converting to a butane based blowing agent from a HCFC based one. I was looking at possible leaks of Isobutane from the die area. One scenario was that the blowing agent came in to the extruder but for some reason the gel did not and...

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