Hi, The ice water is used as it slows the themochemical reaction the epoxy resin. The resin used for this video is a fast setting resin as we were working in a studio and could not use a boiler to force cure a slow reacting resin. The work time of this resin at 20 degrees is only 15min and ambient cure at 3hrs. Usually a resin of between 40 min to 1 hr work time is used for inversion lining installations to prevent hot (cooked and hardend sections) spots in the liner as when its loaded into the drum it becomes a mass and will heat up if not installed in an expedient manner. Slow resin can be force cured in under 1hr and 24hrs for ambient cure.
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