Holdover Time (HOT)
Holdover Time (HOT) : Holdover time is the estimated time that an application of anti-icing fluid is effective in preventing frost, ice, slush or snow from adhering to treated surfaces. Holdover time is calculated as the beginning of the final application of the anti-icing fluid, and as expiring when the fluid is no longer effective. The fluid is no longer effective when its ability to absorb more precipitation has been exceeded. This can produce a visible surface build-up of contamination. (as measured in endurance time tests and published in "Holdover Time Guidelines"). Holdover time is the estimated time that the fluid prevents reformation of contamination on critical surfaces. Holdover time commences at the beginning of the final fluid application
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