Heat Soaking

Heat soaking is a method of making thermally toughened glass to decrease the chances of spontaneous breakage. Because spontaneous breakage can happen when nickel sulfide

is in the glass, heat soaking is done in a chamber and exposes the glass to higher levels of heat than the nickel sulfide can withstand, allowing the piece to break in a safe environment rather than during installation or while in the end customer’s possession.

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