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What Causes Glass to Shatter for No Reason?

1 Answers

VanIsla

07/30/25 9:38am

Glass may shatter for no apparent reason due to poor tempering of the glass itself, improper installation, or uneven heating during film application. Here are the detailed explanations: Poor tempering of the glass itself: Tempered glass inherently has a self-explosion rate of 0.3% due to quality issues, which indicates a problem with the glass quality. Improper installation: If sufficient edge clearance is not left during glass installation, the glass expands when heated, pressing against the metal edges, leading to uneven stress distribution and causing the glass to shatter. Uneven heating during film application: During the application of window film, if the glass is not heated evenly, using a hair dryer to shape the film can cause localized heating. This results in uneven thermal expansion stress and deformation, leading to glass breakage.

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