Laminated Glass
A safety glass consisting of two or more layers of glass bonded together with an interlayer (typically PVB or SGP) that holds the glass in place when broken, preventing it from falling out of the frame.
Technical Details
Laminated glass is manufactured by sandwiching a polymer interlayer between two or more glass panels under heat and pressure in an autoclave. The most common interlayers are PVB (polyvinyl butyral) and SGP (SentryGlas Plus). The interlayer provides UV filtering, sound dampening, and critically, keeps broken glass fragments adhered to the interlayer rather than falling.
Frequently Asked Questions
What is the difference between tempered and laminated glass?
Tempered glass is heat-treated for strength and breaks into small pieces. Laminated glass uses an interlayer to hold broken glass together. For railings, tempered is standard; for hurricane zones and overhead applications, laminated or tempered-laminated combinations are required.
Does laminated glass block UV light?
Yes. Standard PVB interlayers block approximately 99% of UV radiation, protecting interior furnishings and occupants from harmful UV exposure.
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