Which type of safety glass contains a thin plastic interlayer between two sheets of glass?

Which type of safety glass contains a thin plastic interlayer between two sheets of glass?

• A. Laminated glass
• B. Tempered glass
• C. Float glass
• D. Wired glass

Answer: (A)

Laminated glass is the type that has a thin plastic interlayer between two sheets of glass. That plastic layer, usually polyvinyl butyral (PVB), bonds the panes together so if the glass is broken, the shards stick to the interlayer instead of flying apart. This significantly reduces the risk of injury and helps hold the glass in place, which is why it’s considered safety glass. It’s commonly used for windshields, storefront glazing, and other areas where keeping broken pieces contained matters.

Tempered glass, by contrast, is heat-treated to be stronger, but when it breaks it shatters into many small pieces with no interlayer. Float glass is ordinary flat glass with no special safety features, and wired glass contains a metal wire mesh but does not provide the same level of containment as laminated glass.