Normal laminated safety glass consists of two or more sheets of glass bonded together by one or more layers of PVB, which is then sealed under heat and pressure. The interlayer is highly resistant and elastic, giving the glass robust qualities.

SentryGlas® interlayers are five times stronger and up to 100 times stiffer than conventional laminating materials. With this kind of strength, SentryGlas® interlayers help create stronger laminated glass that protects against storms, impacts and powerful blasts.

Besides its strength, SentryGlas® retains its outstanding clarity, even after years of service, to provide superior, lasting beauty for laminated glass whatever the application – from floors and stairs to balcony rails and minimally supported glass canopies.

SentryGlas® interlayers are used in laminated glass to help architects and glazed building system manufacturers meet society’s need for security, energy efficiency, safety and maintenance ease. It helps builders do more with less, creating innovative new spaces, while providing greater protection for building occupants.

SentryGlas® can be used in many laminated glass applications including:

Hurricane resistant windows, doors and skylights
Bomb blast resistant windows, doors and facades
Minimally supported and open-edged railings, facades and canopies
Structural glass flooring, stairs, walkways and pedestrian bridges

The interlayer is a polyvinyl butyral (PVB) sheet that is “sandwiched” between the two layers of glass in each door panel and keeps the layers of glass bonded even when broken. The interlayer laminated glass system has high strength capabilities to prevent the glass from breaking up into large sharp pieces enhancing security and safety.

Interlayer Laminated Glass System

Hurricane Impact Folding Doors

DuPont™ SentryGlass® helped rewrite building codes in storm zones, by raising protection in glass to a new level.

• Safety: in the event of glass breakage, all glass fragments remain firmly attached to the interlayer
• Strength: glass is able to withstand large loads, and is ideal for roofing applications
• Lower Weight: enhanced strength, means that lighter glazing structures can be built
• Integrity: glass can be used in glazing that is required to withstand impacts from material propelled at high velocity
• Durability: glass is extremely durable and resistant to clouding
• Solar control: coated low-e glass can be used for improved energy efficiency
• Versatility: glass can flat or curved, annealed, toughened, heat-strengthened, wired, patterned, tinted or painted.

The glass also offers long-term durability even when edges are exposed to weather. Even open edges of glass are less susceptible to moisture intrusion, and remain free from clouding even after years of service. Resulting laminates handle higher structural loads than PVB, making Hansen FortPlus™ with SentryGlas® an excellent choice for balustrades and minimally framed or point-supported facades.

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