Laminated glass consists of two glass layers with an interlayer made from materials such as PVB, EVA, PVS, SGP, or fabric.

 

A- PVB

PVB is a plastic material used for bonding and adhesion of glass layers.

When the glass in a laminated glass unit breaks, the PVB layer protects against shattering and increases resistance to breakage, enhancing overall safety.

These units are commonly used in applications that require high levels of security and protection, such as safety glass in windows, doors, and architectural fixtures.

Coloured PVB interlayer:

• Blue
• Yellow
• Green
• Red

B- EVA

It is a type of glass composed of two or more layers of glass bonded together with a layer of adhesive material called EVA (Ethylene Vinyl Acetate).

EVA is a transparent and flexible plastic material that possesses unique properties, making it ideal for use in laminated glass.

EVA material is known for its elasticity, impact resistance, high-temperature tolerance, and UV resistance.

Its strong adhesive properties allow it to effectively hold the glass layers together, even when the glass is broken.

This enhances the safety of the glass and reduces the risk of injuries.

 

C- PVS

There is a material called “Polyvinyl Siloxane” (PVS) that can be used in some security glass applications.

PVS is a type of modified silicone rubber that can be used for security glass in certain cases.

PVS is a flexible and durable material with good shock-absorbing properties and the ability to withstand external forces.

PVS is used in specific applications where there are specific requirements for security glass.

It may be used in the manufacturing of security glass for military applications, such as military vehicle windows, where the security and impact resistance requirements are higher.

 

D- SGP

SGP stands for “SentryGlas® Plus,” which is an enhanced Polyvinyl Butyral (PVB) material used in the manufacturing of laminated safety glass.

It was developed by DuPont Chemicals and is considered an advanced technology in the field of safety glass and impact resistance.

SGP material has several unique properties that make it suitable for use in safety glass, including:

1. High Strength: Glass made with SGP material exhibits high resistance to breakage and impact, making it stronger and more durable than conventional
2. High Transparency: SGP material provides excellent transparency, allowing light to pass through freely without distortion or impaired
3. Enhanced Safety: When subjected to breakage or impact, the intermediate layer of PVB enhances safety by retaining shards and preventing them from falling, thus reducing the risk of injuries from broken
4. Chemical Stability: SGP material is resistant to moisture and chemicals, making it suitable for use in diverse environments and resistant to

SGP material is used in the manufacturing of safety glass for applications that require high levels of safety and protection, such as large glass facades, glass roofs, glass balustrades, and other applications that demand superior mechanical resistance and safety.

 

E- Fabric

Two layers of glass combined with the beauty of color and texture of the fabric give the laminated glass a contemporary decorative feeling.

 

F- Acoustic

The “Acoustic” material that is placed between the layers of laminated glass to enhance sound insulation is typically a layer of PVB (Polyvinyl Butyral) or a rubber layer enhanced with soundproofing properties.

The benefits of using Acoustic material between the layers of laminated glass include:

1. Noise Insulation: The acoustic material works to reduce the transmission of sound from the interlayer absorbs and disperses sound energy, reducing the reach of noise to other areas.
2. Improved Privacy: With its soundproofing capabilities, the acoustic material provides improved privacy in areas that require high confidentiality, such as offices or meeting
3. Enhanced Comfort: By reducing the transmission of external noise, the acoustic material can improve the quality of life inside buildings and provide a quiet and comfortable
4. Sound Absorption: The acoustic layer contributes to sound absorption within the room, reducing echo and unwanted frequencies, improving sound quality, and minimizing

The sound insulation performance of laminated glass is improved by using the appropriate interlayer according to specific application requirements.

It is important to note that other factors affect the sound insulation performance of glass, such as glass thickness and the overall composition of the facade used.

 

G- Smart glass

A smart film that can be added to laminated glass and electrically switched from ON to OFF.

 

H- BulletProof Glass

Also known as ballistic glass, is a type of glass designed to provide protection and insulation against bullets and potential attacks.

It is manufactured by incorporating bullet-resistant materials between layers of glass, enhancing its ability to withstand external impacts and maintain the safety of buildings and individuals inside.

The components of bullet-resistant glass include glass layers and bullet-resistant material placed between them.

Materials such as butyl or polyvinyl butyral (PVB) or polycarbonate are used as bullet-resistant materials.

These materials work by distributing energy and absorbing shocks, reducing the impact of bullets and minimizing the risk of glass breakage.