Rameshwaram Build Mat Pvt. Ltd.

Laminated glass is two or more panes of glass with one or more layers of polyvinyl butyral (PVB) sandwiched between them and treated. The glass panes can be basic float glass or tempered or heat strengthened panel. If the glass is broken, fragments tend to adhere to the PVB interlayer thereby reducing the risk of injury from falling glass and helping to resist further impact or weather damage.

It is most suitable wherever safety, security, noise control or UV control is a requirement. The single largest use of laminated glass is in automobile windscreens.

Glass can also be laminated with special PVB like - Coloured PVB in transparent, translucent and opaque, Acoustic PVB for improved acoustic performance and SentryGlas for better structural strength

Process

The production process involves perfect cleaning of the glass panes in multi chamber glass washing and drying machine using filtered and de-ionized water and treatment chemicals. These panes are then mechanically transported to a clean and controlled atmosphere chamber, where the temperature and humidity are strictly maintained to exacting standards since unprocessed PVB is extremely sensitive to moisture and temperature. PVB is then applied in this lay-up room and the sandwich of glass and PVB is passed through preheating chamber, pre nip rolls, secondary heating and final nip rolls to squeeze out air bubbles and provide primary bonding.

The sandwiches are then stacked in a high pressure autoclave where PVB is cured under high pressure and temperature as per heat pressure cycle chart. The entire processing is done with computerized state of the art machines and technical assistance of M/s. Scholz of Germany and DuPont of USA. All basic products, heat strengthened glass and toughened glass can be laminated.

characteristic

Safety : Laminated glass doesn't shatter like ordinary glass. It absorbs impact, resists penetration and remains in glazing even if broken.

Security : Trutuf laminated glass resists intrusion because the interlayer continues to safeguard the building even after the glass itself is broken. In multiple configurations, it can even resist bullets, heavy objects or small explosions. In most cases, it takes many blows, all in the same spot, to penetrate the glass.

Sound Reduction : Glass is an excellent barrier to noise. The sheer damping performance of the plastic interlayer make the laminated glass an effective sound control product.

UV Control : Glass screens out 99% of the sun's damaging rays, protecting interior furnishing, displays or merchandise from fading effects of UV radiation.

Earthquake & Natural Disaster Protection : Laminated glass remains in the frame, maintaining a protective envelope around the home or building to keep weather out and deter glass shards from flying.

Durability : Laminated glass retains its color and strength for the life of the building, yet is as easily cleaned as any conventional glass.

Fire Retardant : While standard laminated glass doesn’t meet code requirements for fire-resistant glass, it will not disintegrate readily when exposed to heat, so it confines the fire longer, giving more time for evacuation and control of the fire.>

Applications

Safety : Curtain wall and structural glazing, overhead glazing, sloped glazing and skylights, glass floors, aquariums and animal observatory windows, offices, hotels and restaurants, hospital, libraries and museums, airport terminals, residences and apartment buildings.

High security places, for example - banks, teller and drive-through windows, ticket windows, gas stations, currency exchanges, armored vehicles, jewelry shops & burglar resistant showcases, embassies, sensitive research centres, computer centres etc.

Available

Flat Laminated Glass

1. Sizes upto 3000 X 5000 mm.

2. A full range of clear, tinted and reflective glass combinations and thickness.

3. Clear PVB of 0.38mm, 0.76mm and multiples of 0.38 mm thickness.

4. Colored PVB on special bulk orders.

5. Diverse glass combinations available in single and double glazing.

Bent Laminated Glass

1. Thickness 5 mm to 52 mm with multiple lamination.

2. Complex curves (three dimensional) are possible.

3. Maximum size: 1800 mm x 2800 mm (Larger sizes are possible, but need confirmation).

4. Depth of Bend: 500 mm.

Options with colour PVB, SentriGlas Plus, Printed PVB are available.