Automotive Glass

SGI has been the preferred choice of automotive OEMs for over 10 years for auto glass; becoming synonymous with auto glass in India. The widest range of auto glass available in India today is from SGI and includes not just laminated windshields and tempered glass for sidelites&backlites, but also a host of sub-assembly products, value-added glass such as defogger glass, acoustic glass, encapsulated glass, etc. and innovative products like plug-in windows, water-repellant glass and rain-sensor windscreen, to name a few.

Tempered Glass for Sidelite & Backlite

Temperlite-LT

This is made by subjecting float glass to temperatures equal to softening point of glass, approximately 680 Degree Celsius, and then rapidly cooling it. Sheets of float glass are heated in a long furnace where they are shaped either by pressing or naturally, by gravity. These heated glass sheets are ‘quenched’ the moment they emerge from the furnace by strong blasts of cool air. This instant cooling creates stress points in the glass which makes it four to five times stronger than float glass.

Used primarily for side window glass and rear windshield glass, when it breaks, tempered glass shatters into many very small pieces with blunt edges. This makes it much safer than annealed glass which breaks into long sharp shards that can cause serious injury.

Laminated Windshields

Lamisafe-LT

A layer of plastic (PVB) is sandwiched between two sheets of float glass. This layer of plastic bonds the glass together, so that if it breaks on impact, the shards remain stuck together instead of shattering. That’s why laminated glass is used in places where the possibility of injury during accidents is high, like the front windscreen. High-end automobiles also use it for side and rear windshield glass.

To ensure that each piece that reaches you is safe, glitch-free and exquisitely formed; we put our glass through stringent quality checks.

Value-Added Products

Defogger Glass

Defogger glass removes ice and condensation from the backlite or back glass electrically, through patterns that heat up when charged, both within and outside the car. This allows for clear visibility in all weather conditions.

Glass Antenna

Unwieldy metal antennae can be quite an eyesore on a well-designed car. Glass antennae are printed patterns of conductive material on glass, accompanied by electric devices that send and receive signals. The printed pattern is adjusted to the correct length and shape to make the resonance of the signals match with the receiver. The advantages of glass antennae are that they are aesthetic, maintenance-free, durable and lightweight.

Encapsulated Glass

Here, a moulding of flexible PVC or Polyurethane-RIM (Reaction Injection Moulding) around the glass perimeter is provided to give an aesthetically integrated trim for the product. It has the following benefits:

• • Integrated trim to glass.
• • Cost reduction through one supplier integration.
• • Tooling cost reduction through use of composite tooling
• • Less components to handle at customer end.
• • Overall program timing reduction.

Plug-in window

Flush fitted glass is a new concept in the Indian market. Two glasses assembled and fitted as exposed flush glass. One fixed glass directly glued to vehicle body while the other fixed glass moves on the first glass with help of upper and lower rails. When the second glass moves above the upper glass, a window is created.

Solar Control Glass

Laminated Glass with increased iron content absorbs infrared rays and reduces the amount of heat in the car. This helps in:

• • Reducing the solar energy entering the car
• • Preventing the rise of interior temperatures
• • Reducing the load on the air-conditioning, thereby reducing fuel consumption
• • Reducing cool-down time after sun-soaked conditions
• • Reducing skin irritation caused by sunlight

PET Windshield

It is a laminated windshield with an Optically Clear Polyester (PET) substrate. Also, silver and metallic oxides are sputtered to create spectrally selective filters for solar control. PET Windshields help in:

• • Improving the visibility
• • Resists break-in’s
• • Reducing interior heat load
• • Increasing fuel efficiency
• • Potential weight & costs savings
• • Reducing emissions
• • Clear Solar Control (IR-Reflecting)
• • Reducing noise
• • Reducing UV

Rain Sensor Windscreen

Rain sensors save a driver from the constant distraction of having to flick the wipers to adjust the blade speed. A sensor at the base of the wipers detects the volume of rain falling on the windscreen and accordingly adjusts the speed of the wipers. It uses two types of sensor – the acrylic fiber system that bonds a bracket for the sensors to the glass and the silicon system which bonds the sensor lens to the glass.

Heated Windshield

Driving on winter mornings can be quite daunting especially after heavy snowfall. Our heated windscreens have heat conductive patterns at the base near the wipers which melt the snow along the bottom of the glass and free the wipers to remove snow, and ice.

Water Repellent Glass

When rain pelts down, or a passing vehicle splashes up water on the car, forming a distorting translucent sheet on the glass surface, visibility can be dangerously low. To remedy this, our water repellent glass has a special polymer coating which does not allow water droplets to adhere to the surface. Water droplets are disallowed to spread and retain their spherical shape. These tiny pearls of water are easily blown away as the car increases speed, leaving the glass panel clear and clean. It is easy to clean as it resists dust and dirt. It requires little maintenance and is highly durable.

Extruded Windscreen

At SGI we believe in providing holistic solutions, which is why we have now developed extruded windscreens. Extruded windscreens are fixed with a molded rim of PU/TPE that is bonded with an adhesive. This forms an aesthetic lining along the edge of the glass, and allows Original Equipment Manufacturers to fix windows to automobiles bodies in one convenient simple step.

Acoustic Glass

Acoustic glass uses multi-layer co-extruded Acoustic PVB. It addresses the fundamental performance problems of glass with respect to noise transmission - Resonant vibrations and Coincident effect.