Characteristics of the product
Coated glass is glass that has been coated with various substances to provide it additional qualities. The coating process is separated into two major categories, which are as follows:
1. Hard-coated Glass :
It is an online coating or pyrolytic CVD process, which means that the coating is generated while float glass is being manufactured. Spraying the coating substance on glass surface while it is heating causes the coating material to be adherent to the glass, allowing it to be tempered. However, colours of hard-coated glass are limited.
2. Soft-coated Glass:
It is an offline coating or magnetron sputtering technique which occurs after float glass manufacturing process, resulting in the coating that is less adherent to glass than hard-coated glass. This type of glass cannot be tempered or heat-strengthened; yet, due to advances in technology, certain soft-coated glass can be tempered and heat-strengthened. This kind of coated glass is available in a range of colours.
Examples of Coated Glass
Coated glass has a wide range of uses. Numerous industrial companies are always developing new coating techniques and coating materials. Following are some examples of coated glass:
1. Reflective Glass
Reflective glass is a thin metallic coating on glass surface that reflects part of the light transmittance and heat radiation. It will partially reduce heat while also reducing light entering the building. The percentage of heat radiation passing through reflective glass, on the other hand, is equivalent to that of normal clear glass. The glass on the building’s brighter side can reflect light like a mirror, while the darker side allows visibility.
2. Low-E Glass
A thin silver metal coating is applied to the glass surface multiple times. This glass can reduce heat radiation to the coated side while still enabling light transmission and solar heat to pass through like normal clear glass does.
3. Self-cleaning Glass
Self-cleaning glass has a layer that responds to UV radiation. When dust is deposited and subjected to UV rays from the sun, a photocatalytic reaction occurs, causing the dust to degrade and no longer attach to the glass. This glass has hydrophilic qualities as well. When the glass is wet from rain, the water spreads across it, washing away all the usual dust and leaving the glass as clean as new.
4. Anti-reflective Glass
Anti-reflective glass is coated with layers of opposing refractive index coating. As a result, the reflection on glass is reduced.