Eliter Glass, A Professional Architectural and Interior Toughened Glass Manufacturer, and Supplier in China.

1. For Building, Interior, Commercial, Bathroom, Door, Shower Wall, Decoration Glass Panel, Bancloy, and Furniture.

2. Mainly 3-19mm Toughened Glass, Heat Strengthened Glass, Heat Soaked Glass, Ultra Clear Tempered Glass, Frosted Glass, Patterned Glas, Jumbo Size Tempered Glass, Shaped Glass, Specialist Glass, Curved Tempered Glass, Silkscreen Ceramic Glass, Tabletop Glass, Mirror, and Other Customized Glass

The architectural tempered glass is tempered with a physical tempering process.

What’s Tempered glass?

Tempered glass belongs to safety glass.

It’s produced with a tempering glass furnace, the glass will be heated to 670 -720 degrees in the tempering furnace first and cooling down the glass quickly with a cool wind.

The heating &cooling process temperature and time used for different thickness glass are different, but the aim is to form compressive stress on the glass surface.

Tempered glass has high strength and will break into small particles once broken and avoid potential injury to people.

How strong is the tempered glass?

The tempered glass strength is 3-5 times higher than normal float glass,

And international glass standards, EN12150, ASTM C1048, AS/NZS2208, ANSI.Z97-2017 have similar impact test requirements against the tempered glass to test the glass strength and evaluate the tempered glass safety.

The impactor is a ball filled with metal grains, or dual tires weight about 45 kgs, and fall from different heights, usually 350mm,750mm, and 1200mm to see if the glass break or not.

When the impact force is bigger than glass strength, the tempered glass will shatter into small particles, it won’t hurt people.

Besides that, tempered glass has good thermal stability, can withstand a temperature difference of 3 times that of float glass, and can withstand a temperature difference of 200°C.

How to judge a glass tempered or not?

The appearance of float glass and tempered glass are the same, you cannot see clearly whether the glass has been tempered or not.

Here are 2 methods that help you:

1. Check the glass logo.

Tempered glass will have a tempered logo on the glass surface, the logo is usually 15*15mm and can be found on glass corners, with printed glass standards or related words, such as CSI, SGCC, EN12150, CCC, etc.

The logo cannot be removed with alcohol, and even knives, it is combined with glass firmly.

2. Check the glass flatness.
Before the tempering process, float glass is absolutely flat, after the tempering process, the glass will have a slightly overall bow or local bow.

If you put your hand on the glass surface, you’ll feel that the surface is not smooth, or please check the glass vertically and see if any bending at the glass center.

Now glass tempering process is becoming very advanced and glass flatness is hard to be noted now.

How much does tempered glass costs?

Tempered glass price is quite different, it’s decided by the glass types, glass thickness, glass sizes, glass quantity used, and the distance between your house & glass factory.

The raw materials in different countries vary too different.

Here we just take China as an example below is the reference price:

5mm tempered glass: USD9/SQM, 10mm clear tempered glass: USD18/SQM.

1. Low iron tempered glass and body tinted tempered glass is about 15-20% higher than clear tempered glass.

2. Other extra processes, drilling holes, notches, cut-outs, round corners will have extra costs.

3. This is the typical price in China, in developed countries, the price maybe 3-4 times higher for higher labor costs.

If you got large-scale tempered glass requirements, China glass factories are a good option to save costs.

Can I cut tempered glass?

After the glass tempering process, Uniform compressive stress is formed on the surface and tensile stress is formed inside, the compressive stress is quite balanced.

The tempered glass cannot be cut, grinding, or drilled holes anymore, otherwise, it will be broken due to the destruction of the uniform compressive stress balance.

So before you decide to install the tempered glass, make sure the sizes are measured correctly and precisely, once the glass process is finished, it cannot be changed anymore.

What’s the shortage of tempered glass?

The middle part of the tempered glass is the strongest, and the four corners and edges are the weakest.

Once the edges or corners are hit, the whole piece of glass is easily broken.

Because of the existence of Nis in tempered glass, there’s always spontaneous breakage after glass installation, which brings high maintenance and replacement costs.

Heat soaking test is a good solution to test the toughened glass and reduce the probability of self-explosion and ensure quality.

Please check our another article: What’s Safety Self-explosion Shower Door Glass

How to maintain the Building tempered glass?

Cleaning the tempered glass is quite easy, usually clean water and a lint-free towel or cloth are enough to remove the dirtiest and dots on the glass surface.

While for some frequently used glass, especially shower door glass, after years of water & chemical corrosion, glass becomes hard to clean,

Please check our another article: Eliterglass Hydrophobic Easy to Clean Glass for Window and Shower Door

Eliterglass is your turnkey China tempered glass supplier.

Learn more products: Ultra Clear Tempered Glass, Curved Glass, Shower Door Glass, Tabletop Glass