Tempered Glass

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Tempered Glass

Dulles Glass and Mirror offers safety cut tempered glass and tempered glass panels for sale at affordable prices. We are the leading online manufacturer and supplier of custom tempered glass.

Buy today and have it shipped directly to your home, satisfaction guaranteed!

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Why Tempered Glass is Safety Glass

Tempered Safety Glass

Tempered glass is used in applications where standard glass could pose a potential danger, because it is four to five times stronger than standard glass and does not shatter into large shards when broken. Manufactured through a process of extreme heating and rapid cooling, tempered glass is significantly harder than normal glass.

The brittle nature of tempered glass causes it to shatter into small oval-shaped pebbles when broken. This eliminates the danger of sharp edges. Due to this property — along with its strength — tempered glass is often referred to as ‘safety glass.’

The thermal process that cures tempered glass also makes it heat-resistant. Tempered glass can be used in any situation where there is a danger of the glass breaking due to impact or extreme heat.

Here at Dulles Glass and Mirror, we have the capability of tempering glass in many thicknesses and sizes, thanks to our state-of-the-art fabrication facilities and tempering furnace, giving us the flexibility and speed that our customers have come to expect at factory-direct pricing.

Tempering Oven

Temper Oven

This picture shows the actual tempering oven in operation at Dulles Glass and Mirror. Got a custom project? No problem, just give us your specific shape and sizes and we will do the rest. We take pride in our work and handle projects of any size and magnitude.

We want to be your glass company, and we will do our best to gain your trust and business; regardless of the size of the job, it’s that simple.

Having a tempering oven and full capability of production and fabrication means that unlike our competitors, we don't have the luxury of blaming third party suppliers or vendors for mistakes and delays. We are directly responsible for all aspects of the job, from measurement to fabrication, installation, and most importantly, your satisfaction.

Tempered Glass

  • Stronger Tempered glass is 5-8x as impact resistant as ordinary glass, with bending strength 4-5x as powerful. Tempered glass can stand higher static pressure loads than regular glass.
  • Thermally Stable (Less Heat Sensitive): Thermal stability is the property that allows glass to resist temperature differences. It is measured by the temperature difference that would cause the glass to crack. The thermal stability of tempered glass is 1.5-2x better than annealed (regular) glass. This means that while annealed glass would crack at 100 degrees Celsius, tempered glass can withstand temperatures of up to 320 degrees Celsius before cracking. It’s this quality that makes tempered glass perfect for the outdoor heat.
  • Safer Tempered glass has many applications because of its safety characteristics. The safety of tempered glass comes from strength and its unique fracture pattern. When tempered glass breaks, it breaks into small, relatively harmless blunt glass fragments. This is called "dicing", and reduces the likelihood of injury since there are no dangerous jagged edges or sharp shards.

Tempered Safety Glass

Glass Strength Video

Annealed Glass

Annealed Glass is NOT Safety Glass. Annealed glass is hardened glass, but it lacks the safety features of tempered glass. Should annealed glass suffer breakage, it will break into completely separated small pieces. Annealed glass is ideal as a protective covering on existing furniture, and for indoor use.

Annealed Glass