Glass cutting

[rocktot]

Ah, so can you untemper the glass and retemper? Would that be too much trouble and $$?

[SuperiorDG]

Ah, so can you untemper the glass and retemper? Would that be too much trouble and $$?

Sure you can, but the cost is way too high. If you can get someone to do it, and that is a BIG if, they would charge more then what new tempered glass would be. I sometimes have my suppliers temper glass that I cut, because it's a crazy pattern or something, and they charge me as much as it would cost if I just bought the glass from them in the first place. The problem is is that the tempering ovens have to be such down and cleaned if the glass breaks in the process. The risk of down time and all the other BS that would go along with it is what you would be paying for and that would be a lot, that is if they would want to deal with it in the first place.


Edit: Tempering glass is the process of heating the glass and then cooling it with air jets so that the surface is cooled faster then the inside. This puts a surface tension on the glass which once broken shatters the entire piece. If you reheated the glass and let it cool uniformly then the surface tension would no longer be there allowing you to cut it. For example, if one has tempered glass in a fire place it will, over time, loose it's tempering.

[rocktot]

Hmm,, ok, Im making home made windows- how about using some of that anti-shatter stuff on them. Can you just buy a roll and put it on the glass? These are simple windows for a shed.

[Irving]

Besides shattering the glass, what is the purpose of the tempering?

[def90]

Besides shattering the glass, what is the purpose of the tempering?

You temper glass so that it shatters into small harmless pieces when it breaks vs shards of glass that become lethal daggers. Think about slipping and falling in a shower and breaking the glass door.. would you want a bunch of small pieces or long sharp pieces for you to fall on?

sent from a soup can and some string..

[jmg8550]

Also tempered glass doesn't break as easy as plate glass. It will flex more.

[Irving]

Ahh, like auto safety glass. Gotcha.

[Dryfli]

Safety glass = tempered glass

[SuperiorDG]

Safety glass = tempered glass

Laminated glass is also safety glass. Windshield of the car, Laminated. Side and back windows, tempered.

[Great-Kazoo]

Laminated glass is also safety glass. Windshield of the car, Laminated. Side and back windows, tempered.

That's the description i was thinking o,f not tempered.