How to tell if glass is tempered?

[jamos5790]

I know the 3d glasses trick but any other way?

 

[gajeep94yj]

I find a good way on YouTube. Use a laptop screen with it white (I used a blank word doc) and put behind the glass. Then use some polarized glasses in front of the glass and look for the steaks

 

[rdnelson]

Surest way is to drill it. You will know real soon.

 

[myreefclub0070]

rdnelson99;1028595 wrote: Surest way is to drill it. You will know real soon.

What great advice....lol
Guess he can bring it over to your house to get it drilled.

 

[shrimpy brains]

MYREEFCLUB0070;1028596 wrote: What great advice....lol
Guess he can bring it over to your house to get it drilled.

Right!? :shades:

 

[mockery]

Theoretically if you used a laser cut you could cut tempered glass. But it would probably be pretty hard to get a tank under one of those.

 

[crew]

I use polarized glasses to check.

The glass will look checkered or striped if it's tempered.