Tempered glass test, still popped?

[jollyrogerreefer]

So I did the LCD screen/polarized sunglasses test on a 29 gallon tank I got from a friend, and the glasses blacked out. From what I've seen on youtube, black means regular glass. During drilling, the glass popped. Afterwards, we destroyed the whole thing and found the front/back were tempered and the sides were just glass. Is there a better way to tell if its tempered, now that I have to start spending money on tanks?

 

[mdb_talon]

I am not familiar with the LCD screen test or what that is. We didnt have LCD screens when I started doing this . I have always just used the polarized glasses(in sunlight). When tempered should be able to see series of dots or faint lines across the glass.

 

[Pistondog]

Hold a Bic lighter up to the glass surface if you see 2 flames it is tempered.

 

[rwb500]

the tempered pattern that is revealed with the LCD screen and polarized sunglasses/camera filter trick can be less obvious than you might expect. You need to use as large of a screen as possible, ideally a 13" laptop or bigger, to allow you to examine a large area of glass at once to look for any abnormalities. You also need to use a screen that actually goes fully black. A lot of newer devices don't.

 

[BigD9.5]

Does this actually work?

 

[Oregon Grown Reef]

It does work, but you have to test it in a few areas. Also, never assume all of the panels are the same. Aqueon, for example, mixes it up. Sometimes you get 1 or 2 panels that are non-tempered and sometimes you get a fully tempered tank.

 

[BigD9.5]

Who knew it could be so complicated lol....and i cant find any information on it anywhere! Brand new from petsmart i couldn't pass up the deal!