new tank

hangles · 04/12/2010, 02:12 PM

just picked up a 90 gal and dont know who made it. it has 7/16 glass (very heavy) and heavy plastic on top and bottom dark oak simulated. I need to drill for returns and am worried about it being safty glass. any ideas on finding out?

thanks

fliynhi · 04/12/2010, 03:32 PM

Usually it's only the bottom that is tempered glass. The front, back and sides should be ok for drilling.

FishNFun · 04/12/2010, 04:47 PM

If you have some polarized sunglasses you should be able to see a pattern on any glass that is tempered.

jh2pizza · 04/12/2010, 05:25 PM

2nd on the Polarized lens. I used a couple camera filters.

sammie · 04/12/2010, 06:22 PM

Just use a good pair of ppolarized sunglasses and get it out in the sunlight. Look at it at an angle and if its tempered you'll see a pattern that looks like a shadow. Try it by looking at your car side windows to see what the pattern looks like.

hangles · 04/12/2010, 06:28 PM

thanks ! will do

Perched Urchin · 04/15/2010, 09:22 AM

+1 again on the polarized lenses.
The pattern you see if the glass is heat treated (tempered) will look like large blurry polkadots or a blurry honeycomb. The pattern is created by the air jets used to rapidly cool the glass during the process and they are called quench marks.
Here is even more of a random trivia fact - there are people in the glass business that can tell you who made the glass and who made the machines on which it was made just by looking at those quench patterns.

Sorry - way more than what was required. Couldn't help myself.

szwab · 04/15/2010, 11:41 AM

Quote:

Originally Posted by Perched Urchin

Here is even more of a random trivia fact - there are people in the glass business that can tell you who made the glass and who made the machines on which it was made just by looking at those quench patterns.

Sorry - way more than what was required. Couldn't help myself.

That's something I'll think about from here on out. Sort of like the last song you hear on the radio.

04/12/2010, 02:12 PM	#1
hangles Registered Member Join Date: Feb 2006 Location: nashport ohio Posts: 949	new tank just picked up a 90 gal and dont know who made it. it has 7/16 glass (very heavy) and heavy plastic on top and bottom dark oak simulated. I need to drill for returns and am worried about it being safty glass. any ideas on finding out? thanks __________________ I like fishy crackers ! Current Tank Info: 75 gal reef/ 55 gal puffer/ 20 gal fowlr/ 10 gal fowlr

04/12/2010, 03:32 PM	#2
fliynhi Registered Member Join Date: Jan 2008 Location: columbus, oh Posts: 329	Usually it's only the bottom that is tempered glass. The front, back and sides should be ok for drilling. __________________ A man's gotta do what a man's gotta do...and my wife tells me what I gotta do! Current Tank Info: 55 gal, maroon clown, fridmani pseudochromis, yellow tang, working on the reef part of it, 100+ lbs live rock, 50 lbs live sand, lots of worms, snails and crabs

04/12/2010, 05:25 PM	#4
jh2pizza Registered Member Join Date: Feb 2003 Location: zanesville, ohio Posts: 3,264	2nd on the Polarized lens. I used a couple camera filters. __________________ Joe and Jeni Friends don't give Friends kenya trees! Just when you think you have made it Idiot proof, they just build a better Idiot. Current Tank Info: 5 - Exploding Stealth heaters, Oceanic 180 in wall, 100 sump, Geo Kalk Reactor, Custom Geo Becket Skimmer, Geo Media Reactors, Geo 624 CA Reactor

04/12/2010, 06:22 PM	#5
sammie Registered Member Join Date: Jan 2004 Location: Zanesville Ohio, or as the people in Columbus think, "off the end of the earth" Posts: 1,953	Just use a good pair of ppolarized sunglasses and get it out in the sunlight. Look at it at an angle and if its tempered you'll see a pattern that looks like a shadow. Try it by looking at your car side windows to see what the pattern looks like. __________________ Bill Current Tank Info: 300 gal reef with all the goodies. A 65 gal sump a, 2-65 gal refug/growout and an integrated 65 gal. QT tank. Custom GEO beckett skimmer, GEO Ca reactor, GEO media reactors both GFO and carbon, GEO kalk reactor. 3-250 watt halides.

04/12/2010, 06:28 PM	#6
hangles Registered Member Join Date: Feb 2006 Location: nashport ohio Posts: 949	thanks ! will do __________________ I like fishy crackers ! Current Tank Info: 75 gal reef/ 55 gal puffer/ 20 gal fowlr/ 10 gal fowlr

04/12/2010, 04:47 PM	#3
FishNFun Registered Member Join Date: Feb 2008 Location: Columbus, OH Posts: 458	If you have some polarized sunglasses you should be able to see a pattern on any glass that is tempered.

04/15/2010, 09:22 AM	#7
Perched Urchin Registered Member Join Date: Jan 2010 Location: Powell, Ohio Posts: 353	+1 again on the polarized lenses. The pattern you see if the glass is heat treated (tempered) will look like large blurry polkadots or a blurry honeycomb. The pattern is created by the air jets used to rapidly cool the glass during the process and they are called quench marks. Here is even more of a random trivia fact - there are people in the glass business that can tell you who made the glass and who made the machines on which it was made just by looking at those quench patterns. Sorry - way more than what was required. Couldn't help myself. __________________ Rob - 90G 36x24x24 mixed reef DT, Apex, 2 x AI Sol Blue, 2 x MP40w ES - 75G sump/fuge, GEO Beckett Skimmer, GEO 618 Ca Rx and GEO 618 Kalk Rx, BRS C Rx - 45G Frag tank, 2 x AI Sol Blue, MP40