who ever invented tempered glass is a real jerk..

[Conesus_Kid]

I wouldn't do it if it was me.

I was fortunate enough to have individual pendants that I can slide to the left and right, so I was able to spread my pendants to cover the area that the inoperable light normally covers.

Will the fixture still fire if you take that bulb out?

 

[Capt_Cully]

Not sure, but I can unplug it from the double ballast. That's next. Its been dark for 48 hrs over there so I don't want to fire the halides at all for another day or so. The glass shop said it's gonna be 3-4 days before I get the new piece. I'm still a little leary. Sunlight supply wasn't very confidence inspiring. BUT, they assured me it's just plain old tempered glass. No special UV protectant coating. Fingers crossed they didn't screw me.

 

[shawna1972]

If your mother in law isn't available, PM me your address and I'll send mine over ASAP.

No need to thank me. Helping a fellow reef enthusiast is its own reward.

Omg lol too funny!

 

[shawna1972]

Wow,Thats to bad sorry to hear!

 

[Gravesj1s]

Not sure, but I can unplug it from the double ballast. That's next. Its been dark for 48 hrs over there so I don't want to fire the halides at all for another day or so. The glass shop said it's gonna be 3-4 days before I get the new piece. I'm still a little leary. Sunlight supply wasn't very confidence inspiring. BUT, they assured me it's just plain old tempered glass. No special UV protectant coating. Fingers crossed they didn't screw me.

-Cully ,
Hey sorry about the mishap, I really got to start reading more threads wish I dseen this before.
Anyway did you already pay for the glass cut ect....If not I might be able to help ya out ,I know the broker for the more well known local glass companys.PM me if you need some help.3-4 days seems a bit long.

 

[Capt_Cully]

Hey man, appreciate it, but yeah, I had to prepay. I've always just gone to Solvay Glass. They get it done. For what I needed, a piece of tempered 23x11 1/8th inch glass I figured it's not a big deal.

Anyone know what is involved in tempering glass. Is it the glass itself or is it a process performed on the glass after it's cut?

 

[superkat]

it's the glass itself.

 

[Capt_Cully]

So then I'd imagine there's a special way of cutting it???

 

[eugeneK]

they take regular glass, cut it first, there is no way to cut tempered glass, or drill it. thats why its so expansive, each specific custom size piece is custom made for you.

During the tempering process they heat the glass and rapidly cool it with steam or hot air. In the process molecules on the surface (only on the surface, inside stais the same) become alligned in a way that it creates surface tension which in return make it very strong. The glass becomes harder to break and can withstand temp changes. If that tension is broken on any part of that glass, most of it lets go and shatters in tiny pieces.
Best way to break tempered glass is by impact from a sharp obgect while impact with a blunt one will be resisted better than by normal glass.

thereis also a chemical process thats uncommon and involves sodium

Actually glass is a fascinating substance as its molecular structure behaves more like a liquid rather than a solid or crystal.

here is a wiki read: http://en.wikipedia.org/wiki/Toughened_glass

 

[superkat]

wish my brother was still around to ask...he worked at Corning Glass....yeah, i believe there is a special way to cut it...and i believe it involves intense heat to "de-temper" until it has been cut. again, not an expert here, just remember my brother telling me some horror stories at the glassworks in regards to tempered, what they called "toughened" glass.


edit: and there ya go...Eugene knows.

 

[Capt_Cully]

OK so it's been about 2 weeks give or take, since this happened. New tempered piece is in place. Halides are back on. But, this half of tank has only had 108W of T5 over it in the meantime. Don't wanna shock anything so I've turned the halides back to only being on 2.5 hrs.

Too much, too little, just right??? Whadya think?

 

[Gary Majchrzak]

sounds okay

sounds okay

why not play it safe?

 

[Newreeflady]

Just an irritating road block. I can get a new piece tomorrow, fairly cheap, but come on!!!!! Really!?!?!? If my mother-in-law stops by today I may punch her in the neck just to relieve the angst! Gotta stay calm around the bambina.

Where are you getting cheap tempered glass? I tried to get a 7"x12" piece and they wanted $45 at Superior!!!

-A

 

[Capt_Cully]

how thick? mines only 1/8th inch.