Glass supplier says i can't use arrised glass for an unframed aquarium.

wannadivesteve

Candiru
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Sep 10, 2015
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I could be completely incorrect, but it seems to me that hexagon aquariums often were made with glass plates cut at 90 degrees rather than 60 back in the day, not sure what is the norm these days. The important thing used to be having a good surface for silicone caulk to bond to to create a joint, not having two glass surfaces that exactly matched up. Maybe things have changed?
 

windsor

Feeder Fish
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Feb 24, 2015
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I could be completely incorrect, but it seems to me that hexagon aquariums often were made with glass plates cut at 90 degrees rather than 60 back in the day, not sure what is the norm these days. The important thing used to be having a good surface for silicone caulk to bond to to create a joint, not having two glass surfaces that exactly matched up. Maybe things have changed?
You're absolutely correct! The only thing that's changed is that the glass suppliers now have machinery that grinds the 60 degree angles, but it's probably added about 50% to the cost of the finished product.
 

moray eel man

Gambusia
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Jan 30, 2016
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Hi.

I have encountered certain restriction on glass size with polished edges. Anything over 3/4 inch thick cannot be supplied polished without radius corners. They also won't polish anything less than 4" wide [bracing]. That throws me a lot of restrictions unless i use arrised glass.

I spoke to the glass supplier and he said that it is basically cut and given a light sanding to take away any sharp edges. He also said glass is never truly square without polishing because of the way it breaks when cut., so if i use it i would have to have it framed to strengthen the joint. He relayed this from his supplier and couldn't expand on what was meant by framed.

Thing is, i figure that may make sense on paper, but people seem to be cutting their own glass and making tanks. Also, my current tank seems to have the edges sanded flat and square without a truly polished edge so it has tidy square/straight visible corners/edges. Framing sounds a bit extreme, but i figure that could simply mean a piece of aluminium corner trim to strengthen the joint opposed to a truly structural frame.

Basically i am left wondering:

Can i used arrised glass?
Will it need a frame/trim or extra DIY edge work to either give it proper structure or make it more presentable?
Just how straight / square are the edges of arrised glass?
Can glass edges be rough sanded to be more level/square without specialist industrial gear?

Cheers
What is arrised glass?
 

moray eel man

Gambusia
MFK Member
Jan 30, 2016
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I personally with silicone injected together then wait 72 hours and seal the inside then place it on styrofoam on the and let the seal dry didn't find some old blanket or other things soft and surround the tank then fill it with water to see if it holds if it don't did the blankets should protect the glass if it comes apart if it does hold let it sit there for a week to make sure then take it and set it up in the house if it didn't hold you still have your glass and all you have to do is take the silicone off then start over but this time put your supports on.
 

Blisco

Feeder Fish
MFK Member
Jan 29, 2016
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Cheers for all the info. Sounds like it wouldn't be much of a problem if the adhesive will make up for it, i was going to buy plenty of top quality silicone for the job.

To be fair i don't think the glass supplier is entirely interested in supplying the glass. They generally do glass for industrial / trade use, not domestic. I'm small money to them. The only 'domestic' glass suppliers around here sell double glazing units and thin greenhouse glass.
 
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