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Old 05-21-2012, 01:42 PM
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Default Silicone, Glass, and Acrylic

So i have been reading that these three will not mix very well for making a water tight seal.
I dont see why this would be so, seeing as how they have both glass, and acrylic tanks, and they are all siliconed together, i guess acrylic is done with a weld-on type chemical bond though.

Anyways im asking because im making an acrylic partition, and have to make a water tight seal to the glass. I was just planning on doing silicone, but now am re-thinking it.

Ive also thought about using the two-part epoxy that is used for live-rock attachment in saltwater tanks. If its safe for those, its safe for these, and its also good for marine and freshwater.
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Old 05-21-2012, 04:10 PM
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Default Re: Silicone, Glass, and Acrylic

To do this properly, partitions should be made in glass. Silicone will release from the acrylic. Exoxy or Weld on 40 may not make a waterproof seal.

There are a whole lot of people who have experienced failure with partitions. The water rarely cooperates with where you think it should go.
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Old 05-21-2012, 06:49 PM
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Default Re: Silicone, Glass, and Acrylic

Do you know of anything about great stuff adhering well to both glass and acrylic, if i model my partition first, seal the edge of glass to acrylic, and then cover with great stuff, again siliconing it to seal, do you think this would work? my partition seems very difficult to make from glass.
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Old 05-21-2012, 07:02 PM
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Default Re: Silicone, Glass, and Acrylic

simple solution, make the partition from glass instead of acrylic and silicone it in
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Old 10-01-2012, 03:16 AM
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Default Re: Silicone, Glass, and Acrylic

i wish i could show you the things i try and do, but simple is not in my book. i am however switching to glass, and going to try my hardest to make complex cuts, that will later, sadly, be completely covered. but i will have this well documented.
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Old 10-01-2012, 03:50 AM
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Default Re: Silicone, Glass, and Acrylic

Even if you get a water tight seal, it is probable that water will get on the wrong side of the partition. It is very common for water to splash and/or wick up and over the partition via something like adhered substrate, a fallen leaf... I would strongly suggest also including some way to drain water from both sides of the partition....

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acrylic, bonds, glass, silicone, watertight

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