Your critical failures? Anyone?

  • We are currently upgrading MFK. thanks! -neo
What we need with acrylic is a good method to attach it to epoxy. We need a sealant that forms a good bond to both or an intermediate layer. For example how about using weld-on to attach some plastic to the acrylic, and then silicone to attach that plastic to epoxy. Or, if epoxy bonds to acrlyic, just make epoxy putty and use that instead if silicone.
 
norskfisk;2467639; said:
What we need with acrylic is a good method to attach it to epoxy. We need a sealant that forms a good bond to both or an intermediate layer. For example how about using weld-on to attach some plastic to the acrylic, and then silicone to attach that plastic to epoxy. Or, if epoxy bonds to acrlyic, just make epoxy putty and use that instead if silicone.

I was wondering about that too. PondArmor seems like it bonds to it, but then it will pop off cleanly when enough stress is put on it.

I was looking at windshield gasket materials. It comes in caulking tubes. This stuff seems like it keeps its super sticky and viscous properties over time, which would make it an ideal sealer. THen you could simply put in interior layer of fish safe silicon over it. But I haven't priced this stuff or anything. It was just an idea I got one day. So far, its the best thing I can think of as a silicon substitute that might work better with the acrylic.
 
norskfisk;2467639; said:
What we need with acrylic is a good method to attach it to epoxy. We need a sealant that forms a good bond to both or an intermediate layer. For example how about using weld-on to attach some plastic to the acrylic, and then silicone to attach that plastic to epoxy. Or, if epoxy bonds to acrlyic, just make epoxy putty and use that instead if silicone.

Iv heard of people painting a boarder of epoxy paint on the acrylic, then putting the silicone on that.
 
ITHURTZ;2467701;2467701 said:
Iv heard of people painting a boarder of epoxy paint on the acrylic, then putting the silicone on that.
i've heard of this too. some form of epoxy bonds (for lack of a better word) to acrylic well enough and the silicone bonds to the epoxy, so in essence the epoxy is the intermediate layer. makes sense, but i've never worked with acrylic so i have no idea if it's true or not. i've just heard a rumor that someone else heard someone who said they knew someone, etc
 
The person that did it might have been on here, I wish I remember the thread I was reading. When ever I go acrylic window I am just gonna use SS bolts every 2-3" and silicone it and mash it down
 
I resealed my 55 gallon last night. And I know that I way over did it. I put at least 2 applications on the seams and tons in the corner seams where the glass meets. It's looks pretty ugly actually. But I didn't want it to leak so why not over do it.
 
detroitfish;2462259; said:
you must be dangerous pharoh hurt someone with a tank wow come on bro people will tell you some tricks like screws osb not particle board glue all seems before screwing interlock corners good waterproof non toxic coating spend a little more get the best do research research research and there are alot of post on here on how to build your own just look around :popcorn: post pics of your build to

OSB, not particle board? OSB is a horrible plywood when exposed to water. It turns to mush and is perfect if you want to propagate mold. If you are going to build a plywood tank, go with real plywood.
 
one side of OSB is water resistant. Theres nothing wrong with using pb or osb or anything if your putting a frame around it. Id rather use PB or MDF as it gives me a smoother finish if I want to paint it vs spending 40-50$ a sheet for a finished side or birch ply.
 
Pharaoh;2462219; said:
Most people probably don't want to talk about when their tank busted and someone/something was damaged in the process. I know I wouldn't, especially if I hurt someone. Interesting to say the least.
I have to agree. When someone goes on a board and gets advice and then doesn't use it, it is natural to sweep the failure under the rug and never mention it again. Of course, on the other hand I have met plenty of people that have absolutely no self pride.
 
ITHURTZ;2471081; said:
one side of OSB is water resistant...
Don't forget the other five sides. With what you will have invested in the tank by the time you are done, it would pay to invest in better wood. You can't really rule out drips and splashes because no matter how careful you are in preventing them, they are going to happen. Just being in a humid environment is enough to swell the cheap OSB. I have a light hood made with OSB that is protected by a plexi-glass shield. It has swelling in almost every panel and there are two places that have mold.
 
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