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Leaky Acrylic Fish Tank any ideas ?

Discussion in 'Fish Discussion' started by coorsxman, Nov 23, 2008.

  1. coorsxman

    coorsxman New Member

    Just setting up my new (used 240 tank) and its leaking any ideas how to fix it. its Acrylic . thres no fish in threre right now .. the leak is in the front of the tank about the middle . then theres another one by my balk head im thinking can a person use the weld on? and re seal all the seams? any ideas? im about to snap lol .. one thing after another ..
  2. cgarza

    cgarza New Member

    Could you post any pictures?
  3. slade1274

    slade1274 New Member

    are you willing to drain? The area will need to be dry so this is the best way. The water thin solvents will draw into the dry gap and "weld" the acrylic back together. It's the same way that the seams are made and actually fuses the acrylic together. If you can't drain it, you can try some waterproof epoxy putty to put on the inside to keep water from the leak. Once it dries out, you can then use the solvent from the outside to fuse it for real. Try http://www.acrylic-designs.com/plastic_FAQ's.htm for adhesive. I built my own sump/fuge out of 1/4" cell cast acrylic; it's easy to do.
  4. pimpnfish

    pimpnfish New Member

    Originally Posted by slade1274

    are you willing to drain? The area will need to be dry so this is the best way. The water thin solvents will draw into the dry gap and "weld" the acrylic back together. It's the same way that the seams are made and actually fuses the acrylic together. If you can't drain it, you can try some waterproof epoxy putty to put on the inside to keep water from the leak. Once it dries out, you can then use the solvent from the outside to fuse it for real. Try http://www.acrylic-designs.com/plastic_FAQ's.htm for adhesive. I built my own sump/fuge out of 1/4" cell cast acrylic; it's easy to do.
    I am confused. How do you weld plastic? or acrilicks?
    Ive have tried to weld/melt platic before in my model car days. And i remember my Duks of Hazzard General Lee didnt do so good. I used a sodering iron to weld it and it melted and was all mishapen and didnt really hold that good. So how does that work on a fish tank?
    confused
    :)
  5. nitschke65

    nitschke65 New Member

    Acrylic is "welded" chemically, not with heat! With the pieces of acrylic (not plastic) held tightly together in the correct orientation, a very thin bead of a chemical solvent is laid along the seam. This solvent will seep into the miniscule space between the pieces (or, in the case of repairing a leak in an acrylic tank into the crack itself) and disolve an extremely thin layer of acrylic, the pieces will bond within a minutes time, but then need to be left to dry for 24 hours. During that period, the solvent disolves completly, leaving the pieces "welded" together.
  6. coorsxman

    coorsxman New Member

    used weld on #6 worked great as of right now no leaks ill have to post pictures soon thx guys

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