Veteran
Location: Oslo Norway |
I would recommend welding ABS, PP or PE thermoplastic tanks rather than using a resin like epoxy. Thermal hardening resins and thermoplastic normally does not go together. There are some "fix kits" out there and I believe they are some kind of acrylics, how long those repair hold up I don't know. I have never seen any of these products sold or used used in any industrial application so I personally don't trust them. This is a job you only want to do once. Drop the tank, clean it inside and out, drill each end end of the crack with a 3mm drill bit, use a Dremel or likewise to cut clean the cracks 2/3 the depth of the material. Go over the area ever so lightly with a propane torch and/or clean it with acetone to prepare the area, then "weld" using a soldering iron an add material as needed from a plastic welding rod. I bought a "kit" with different types of 3mm plastic welding rods on eBay for a few dollars. I did this fixing quite a few cracks in the grey water tank for #477. It worked really well, and I have tested the integrity by using a hammer beating the crap out the welds because having leaks of any color when everything is reinstalled is not an option. Picture here http://www.fmcowners.com/mbbs22/photos/show-album.asp?albumid=89&photoid=4645 Stay cool! Kjetil #477
Edited by Duramaxer 2017-08-03 4:16 PM
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