MEK is some good stuff..or bad depending on how you look at it. We used it alot in aviation ...i mean you could taste the vapors from that stuff if not wearing proper protection. Nevertheless is the stuff to have when you want to "cut" into a substance.kdan311 said:well here's what happened so far. I bought a gallon of MEK at Sherwin Williams (once I convinced them I wasn't making anything in a meth lab, as they keep in behind the counter now and you have to request it and show ID) I put some in the tank three different times. It seems to have gotten most of it out. There is still some in there but not too much left. The little bit that is left in there seems to be bonded to the inside of the tank pretty well and I don't think it is going to come loose.
To get the q-tips out, I straitened the tubes a bit and took a thin nail and pounded in through. The once side cleared out, but the other side cracked where the tube and the tank join and now has a small leak. I'm thinking maybe it can be JB welded or welded by someone who knows what they're doing. So now I have a semi clean tank with a little bit of Por 15 in it and a crack on the bottom. I bought some more sealer, this time KBS. I'm not sure if I want to try it again or just buy a new "old" tank on ebay and start all over. Any suggestions? I've now got about 80 dollars wrapped up in trying to seal the same rusty tank.