![]() ![]() I can tell you that it works very well, and be very careful about contact with anything you care about. I had not considered this before my project. Co-incidentally I am in the process of removing electroplating from plastic using a diluted muriatic acid.Īs I have learned from other posters to your thread the environmental damage is of concern. but that was in Ye Olden Days of the 70's.Ī. the Volvo's rear muffler didn't last too long in winter/salt conditions. Re hydrochloric, have a gander in the archives at thread #12044 which might/might not be useful. ![]() They might well suggest a THIN vinylester coating by pouring it into the tank and sloshing it around. Ask your friendly local frp shop for some advice. Maybe you should 'coat' the inside of the tank first of all. This should cover, as Joseph said, any 'holes'. Having done that and 'cleaned' out the insides, then I'd suggest you clad the whole outside with at least one layer of mat plus a suitable fibreglass resin (Isopthallic may not be good enough chemically speaking, go for a vinylester due to its better flexibility over a Polyester). However, this does mean REMOVING the tank first of all. What Marc suggested about fibreglass seems to be a good idea. Not a huge place, but if you're into classic cars or nostalgia, you'll thank us it's very cool. note: If passing near Bennington, VT, visit the Hemmings museum. ![]() I used this process on my AH tank fifteen years ago, and it is still fine.Ģ) You can send your tank to a company which will derust and hot dip galvanize it.Įither of these methods will prevent future rust and seal small pin holes. You can buy a kit which contains cleaner, deruster, and tank coating materials, and do the job yourself. Muriatic is too aggressive, and you will have a subsequent rusting problem. As you can see, no one here thinks de-rusting with muriatic acid is a good idea. Batch the solution using hot tap water and try to keep the tank at least warm throughout the process. Try a 10% (w/w) solution and drain and rinse well after 60 minutes. If it is light rust, Phosphoric Acid or citric acid will do well. I assume this rust in on the interior of the tank. I recommend using the least aggressive method possible. In addition, you will need to rinse the metal very well to remove the chlorides that can cause more corrosion. While it will do a good job dissolving the rust, you may uncover holes you didn't know you had. I would caution you about using hydrochloric acid on your fuel tank. Overall I think this is a bad idea and you would be better off getting a new tank, but there is my prediction and suggestions for you.Ī. You will need to seal the tank (possibly fiberglass?), very quickly after using the acid. In regards to your idea for cleaning the tank with the acid I can say that yes, it will eat the rust out of your tank, and then promptly let it rust back up again, very very quickly, about 30-45 minutes you will have rust on it again. Muriatic acid is a weaker mixture of Hydrochloric acid, don't let that fool you, it is still very potent stuff and should be handled with the utmost care. If you're concerned about abrasive dust remaining in the tank after cleaning, you can use CO 2 blasting which just evaporates as soon as it contacts the part.ĭecorative nickel-chrome plating - Greenbrier, TennesseeĪ. Obviously the geometry of the tank will be of consequence because you may not be able to reach every remote area of the tank but it's just a suggestion. Perhaps a better solution would be to use abrasive blasting done at a shop that specializes in this type of work. Since you won't have a wastewater treatment system, I urge you not to do this. Secondly, what are you going to do with extremely hazardous, corrosive substance such as Hydrochloric (muriatic) Acid? If someone like myself were to do this in an industrial setting I could go to jail and face serious fines. That is going to be unavailable to the home user. The muriatic acid you suggest using would certainly clean the rust out but unfortunately you will experience two subsequent problems.įirst, once the acid is rinsed out, the freshly cleaned steel will be very prone to oxidation (rust) unless you apply a rust inhibitor of some type. ![]()
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