Mikeee Posted July 7, 2016 Share Posted July 7, 2016 i have, it is a rust neutralizer that forms a skin on it. Seems ok but i'd scrape the skin off with wire brush and put a protective coating on it. The skin is not something i'd trust yet, don't think it lasts more than 6 months in weather. I've been using Brunox for years. Rust where steel replacement isn't necessary, grind or sand as much rust out as possible, coat in brunox leave for 24 hours or longer. If it's a exterior panel requiring a quality finish, sand out as much of the brunox as possible before prepping. If it's an area you don't care too much about like under carpet, you don't need to sand it out before coating depending on your coating material. It says it converts to a primer, but this is not suitable for panel finishing. It has poor adhesion and may react with certain coatings. Where steel replacement is necessary, I spray on after the repair is complete. Again, leave for 24 hours before prepping further. Fish oil for surfaces that won't be painted 1 Quote Link to comment Share on other sites More sharing options...
Mikeee Posted July 7, 2016 Share Posted July 7, 2016 I've also sprayed it on to a rusted surface lazily without doing any other work to it. Seems to be effective enough to stop it getting any worse Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted July 7, 2016 Share Posted July 7, 2016 Without scientific analysis you wouldn't know Quote Link to comment Share on other sites More sharing options...
Mikeee Posted July 7, 2016 Share Posted July 7, 2016 Rust can eat 2-3mm a year I believe which is a noticeable amount. I have backlog resto cars stored outside that I've sprayed damaged areas and the rusty bits don't appear to be any worse a year or two later. It's at minimum enough to not make time a factor for increasing complexity of the repair 1 Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 7, 2016 Share Posted July 7, 2016 Dinatrol. Quote Link to comment Share on other sites More sharing options...
Moffmo Posted September 12, 2016 Share Posted September 12, 2016 My van has loads of rust on the side of the roof, it's surface rust that has bubbled up through the paint. I'll post some pictures up later. A lot of the advice on here has been about rust removal on parts that are able to be removed from the car. Would it be possible to wire brush this down and use the acid and then reprotect/paint this? Quote Link to comment Share on other sites More sharing options...
Guypie Posted September 12, 2016 Share Posted September 12, 2016 From my experience every time there has been a bubble there is a hole hiding underneath. 4 Quote Link to comment Share on other sites More sharing options...
Moffmo Posted September 13, 2016 Share Posted September 13, 2016 If this is the case, that would be a cut and weld job? Quote Link to comment Share on other sites More sharing options...
Mr Vapour Posted September 13, 2016 Author Share Posted September 13, 2016 Yes cutting and welding required. Quote Link to comment Share on other sites More sharing options...
Moffmo Posted September 13, 2016 Share Posted September 13, 2016 The rust in question. Quote Link to comment Share on other sites More sharing options...
Raizer Posted September 13, 2016 Share Posted September 13, 2016 Choppy choppy time! 1 Quote Link to comment Share on other sites More sharing options...
kyteler Posted September 13, 2016 Share Posted September 13, 2016 Yeah, that's not surface rust. That's more likely either an inadequate previous repair job or an inadequate previous prep and paint job. Quote Link to comment Share on other sites More sharing options...
xsspeed Posted September 13, 2016 Share Posted September 13, 2016 Might originate from that bracket bolt/rivet Quote Link to comment Share on other sites More sharing options...
Moffmo Posted September 13, 2016 Share Posted September 13, 2016 Yeah, that's not surface rust. That's more likely either an inadequate previous repair job or an inadequate previous prep and paint job. I think you're right as there's paperwork for previous rust repair. Whoever paid for it got shafted! Somehow this rust past its last WOF just before I bought it... Quote Link to comment Share on other sites More sharing options...
Moffmo Posted September 13, 2016 Share Posted September 13, 2016 Might originate from that bracket bolt/rivet It's even worst on the other side of the van and goes all down the side. lol. Think its bad paint job as above. Quote Link to comment Share on other sites More sharing options...
Steelies Posted September 13, 2016 Share Posted September 13, 2016 man, that'll be fucked the whole way. wouldnt be so pessimistic if i hadnt just spent a day fixing one tiny bubble that just started to split in that gutter area. 3 rotten skins, about 250mm wide for that little bubble. Quote Link to comment Share on other sites More sharing options...
azzurro Posted September 13, 2016 Share Posted September 13, 2016 Rot from the inside out by the looks to the power of a rivet and bad prior repairs. Condensation on the inside of the van ends trapped in the unpainted internal gutter an the skin. Often made worse on campers and mini bus due to all the moist skin bags breathing all up and throught that. Quote Link to comment Share on other sites More sharing options...
Moffmo Posted September 13, 2016 Share Posted September 13, 2016 Ffaaaaccckkkk Quote Link to comment Share on other sites More sharing options...
Raizer Posted September 13, 2016 Share Posted September 13, 2016 Bongo/Econovan by chance? Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted September 13, 2016 Share Posted September 13, 2016 Ffaaaaccckkkk Nah I reckon that's just surface rust aye man.. just scrape the paint off, rustkill and paint. Jokes, lolololol Quote Link to comment Share on other sites More sharing options...
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