Now we ARE off topic Pm me for any additional info but Ospho is phospheric acid,that cleans metal extremly well it dries with a protective coating that wont start rusting inside not even surface rust for media blasting.....bondo wont stick to it!!!!! you must epoxy prime then bondo.....before you epoxy you sand with 80 or 180 just like you would any other coating to assure adheasion.....theres a little more to it but thats basicly it...it also disolves surface rust without any sanding at all and treats rust,neutralizing it.its great for etching bare metal.If enough people want to try it I'll explain my whole proceedure in detail including pics just pm me and I'll start a thread.BE fore warned :its no mirical cure and its a lot of work but in my opinion and with 35 yrs experiance its hands down THE best way to start a major resto project.You guys got nothing to loose and I have everything to loose if its not completely true ........sooooooo.....who wants to give it a go? Get an old hood and PM me.heres some pics to help you make up your minds

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this roof is as bad as I've ever seen....oops this is what happens when you touch bare metal with bare hands (done on porpose)so use gloves and the primer on the side still sticks to bare untreated metal as you can see but just much better treated.the last two pics posted previously are before and after working the roof,(very rusty)the paint for this car runs just under $1,000 if it doesn't last I'm screwed.....but I'm not worried in the least,I've donethis before,(many,many times) the first pic below is a hand print this car is done now,without ospho or epoxy as an experiment.Conclusion:even if you dont treat,etch or use epoxy the job will still be done but will have trouble hitting the five year mark,with ospho and epoxy?who knows twenty years?more?15.00 for ospho 90.00 for SPI epoxy.....for 100.00 who wants to take a chance? Not me......

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