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  #31 (permalink)  
Old 01-23-2011, 03:18 PM
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You should try the chemical strippers they're simple to use.I been stripping cars for many many years with them...aircraft stripper by kleen strip or Jassco are some of the good ones.For me its the ONLY way to go...

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  #32 (permalink)  
Old 01-23-2011, 07:39 PM
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OK, just updated the Media blasting article in our wiki, with the information in this thread. The sections on Media details and Blast media guides might be particularly useful. There are also details on building DIY blasting cabinets. And of course there is a Safety section, to which I've just added the CDC Silicosis PDF (thank you, lakeroadster, that link will not go to waste ).

The wiki article is really starting to come together . If anyone knows of any media blasting article on the web that is a better resource than ours, please let me know immediately, and I'll incorporate its information into our article, and reference it accordingly. Thanks!

We also have a wiki article on Stripping paint.
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  #33 (permalink)  
Old 01-28-2011, 07:44 PM
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Well the thing is, would chemical stripper strip rust off? The cars I mess with are pre 69's, mostly in 40's though and most of them aren't paint any more, its rust. How good it work on rust? Thanks
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Old 01-28-2011, 08:08 PM
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Nope they won't touch the rust. This is where you need to think about it a little more. Is it minor surface rust? that could be cleaned with a surface conditioning disc or a clean and strip disc or something like that, or even simply sanding it with a da. If it is serious pitting, sandblasting may be your only option. But if you have serious pitting on sheet metal it is probably going to be replaced anyway!

But you could chemical strip a panel and then sand blast the rusted areas which are usually near edges where there is some support for the sandblasting to avoid warpage.

If it is the structure like the inner braces on the bottom of GM fenders or the door shell or something like that, sandblast your heart away because it is very unlikely you would damage that stuff with sand blasting.

Brian
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Old 01-29-2011, 10:43 AM
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With surface rusted sheetmetal like I have had to deal with on my 67 GTO and now on my 48 Chevy SD it's getting the rust totally out of the microscopic pits in the metal. I learned on my GTO hood that sanding didn't get it all and the paint bubbled in small areas and I had to buy a repop hood. So on my 48 which was rusted on the surface pretty bad I had it blasted with tiny steel beads to get all the rust out (I hope). You just have to find a shop that is experienced with sheet metal blasting and knows not to warp panels.
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