First Generation Firebird-L Mailing List ......................................................................... I have read too many con's to soda blasting. It is heavily promoted, but you don't find the recognized shops using this process. The issue is you have a chemically active powder that is as fine as flour that gets into all the cracks that can cause the paint to fail later on. Yes, it supposedly is water soluable, so you can scrub it off with soap and water. But can you get the water out of the pinch welds and such fast enough to prevent more rusting? Without washing it off, it will cause paint failure. With media blasting, the dust will at worst, be encapsulated in the seam under the primer. Of course, media blasting has to be done with care, or the panel will be damaged/warped. Here are a few links. This process is heavily promoted and debated. I just wouldn't risk it because the alternative of media blasting has no issue of leaving behind a chemically active product. At worst, media blasting leaves behind inert debris. I also wouldn't dip a project into chemical cleaner unless the project is being completely disassembled so the pinch welds can be cleaned up. One never wants to trap chemicals in the pinch welds. These cars fail at the various pinch welds. That is why I am so concerned over these processes. http://spi.forumup.org/viewtopic.php?t=1665&mforum=spi http://www.hotrodders.com/forum/soda-blasting-residue-126339.html?highlight=soda+blasting http://spi.forumup.org/viewtopic.php?t=156&mforum=spi There are lots of arguements saying it provides a protective coating. There are other arguements that the stuff gets into seams and promotes rust while inhibiting paint adhesion. I wouldn't risk it because there are better choices.
--- On Thu, 7/24/08, Tim Seibert <[EMAIL PROTECTED]> wrote: From: Tim Seibert <[EMAIL PROTECTED]> Subject: RE: [FGF] Soda blasting To: "First Generation Firebird-L" <[email protected]> Date: Thursday, July 24, 2008, 12:29 AM First Generation Firebird-L Mailing List ......................................................................... I glanced at a show on tv last week where they were soda blasting a pickup truck, and it appeared the soda was dissolved in water before being sprayed from the gun. They claimed it would also leave a film over the bare metal surface that would prevent any flash rust until they were ready to do a final cleaning to primer it. ------------------------------------------------------------------------ Submissions to Firebird-L: <[email protected]> Unsubscribe from Firebird-L: <[EMAIL PROTECTED]> Help: <http://FirstGenFirebird.org/firebird/Firebird-L.html> Classifieds: <http://FirstGenFirebird.org/ubb/> Owner Pictures: <http://FirstGenFirebird.org/show/> Donations: <http://FirstGenFirebird.org/store/cart.mv?999999> FGF Merchandise: <http://FirstGenFirebird.org/store> ------------------------------------------------------------------------ Submissions to Firebird-L: <[email protected]> Unsubscribe from Firebird-L: <[EMAIL PROTECTED]> Help: <http://FirstGenFirebird.org/firebird/Firebird-L.html> Classifieds: <http://FirstGenFirebird.org/ubb/> Owner Pictures: <http://FirstGenFirebird.org/show/> Donations: <http://FirstGenFirebird.org/store/cart.mv?999999> FGF Merchandise: <http://FirstGenFirebird.org/store>
