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Sand blasting is OK and much cheaper. On the older cars with the heavy metal it's not a problem. Media blasting is the only safe way on the newer cars with the ultra thin metal. The biggest problem with either is the heat generated and the sand getting into everything. Having done both it takes a lot of time and attention to detail to get all the grit out. Getting that grit out of the seams requires the use of a very sharp pick or awl. The blasting will also put a gray powder on all the parts which much be removed. Within a hour or two you need to put a self etching primer (epoxy is the best) on the bare metal. In my opinion the best way is to DA sand and only blast areas of rust only. I also treat all interior areas like rocker panels with a cleaner (Greased Lighting @ Lowes) and a very high pressure washer to clean them out. Then use compressed air with a long 2' extension to blast all the water out. Put a heat gun on the cleaned areas to dry them then spray a anti rust chemical into the channels using the compressed air to work the chemical into the small areas. Spay bed liner into everything that will be hidden or not painted for show. Unitized bodies rust from the inside out and failure to get the rust stopped on the inside areas will eventually eat to the outside. And thats the way I do it. > [Original Message] > From: Keith Park <topnotch@nycap.rr.com> > To: <type3@vwtype3.org> > Date: 7/2/2006 5:35:56 PM > Subject: [T3] Sandblasting vs Mediablasting > > Hi all, > > Ive found a local guy (VW nut too!) to do some of my large area blasting, he > does old time sandblasting though. Is there any advantage to media blasting > to sandblasting for sheet panels? > > He showed me a car he has done several weeks before, and its been humid > here, and there was little to no re-rusting, which says to me that the find > black beauty he uses really gets down deep and all the rust out, especially > since the car he showed me was a Rustang! > > Any reason to not go for the plain sandblasting over a Media blaster (should > I find a local one) ?? > > Thanks > > Keith > > > Top Notch Restorations > topnotch@nycap.rr.com > 71 Squareback > 65 Notchback "El Baja Rojo" > 65 Squareback "Eggcrate" > 87 golf "Winterat" > 93 RX7 "Redstur" > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~