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POR 15 painted on rust, with just the scaley stuff removed WILL fail in just a few weeks. Rust ground down with a wire wheel and sprayed with the rust reformer will holdup better but Ive had that fail too. POR 15 over sandblasted metal I have had good luck with. Big problem with 15 is that IF it does fail you really have a monumetal problem on your hands betting it ALL off... sandblasting it is even tough. Ive just tried using the eastwood rust reformer. Doesnt seem as tough as the 15 but after 4 months on the wire-wheeled boat trailer its OK at least with a topcoat. It has failed where the trailer was welded... perhaps some chemical reaction under there where it was heated. Rust is Hydroscopic... and I still dont think there is anything that you can merely cover it with. It will keep rusting and eventually come back out, the products on the market will slow this but if your preserving something for many years... Id be worried/ Keith Keith Park Top Notch Restorations topnotch@nycap.rr.com 71 Squareback 65 Notchback 65 Squareback 87 Golf 88 Rx7 10th Anniversary ----- Original Message ----- From: "David Sanderson" <Porschedave@rennlist.net> To: <type3@vwtype3.org> Sent: Tuesday, October 05, 2004 12:58 AM Subject: [T3] Por15 or ... ? > Hi Folks > > As we are getting ready to paint the cleaned pan I thought that I > should check to see what the feeling is regarding POR15 or other > chassis paints. So far, we have a "clean" pan. That is, I have wire > brushed it back to the clear black original paint, some clean bare > metal, and some scrubbed old rust spots. My plan had been to use > POR15 to paint the whole thing but there was a recent comment about > how messy it is, whether it is really durable, or whether I should > use some other paint. I sure would appreciate your thoughts - before > I paint. Thanks. > > Dave > > -- > David J. Sanderson > day (604) 822 - 4361 eve (604) 255 - 4935 > fax (604) 822 - 6842 > Porschedave@rennlist.net > 1977 911S Carrera 3.0 > rennlist member > http://www.pca-cwr.org > http://members.rennlist.org/porschedave > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >