I have had really good luck with 3M's grey sealer.... so far.... Is that what you had fail?
On Mar 2, 2006, at 9:45 PM, John Reddick wrote: > The seams don't rust until the seam sealer cracks. No cracks, no > rust. > If you see a crack in the seams fill it with something, I don't > care if it > is toilet paper. A crack starts what is called an "oxygen > concentration > cell" type of corrosion. A difference of O2 concentration causes a > bigger > voltage difference than most other types of corrosion. That is why > bridges/pilings show lots of corrosion at the waterline, and little > above or > below the waterline. I have never seen a Vanagon with rust at a non > cracked > seam. Just the opposite, I have an 86 Syncro that lived its entire > life in > CA. The whole thing is beautiful. Except for 1 12 inch section of > seam, > which is beginning to rust. At the cracked seam. > Now the question, what do you replace the factory seam sealer > with? 1 > part polyurethane? Catalyzed seam sealer? I used very expensive > catalyzed > seam-sealer on a repaint of a van and it cracked in 9 months. > Anybody got a > good answer to that? The sealer I used was 30 bucks a tube, > wholesale, body > shop stuff. It wasn't flexible enough. > |
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