All,
Is there a proactive way to nip seam rust in the bud?  While washing my 91
GL, I notice that the seam sealer is cracking in places.  In some seams
there is the slightest hint of rust-coloring.  I know that seeing the
slightest hint of rust-coloring means that there is indeed rust down there
somewhere.  What can I do to halt the progression?

I'm not real keen on scraping all the seam sealer out, and going that
route...I don't want to repaint the van.  I was thinking something along the
lines of covering the seam sealer with clear nail polish or something to
seal up the cracks.  But that wouldn't address the rust inside....

Just keep the seams clean and don't drive it on the salty roads in the
winter?

Any ideas?

Bob
East Haddam, CT