I just unexpectedly secured inside winter storage of my Vanagon!� Problem is I now have, perhaps, 1/2 day to stabilize my seam rust before the van sleeps for the winter.� (inspection sticker runs out and I�won't be able to work on it where it is going most likely)� �I has planned to take on this project thoroughly in my drive this fall - but that must await till next year,
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What would be the best method considering the time restraint?� I could, perhaps borrow a sand blaster.�I was thinking of just cleaning out most of the rust stuff I can and blasting it with FluidFilm or would simply painting over it be better. 
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Any ideas appreciated!
John