Troops:  If I decide to jump in with both feet and do some serious
rust removal on my two Vanagons, is there a better product for
treating the existing rust on the Vanagons than POR-15?  My own
personal experience with the product has been mixed for sure.  I
thought it would be the be all end all for redoing the rusty roof on
our Chrysler Minivan, but after stripping the rood paint down to bare
metal, sanding, painting the POR clear stuff on, scuffing that, and
then painting the POR top coat over it,  all was well the first
year.  By the time we junked out the car due to body damage, the POR
was crumbling and flaking off at an alarming rate.  I used the Marine
clean as directed, the metal prep as directed, and still this
failure.  that's not going to happen with the Vanagons, so I'd like
to hear of better products you've used that have withstood the test
of time and salty winters.  I realize prep is key here, but the best
prep can be ruined by inferior product.  Inquiring minds wanna know

thanks

DM&FS