• Nov 11, 2006 Quite simply, rust sucks. Most any vehicle
regularly driven during winters in the Salt Belt will fall
victim to corrosion, and the various spray-on undercoatings
available from the aftermarket have their shortcomings.
Specifically, the spray-on application of these coatings often
results in incomplete coverage, and what is applied will
typically degrade upon repeated exposure to a decade's worth of
abrasive road debris.  After dropping the fuel tank on our 1996
Buick Roadmaster, we found some oxidized ugliness despite the
vehicle's near-impeccable maintenance record. Fortunately, the
damage was caught before significant amounts of sheetmetal were
lost, and modern technology has provided us with the tools to
keep the situation from getting worse. A spray-on rubbery
undercoating had been applied at some point in this vehicle's
past, but as can be observed in the below pictures, it didn't
provide adequate coverage. Moisture, salt, and dirt managed to
get where the undercoated wasn't present, and t