Eastwood Internal Frame Coating w/Spray Nozzle
Product Review (submitted on June 18, 2011):
We used this to seal any remaining rust on the inside of a Miata rocker panel (not enough to justify a new panel), and it worked perfect. I won't know how well for several years, but will only know if rust comes back. So we'll look at it as "no news is good news". The product was great, and definitely made the difference in getting to otherwise impossible to reach spaces.