I coated my 60s fiberglass motorcycle tank after the seams failed. It didn't seal the higher back edge (gravity?) and leaked gas in one spot. Can I do a recoat over the KBS? Do I need a whole new kit?

The Tank Sealer does not always stick to itself unless it is scuffed up or etched with Fusion Self-Etch Primer. If you could clean the tank really well with AquaKlean, then roll a nmice thin coat of Fusion Self-Etch Primer on the inside of your tank, you could apply another coat of Tank Sealer.

I have the same problem.  If I decided to strip the inside of the tank, how hard will it be to get all the stripper and tank seal out?  Does it just rinse out?

Here are some great directions for stripping the tank: Use KBS Strip (or a paint stripper containing Methylene chloride) for the most effective removal of an old failed coating. Pour some KBS Strip into tank and carefully rotate tank to allow contact with all sides. It may take multiple applications of KBS Strip to finish the job completely. Old Sealer may come loose in big chunks or small pieces so use a long tweezers-type tool to help remove it from the tank. After stripping is complete, rinse tank generously with water and proceed with the KBS 3-Step System for Fuel Tank Preparation & Sealing. (NOTE: When stripping a Fiberglass Tank, surface contact with the stripping agent should be kept to a minimum to avoid the attack & weakening of the fiberglass resin.)

Please let us know if that helps to answer your question.