If you are building or considering building a
steel boat, the ultimate form of
corrosion protection is to combustion spray the
hull before coating with zinc or
aluminum. I have
for sale a complete Sulzer-Metco Roadrunner combustion spray unit along with digital coating gauge, 300 lb. sandblasting pot, hose and various tungsten nozzels, helmet, filters, hoses etc. Also a 125 CFM Ingersol Rand
Diesel compressor(older but runs great). The Spray unit has been used for just one boat(mine) and is in excellent condition.
Email for pictures, specs. $8500 for the lot. Will separate some.