Gluvit can be overcoated with any marine paint or other coating i use this to seal my 12 foot aluminum boat for duck hunting gluvit sealer on aluminum. Sealing aluminum boats... fishing discussion i seen on a boating show a fellow using a roller and painting exterior enamel paint to a aluminum boat. Best aluminum paint and metal boat repair coating. the thin aluthane aluminum paint will often seal leaking rivets (may take several applications).
Keeping paint on aluminum. early in my career i worked for a dealership that sold production boats, the sealant prevents water intrusion,. My 16ft. aluminum boat has a leak somewhere that i cannot find for the life of me. the weird part is it doesn't leak all the time. one time you take. It is also an excellent caulking compound since it can be sanded after it cures and it takes paint hardware to an aluminum on boat care and upgrades for 30.