3M Marine 4200 Adhesive/Sealant Fast Cure
3M Marine Adhesive Sealant Fast Cure 5200. Faster curing  version of 3M Marine Adhesive Sealant 52OO. Extremely strong and retains its strength above or below  the waterline. Stays flexible.  Watertight bonding/sealing of fiberglass, gelcoat and wood. Ideal for through-hull fastening, deck  fittings, railings  and transducers. Best  when  no removal is anticipated.