3M 4000 Marine Adhesive

If you’re installing thru-hull fittings for your new ballast system, or you need to seal the connection between two threaded fittings, 3M 4000 Marine Adhesive is the ideal product. Fast curing (dries completely in just 24 hours), non-corrosive (ideal for metal fitting connections) and white in color, 3M 4000 Marine Adhesive performs perfectly for years of dependable leak free use.

This is the same product used to install the thru-hull fittings and hardware at the factory when your boat was built, so do the job right when installing additional fittings for a ballast system.

One 3 ounce tube provides more than enough adhesive to install all of the thru-hull connectors in your boat, typically providing sealing for 18-20 fittings.

3M Marine Part # 051135-05280