5200 Marine Sealant - Fast-Cure, High-Bond, UV-Resistant Underwater Marine Adhesive Sealant for Boats, Hulls, Decks, and RVs - with Gloves, Nozzle, White 3 oz

Honestly, this sealant really surprised me in a good way. It feels like good quality from the moment you apply it, strong adhesion and very easy to work with. I used it on an area that’s constantly exposed to water, and so far it’s been holding up perfectly with no leaks at all. One thing I really liked is how fast it cures, so you’re not stuck waiting forever to continue your project. It also applies smoothly and leaves a clean, neat finish.

Wonderful product! Highly recommend!

Product works well, but very messy to handle.

That stuff works well!! A little messy but so worth it!

If you’re looking for a sealant that doesn’t mess around, this is it. 3M 5200 is hands down one of the strongest marine sealants out there. Once it cures, it creates a permanent, watertight bond that holds up incredibly well against water, weather, and vibration.

Sealant may be good but the rear of the tube blew open and the black sealant got all over my boat carpet. Can't speak to the product effectiveness, but the hassle of the cleanup gives this a poor rating.

Really good bond, the color seen to be stable, not so easy to used most used gloves or have some gasoline to clean your self after used I still have a bit of doubt on the adhesion of the product still need to test it for the application I using it thickness is good you can manage it good value for the money spend

My son crashed his E bike and the battery broke off. The frame tried gorilla glue and two other brands didn’t hold cause it was too rigid. I gave this a shot because boats bounce on waves a lot and need to be flexible. Use this product and the batteries on the frame 10 times stronger than the original amount. Thank you for saving me hundreds on a new battery.