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

Good stuff. Only product I’ll use for adhesive on my boat. I use it to seal any hull holes as well. Tries quickly also. Last a longer than the regular silicone the last guy used:-(

Stops Leaks fast

It’s a good size to work small projects. Heavy duty adhesive that can cure even when wet. Product arrived fast enough that I didn’t need to go out and run it down.

The good- This is easy to use on dry or wet surfaces. It cures pretty quickly. Application can be a little tricky because the material is sticky, so having a few different applicators to use is helpful. It works well to fill small cracks and scrapes on boats, but also on other fiberglass/plastic items like car toppers on pickups and cracks in coolers. The negatives are mostly in application...you need to be both patient and work with little delay. The material is putty like, but more like a thick toothpaste. It takes some care to apply it smoothly because it sticks to the applicators, so you need to keep them clean.. If you are repairing a lot of little dents, scrapes or splits, the one tube might not be enough as it's only 3 oz. If you are filling a fairly deep crevice/cut, you're probably going to want to put in a number of successive layers and overfill a bit. Use a fine sandpaper after it cures to smooth the area out. Overall, easier to use than materials that need to be mixed, but size of tube limits how much you can repair at any one time.

Great Product, worked as advertised.

got enough to finish project before the tube burst apart, this was stale, rotate your stock.

Product worked great on my poly stock tank pool. Kinda sad the gloves and boat in the advertisement didn’t come with 5200 Marine Sealant.

Used this on some small holes in pool steps and in two months it just dissolved. Useless. They refunded my money even though I told them that wasn't necessary as I used the product on another application with great results.