3M Marine Adhesive Sealant Fast Cure 4200 (06560) – Semi-Permanent Flexible Adhesive Sealant for Boats and RVs, White, Flexible Bonds, Underwater-Safe, 295 mL Cartridge

Great product! Works great! Highly recommend!

Must have if you own a boat. Not permanent but seals great.

I have used this product before and it is great. One thing that drives me crazy is when you order these and they are over 18 months past the expiration date, the one I got was well within that, so I was happy. I use the 4200 if I think I may have to remove the item in the future, if I never want it to come lose I use the 5200.

This sealant is excellent. Cure time gives plenty of work time while fast enough to get back on the water quickly. Being in a tube makes easy to dispense and spread. It stands up to weather and vibration great. The adhesion is great and has held strong not had a single drop of water get by. Cleanup is easy if you do it right away. Great value in sealants.

It a good sealant. It sealed my leaking roof skylight. Going to purchase another tube to seal some minor leaks,

Purchased this to seal a crack at the bottom of our fiberglass pool slide. Suggested by a friend who uses it to seal cracks in his fiberglass boat. Seems to be doing the job at the moment. Easy to apply. Once it’s opened though it will cure inside the tube opening, so make sure you air seal the tube opening somehow.

dont use this if you want to remove whatever youre adhering.i used when installing an aftermarket swim platform on my boat. real deal stuff

What can one person say except that when you want or need the best marine sealant made it's 3M marine sealant products!!!!!