3M Marine White Adhesive Sealant 5200 3 fl. oz. Carded Pack

from Kelley99

Would not use anything else if needed to protect against contact with water

from Donald

Seals beneath the water line long term

from Joethehandyman

I've used 5200 for a number of applications, the most critical of which was for the installation of two large brass port hole windows on a house. This was in an area that is bordered by the ocean...

from Cisco Kid

I have used the #5200 dozens times, on my repair service, and I can truly say it's the best, and the fun thing is I keep finding uses for it. I just want to see if you could put it on a plastic gas...

from Bluefin

I bought this to do some transom repairs. It did not fail to do what I needed. I have used it to seal building penetrations (electrical & plumbing). All have remained weather tight. It has never fa...