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

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 failed (as long as I follow the directions) to provide positive results. The only complaint I have is I don't always need a full tube. Smaller packaging (1 oz.) would be great.

We have been using 5200 for so many years and we just love it. In 2017 days before Irma and Maria - two CAT 5 hurricanes hit the US. Virgin Islands. We were putting a railing on our deck outside and it is a tile deck so we didn't want to screw it in as it would crack the tile. We used 5200 to secure the bases of the posts. Not only did they make it through TWO CAT 5 hurricanes but 5 years later they are all standing. You got to love this product. We also used it on a plastic drawer from the freezer that broke. Just a dab of 5200 and it is fixed. It's like the old saying it's not broke if you have duct tape. This product is far superior to anything we have every used. We also used it around the kitchen sink. You will never be disappointed with 5200.