Customer Reviews for 3M 10 oz. White 5200 Marine Adhesive Polyurethane Sealant

Great product with a great balance in working with wood and fiberglass.

Seal my boat from leaks

Excellent for boat work

The cautions on this product are concerning, but it applies well. It does take a week to fully cure.

It is a little watery so be cautious. it may drip. And because it takes a while to dry. But once it's dry it has a very good adhesion. It is very waterproof.I would recommend this silicone.

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.

Worked as advertised. Was applied in cooler weather (mid 50's F), so took 5-6 days to cure and get hard as rock.

Almost seemed a bit set already in tube. Not sure how long it's been on shelf. Very tough to get out with a quality gun.

Once it cures (48 hours for me) it's like hard rubber

Am EXCELLENT PRODUCT but it’s a little pricy for a tube of caulk. That being said, it’s AWESOME stuff!!!

Rating provided by a verified purchaser

Rating provided by a verified purchaser

Rating provided by a verified purchaser

For underwater Marine sealant one of the best

1 of the tubes was opened

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.

Excellent marine sealent.

Strong glue use the set wall mirror

Works good on deck installations of hardware on my fiberglass boat, both above and below the waterline. Would buy again!

This is the strongest adhesive I’ve heard of or ever tested. Be careful how it’s used! So ridiculous or impossible to separate parts .

Worked great to fix my boat

Used to seal a leaking roof on a 2007 Honda Odyssey. Worked great.

The stuff works good except home depot's stock was 3 years expired and would crush the tube and couldn't get half of it out so I had to bring 2 used crushed tubes back for exchange to finish the job

Gets dry very fast and seal all type of tubing for jetski and boats

Works great but what a mess lol