3M 7000000623 Marine Adhesive Sealant - 10 oz., White (Pack of 5)

I have all votes my whole life and this product. I have used hundreds of times and it’s always solves any issue. It’s just amazing how much more than it cost now.

Strong bond

3M 5200 may be the best product on the market for sealing boats. If the product doesn’t come undamaged you can’t use it. The product doesn’t come with an applicator tip you can’t use it. What’s wrong with Amazon in their shipping? You shipped me a product which was damaged and unusable AND NO APPLICATOR TIP! wasting my time not only can I not get my project done on time I have to get in the car and drive to the UPS store to return your product. Why did you send it to me a damaged tube in the first place with no tip, is this a joke. Maybe one of your fancy robots did it but if an employee did it, maybe they should be retrained! Thank you. Sincerely, for wasting my time. I only hope that the replacement is in usable condition with an applicator tip.

This product was used to help repair a very old cement statue that sits in a fountain and has a tube running through it to the top of the head to create a nice bubbling and trickling effect. After days or rain, the ground gave way under the heavy fountain and the little girl fell over, breaking the neck. The tube held the head and rest of the body together, but a large amount of cement around the neck crumbled. We applied this as a filler around the head and neck after using a cement adhesive to glue the head back onto the neck and shoulders. In a few days, all was dry, and it rained again--but this sealant held. Being waterproof is a necessity for a fountain statue and cracked fountain bowls.

Folks, if you have something that needs to be waterproof and almost permanently attached, this is the stuff! I worked for years in the boat business, and this is a "can't live without it" kind of product. It sets up and cures underwater and is immediately waterproof. The adhesiveness of this product can't be over-stated; don't stick it if you plan to move the item later. I've patched seats. convertible tops, and mounted thru-hull fittings WHILE IN THE WATER. It can be removed but it won't be easy. No, its not cheap but it does exactly what it says, and the peace of mind is well worth the price.

I would have been a lot happier if the nozzles had come with the caulk tubes.

This Marine Adhesive Sealant has good adhesion and feels strong. So far did not fell apart under water.

Worked great for my boat, definitely worth the price to know it’s sealed correctly.

Authentique produit 3M