












⚓ Seal your adventure with 3M’s toughest marine adhesive — don’t let leaks sink your style!
3M Marine Adhesive Sealant 5200 is a professional-grade polyurethane sealant designed for permanent, waterproof bonding of marine substrates like wood, fiberglass, and metal. It offers exceptional flexibility to withstand vibration, swelling, and shock, with a 48-hour curing time and proven resistance to saltwater and weathering, making it the industry’s trusted choice for above and below waterline repairs and installations.






































| ASIN | B0000AY6AC |
| Best Sellers Rank | #1,250 in Automotive ( See Top 100 in Automotive ) #8 in RV Sealants |
| Brand | 3M |
| Color | White |
| Date First Available | June 15, 2006 |
| Department | unisex-adult |
| Global Trade Identification Number | 00051135065006 |
| Is Discontinued By Manufacturer | No |
| Item Form | Paste |
| Item Weight | 12.8 ounces |
| Item dimensions L x W x H | 2 x 12.4 x 2 inches |
| Item model number | 5200 |
| Manufacturer | 3M |
| Material | Polyethylene |
| National Stock Number | 8030-01-187-8439 |
| Number of Items | 1 |
| Product Dimensions | 2 x 12.4 x 2 inches |
| Style | 5200 |
| Surface Recommendation | surface_recommendation |
| UPC | 051135065006 |
| Unit Count | 10.0 Fluid Ounces |
| Water Resistance Level | Waterproof |
T**E
Works great
This is always the best choice
J**A
Good product
Good adhesive. 3m. Can't go wrong.
R**E
Works great
Works great got this for I can glue my seats back the plastic frame on sxs water proof
E**.
fast cure white is the best on the market.
i worked in the boating industry for 35 yrs. doing everything bow to stern top to bottom inside and out. the black is ok but takes quite a while to cure. if you really want an fast indestructable adhesive sealant use the 3m white fast cure. this stuff actually cures faster when exposed to moisture just as it says on the package. many many times i have used this on thru hull fittings, bonding wood, fiberglas, steel, stainless, aluminum and many other materials and it even cures underwater. it will cure in about 12 hrs. once cured it bonds to practically anything. i even use it to repair soles on my shoes if they come apart. then they are better than new. i have used this stuff wherever you need a serious rubber seal, bonding materia, even seals water pipes,fittings etc. i wish they had made it in black fast cure. not sure why unless there is a difference in the chemical makeup. it can be painted using enamel, polyurethane, laquer. not sure about latex, maybe acrylic. one thing is its almost impossible to cut or remove it.
L**.
Nice sealant.
Very good adhesive, no issues with using on an aquarium filter housing.
R**L
Fixed cracked shower pan!
Folks there is a other version that allows for curing in 24 hours, this takes 4-7 days to cure and is quite pliable after initial set. I used on a cracked all-in-one shower pan. I was skeptical for the first 24-48 hours because of the slow cure. Be patient, when it cures it is stronger than steel and has some flex to it - perfect for standing in the shower and not worrying. It created a water tight that will probably last longer than the house itself. Again, if you need something to cure faster, seek out the similar name 3M. This is the real deal!!!
T**R
Great sealer.
Hold well. Form any under water application. It’s a little messy to work with.
R**.
No plastic tip came the 10 fl oz cartridge!!
The plastic tip is missing from the 3M 5200 that was delivered minutes ago 3-10-2026. How do I get a plastic tip for the 10 fl oz cartridge? Must it be returned and reordered and hope the next one comes with a tip?
N**A
The 3M White Marine 5200 sealant is great as it solves the issue of mine. Zedi Online was excellent in customer service response, as Mr. Aman is so responsive to my emails and messages as he was so great to help me with the fast delivery. He really puts 100% effort into resolving the issue and helping customers like me. From delivering on time, to giving great communication. A big Thanks to Aman as well as Zedi Online😊
J**R
Used to install awning rail on my tent trailer. I was somewhat apprehensive about whether this would hold or not but after driving 4 hours, and on dirt bumpy roads, it has held up amazingly.
S**R
Delivered on time, well packaged. Used on the boat transom to fill in transducer screw holes. It's easy to use. It does take a week to fully cure but works perfectly. I recommend for anyone working on a boat. Use a caulk tube plug to seal and save unused product.
A**R
Great product. |Awesome adhesion and sealing qualities.
R**R
I use this to seal the leak that was coming from the roof rails of the 2007 Honda Odyssey. The original seals have already dried up. Be prepared to have messy hands when using the stuff. This particular sealant will take a few days to cure. People say that they will cure faster when it makes contact with water. There is also a fast cure version that hardens in 24 hours. That one I used for a paddle boat.
Trustpilot
1 month ago
1 month ago