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โ Seal your marine projects with confidence โ the ultimate flexible fortress!
3M 05205 Marine Adhesive Sealant 5200 is a black polyurethane formula designed for permanent, flexible bonding and sealing of marine substrates like wood, fiberglass, and metal. It offers superior resistance to saltwater and weathering, cures over 4 days with 48 hours to handling strength, and absorbs stress from vibration and movement, making it ideal for demanding marine applications above and below the waterline.



| ASIN | B000Y89JC8 |
| Best Sellers Rank | #67,572 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #147 in Silicone Sealers |
| Brand | 3M |
| Brand Name | 3M |
| Color | Black |
| Compatible Material | Fiberglass, Wood |
| Customer Reviews | 4.6 out of 5 stars 1,605 Reviews |
| Global Trade Identification Number | 00051135052051 |
| Included Components | marine sealant |
| Item Dimensions | 36 x 124 x 224 millimeters |
| Item Form | Liquid |
| Item Type Name | marine sealant |
| Item Weight | 4.8 Ounces |
| Item dimensions L x W x H | 36 x 124 x 224 millimeters |
| Item weight | 4.8 Ounces |
| Manufacturer | 3M |
| Material | Polyurethane |
| Material Type | Polyurethane |
| Model | 5200 |
| Number of Items | 1 |
| Part Number | 051135052051 |
| Style | 5200 |
| Style Name | 5200 |
| Surface Recommendation | Floor, Wall |
| UPC | 051135052051 |
| Unit Count | 3 Milliliters |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |
D**N
long set time- unmatched flexibility and toughness
I actually use this to seal up busted drysuit seams. It's thick, but pliable, and takes forever to set, but in that time it seeps into the neoprene pores and fills anything from problematic pinholes to blowouts. stuffs tough and flexible, just a pain to use because of the cure time. worth it though
S**R
Excellent
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.
J**L
Buena calidad
Tarda en curar pero cuando lo hace queda bien aderido
M**L
Patched stress crack on my rubber winter boot
We'll see how long it lasts so far so good.
W**E
Good product for under water use.
Used this for mounting a transducer plate on the transom of my 14โ boat.
Trustpilot
1 month ago
1 week ago