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⚓ Seal your marine projects with confidence—where strength meets flexibility!
3M 05205 Marine Adhesive Sealant 5200 is a high-strength, black polyurethane sealant designed for permanent, flexible bonding of marine materials like wood, fiberglass, and metal. It offers superior resistance to saltwater and weathering, cures fully in 4 days with handling strength in 48 hours, and absorbs stress from vibration and movement, making it ideal for demanding marine applications above and below the waterline.
| ASIN | B000Y89JC8 |
| Best Sellers Rank | #63,148 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #150 in Silicone Sealers |
| Brand | 3M |
| Brand Name | 3M |
| Color | Black |
| Compatible Material | Fiberglass, Wood |
| Customer Reviews | 4.6 out of 5 stars 1,569 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 | 136 g |
| Item dimensions L x W x H | 36 x 124 x 224 millimeters |
| Item weight | 136 g |
| Manufacturer | 3M |
| Material | Polyurethane |
| Material Type | Polyurethane |
| Style | 5200 |
| Style Name | 5200 |
| Surface Recommendation | Floor, Wall |
| UPC | 051135052051 |
| Unit Count | 3 Milliliters |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |
M**L
Patched stress crack on my rubber winter boot
We'll see how long it lasts so far so good.
J**L
Buena calidad
Tarda en curar pero cuando lo hace queda bien aderido
W**E
Good product for under water use.
Used this for mounting a transducer plate on the transom of my 14’ boat.
P**.
Great for permanent installs
Nothing better than 3M Marine Sealant 5200 , works great and hold up to extreme conditions
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.
Trustpilot
3 weeks ago
3 weeks ago