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⚓ Seal it like a pro—permanent, waterproof, and built to last!
3M Marine Adhesive Sealant 5200 is a professional-grade, flexible polyurethane sealant designed for permanent bonding and waterproof sealing on boats and RVs. It cures fully in 5-7 days, resists saltwater and weathering, and maintains strong, flexible bonds even under vibration and shock. Ideal for use above and below the waterline on multiple surfaces, this trusted marine adhesive delivers long-lasting durability and easy application without mixing.



| ASIN | B0000AY6AO |
| Best Sellers Rank | #3,960 in Automotive ( See Top 100 in Automotive ) #46 in Body Repair & Restoration Adhesives |
| Brand Name | 3M |
| Color | White |
| Compatible Material | Fiberglass, Wood |
| Customer Reviews | 4.5 4.5 out of 5 stars (10,574) |
| Included Components | ADHESIVE SEALANT |
| Item Dimensions | 8.75 x 4.88 x 1.38 inches |
| Item Form | Paste |
| Item Type Name | 3M Marine Adhesive Sealant 5200 (05203) – Permanent Bonding and Sealing for Boats and RVs – White – 3 Ounces |
| Item Weight | 0.14 kg |
| Manufacturer | 3M |
| Material Type | Plastic |
| Model | 5203 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 051135052037 |
| Style Name | 5200 |
| Unit Count | 3 Fluid Ounces |
| Water Resistance Level | Waterproof |
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