3M Marine Adhesive Sealant 5200 is a one-component, moisture-curing polyurethane formulated for permanent bonding and sealing in marine environments. It is engineered to bond wood, gelcoat, and fiberglass while creating a waterproof seal on joints and boat hardware—both above and below the waterline.
This sealant cures to form a firm, rubbery seal that remains flexible, allowing for structural movement. With over 50 years of trusted use throughout the marine industry, 3M 5200 has earned its reputation for durability. It retains its grip even when exposed to constant wave action and performs reliably in both wet and dry marine environments with excellent resistance to weathering and salt water.
Features and Benefits
- Moisture-Curing Polyurethane: Activates and hardens through exposure to moisture, allowing it to cure effectively in marine conditions.
- High-Strength Waterproof Seal: Forms a permanent, rubbery bond that resists water infiltration and won’t deteriorate over time.
- Flexible Formula: Stays flexible after curing to allow for structural movement.
- Salt and Weather Resistance: Excellent resistance to weathering and salt water exposure.
- Ready-to-Use: The sealant is ready to use straight out of the tube with no mixing required.
Specifications
- Brand: 3M
- Model: 05220
- Product Type: Marine Adhesive Sealant
- Size: 3 oz tube
- Color: White
- Cure Type: Moisture-curing
- Material Compatibility: Wood, gelcoat, fiberglass
