3M Marine Adhesive Sealant Fast Cure 4200 White (06560)
One-part polyurethane sealant that cures quickly for above and below waterline joints. Noted for fast curing and flexible bonds; some customers report strong sealability and others report tube durability issues
Highlights
- fast cure time
- above/below waterline usage
- tough polyurethane formula
Pros
- fast-curing, single-component
- works above and below waterline
- flexible, weather- and salt-water resistant
Cons
- nozzle not included
- mixed tube durability and adhesion reports
Best For
Features
- One-part adhesive sealant that requires no mixing and cures quickly
- Cures in as little as 24 hours to reduce downtime
- Seals above and below the waterline for joints and access areas
- Tough polyurethane formula resists weathering and salt water while remaining flexible
- Allows disassembly without damage with medium-strength bond
