3M Marine Sealant Fast Cure 4200 White is a one component, fast curing polyurethane adhesive/sealant that chemically reacts with moisture to deliver strong, flexible bonds to wood, gel coat and fiberglass. 1/10 gal Cartridge.
| Typical Use: | It forms watertight, weather-resistant seals on joints and boat hardware above and below the waterline. In addition, its flexibility allows for dissipation of stress caused by shock, vibration, swelling or shrinking. | 
| Chemical Composition: | Polyurethane | 
| Color: | White | 
| Components: | 1 part | 
| Cure Time: | 24h @ 25 °C | 
| Hardness: | 40 A | 
| Service Temperature: | -40 to 88 °C | 
| Specific Gravity: | 1.18 | 
| Tack Free Time: | 1 to 2h |