3M 4000UV Fast Cure Marine Sealant White 10 oz. Cartridge. Spinning Model 6356 has a translucent

Model 6356 has a translucent back so it can also be used to light an interior compartment

Upper Florida Keys

18271 and 18291 designed to retrofit Model 18261

Intermittent Rating: 500

These flapper valves do not make a perfect seal

3M 4000UV Fast Cure Marine Sealant White 10 oz. Cartridge. Spinning Model 6356 has a translucent3M 4000UV Fast Cure Marine Sealant White 10 oz. Cartridge. A one part sealant that cures to form a firm, rubbery waterproof seal. Its flexibility allows for the dissipation of stress caused by shock, vibration, swelling or shrinking. Use above or below the waterline. Superior UV resistance properties. Tack free in less than 2 hours, cures in 24 hours.