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3M 4000 UV is a fast cure medium strength sealant used to bond and seal metal, gelcoat, fiberglass, wood, and plastic. A one-part polyether adhesive sealant with excellent UV resistance, 4000 cures to a firm, rubbery, watertight seal. This sealant is ideal for bonding deck hardware, hatches, portholes, railings, and navigation lights.
Suitable for use both above and below the waterline, 4000 Fast Cure is sometimes more appropriate than 3M 5200 polyurethane for parts that may never need removal or replacement. Available in White in various sizes.