3M Marine Adhesive Sealant Fast Cure 5200 (05220) Permanent Bonding and Sealing for Boats and RVs Above and Below the Waterline Waterproof Repair, White, 3 fl oz Tube 3M Marine Adhesive Sealant 5200 Fast Cure is a one-component, high-strength, moisture-curing, gap-filling polyurethane for permanent bonding of aluminum, wood, gelcoat and fiberglass This fast cure version of 5200 is formulated to typically cure within 48 hours It chemically reacts with moisture to provide strong, flexible bonds above or below the waterline. Features CURES FAST ? One-part adhesive sealant requires no mixing, typically cures within 48 hours so you can get back on the water faster USE WHAT THE PROS USE ? Extremely strong adhesive sealant retains strength above or below waterline BONDS PERMANENTLY ? Ideal for sealing, bonding and attaching on the interiors of boats and RVs, or on exteriors below the waterline and where shielded from the sun LONG LASTING FORMULA ? Tough polyurethane polymer resists weathering and salt water WON?T CRACK OR PEEL ? Stays flexible, retaining strong bonds even during vibration, structural movement or shock USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.