3M marine adhesive sealant 5200 mahogany. The adhesive sealant is extremely strong retains its strength above or below water line. Stays flexible too - allows for structural movement. Has excellent resistance to weathering and salt water. Stress caused by shock vibration swelling or shrinking is effectively absorbed. Check the bonding and sealing jobs this product can handle for you: fiberglass deck to fiberglass hull wood to fiberglass portholes and deck fittings motors on fiberglass transoms under moldings hull seams above and below water line. Center board trunk joints. Between struts and planking. Stern joints. Deck housing etc. Easy to apply with manual caulking gun. Remains workable with trowel or spatula up to four hours after application. Won t sag or flow in vertical or horizontal seams. Application method: hand or pressure caulk. Brand: 3m. Capabilities: sustainability. Color: mahogany. Consistency: medium paste. Container volume: 0.1 gallon (us). Cure rate: less than 1 mm/24 hr. Elongation: greater than 800 percent. Hardness: 68 shore a. Industry - use: construction general industrial marine specialty vehicle transportation. Product form: cartridge. Skin time: greater than 48 hour. Solids weight percent (approximate): 95 percent. Tack free time: 48 hour. Tensile strength: 700 PSI.