3M marine adhesive sealant white. 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. Tough/flexible polyurethane polymer. Non-shrinking. One-part moisture cure. Non-sagging formula. Fast cure formula. Application method: hand or pressure caulk. Brand: 3m. Capabilities: sustainability. Color: white. Consistency: medium paste. Cure rate: 3 mm/24 hr. Elongation: greater than 900 percent. Hardness: 60 shore A. Industry - use: construction, general industrial, marine, specialty vehicle, transportation. Product form: tube. Skin time: 60 - 120 minute. Solids weight percent (approximate): 95 percent. Tack free time: 1 hour. Tensile strength: 600 psi.