Tack-free in 48 hours, cures in 5-7 days with no shrinkage. Easy to apply with manual caulking gun. Remains workable with trowel or spatula up to four hours after application. Will not sag or flow in vertical or horizontal seams. For bonding and sealing: fiberglass deck to fiberglass hull, wood to fiberglass, portholes and deck fitting, motors on fiberglass transoms under moldings, hull seams above and below waterline, center board trunk joints, between struts and planking, stern joints, deck housing, etc.