A toughened, versatile, liquid epoxy for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. With a modulus of elasticity of 150,000 PSI, it is a bit more flexible than standard epoxies and polyester, but much stiffer than adhesive sealants. Makes structural bonds that can absorb the stress of expansion, contraction, shock and vibration. It is ideal for bonding dissimilar materials. It can be modified with WEST SYSTEM® fillers and additives, and used to wet-out fiberglass tapes and fabrics. 2-part epoxy with a 1-to-1 mix ratio, gives you 45 minutes of working time at room temperature. It reaches an initial cure in 7 to 10 hrs. and full cure in 24 hrs.655-K G/Flex Plastic Boat Repair Kit: A thickened, easy-to-use epoxy that permanently bonds fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. G/Flex is toughened to make structural bonds that absorb the stresses of expansion, contraction, shock and vibration. Glue resinous woods, exotic woods and a wide range of dissimilar materials. Repair aluminum, plastic and wooden boats, kayaks and canoes. Kit Contains 4-1/2 fl. oz. G/Flex 655 resin, 4-1/2 fl. oz. G/Flex 655 hardener (9 fl. oz. of mixed epoxy), 2 reusable mixing stick/applicators, 4 alcohol cleaning pads, 1 pair disposable neoprene gloves, 10 mixing palettes and complete handling and repair instructions.