Even a minor leak on a boat can cause serious and expensive damage, especially to fiberglass coring. That's why it is important to use a quality, marine-grade sealant like Life-Calk® from BoatLIFE. Formulated specifically for use on watercraft and made in the USA, it is a long-lasting, permanently-flexible polysulfide compound that can be used above or below the waterline.

Unlike many sealants, high-quality Life-Calk bonds to fiberglass, wood, metal, glass and itself. It is resistant to teak oil, gasoline and diesel fuel.

Easy to use, Life-Calk is tack-free in one to three days. It cures to a firm, waterproof, non-shrinking seal, making it an ideal solution for bedding teak decks, hardware, ports and hatches, thru-hull fittings and underwater seams. The sandable sealant can be top-coated with many paints. It has excellent adhesion qualities and can be applied to damp surfaces, even below the waterline for emergency repairs.

For oily woods such as teak, Life-Calk Primer promotes maximum adhesion. It is a one-part, resin-based primer developed for use with Life-Calk.

Life-Calk is available in white, black, mahogany and teak brown. Suggested retail prices are $9.96 for a 1 fl. oz. tube; 3 fl. oz. tube, $16.09; 5.2 fl. oz. half cartridge, $19.18; 10.6 fl. oz. cartridge, $29.85; 20 fl. oz. chubb, $52.35; and 8 fl. oz. Life-Calk Primer, $25.44.

Contact BoatLIFE, a division of Life Industries Corp., 4060 Bridgeview Dr., North Charleston, SC 29405. Toll-free 800-382-9706; Fax: 843-566-1275. www.boatlife.com.