For timber decks that are completely watertight and weather resistant, Sika has developed Sikaflex 290 DC. Extremely easy to use, this one-part polyurethane deck caulking compound can be sanded flush with the deck when cured to give a beautifully neat, clean finish.
Sealing
Resistant to weathering, seawater and ultra-violet radiation, Sikaflex 291 is the perfect all-rounder: an all-purpose flexible marine sealant that bonds extremely well to all the standard materials used in boat construction. Its outstanding elasticity ensures a durable, long-lasting seal.