Sikaflex 290DC is one of the best Deck Caulking Compounds
Sika 290DC is a one component UV-Resistant, polyurethane-based joint sealing compound specially formulated for caulking joints in traditional timber marine decking. The compound cures to form a flexible elastomer which can be sanded.
Advantages & Benefits of Sikaflex 290DC Deck Caulking:
Resistant to seawater & freshwater
UV and weather resistant
Can be sanded
Non-corrosive
One component
Semi Self Leveling