Sikaflex 291 is ideal for all sealing/adhesive jobs on board, such as for deck fittings, hatches, leaks and for bedding of wooden decks to metal, gelcoat or wood. Sikaflex 291 is a fast curing, 1 component polyurethane based flexible adhesive sealant. Touch dry in 45 mins, it can be sanded or painted over in 4 days. Size: 300ml cartridge Supplied with a nozzle.