Flex Seal On Wood. The drying time of flex seal on a wood deck is around 2 to 3 hours and the curing time is around 24 hours. Free, easy returns on millions of items.

The drying time of flex seal on a wood deck is around 2 to 3 hours and the curing time is around 24 hours. But this can differ according to the area where your wood deck is placed. Free, easy returns on millions of items.