Pettit EZ-Wood Sealer Marine wood sealers are used to seal raw wood surfaces to help prep for painting and varnishing. Boat wood sealers help to provide a more uniform surface for applying other finishing products such as topside or bottom paints. Pettit EZ Marine Wood Sealer is formulated to work on all types of wood surfaces and provides a moisture barrier to help stop peeling. Boat wood sealers prevent primers, paints, and varnishes from being absorbed into the wood surface. Pettit marine woo