Wood Stains & Sealers

Pressure treatment protects dock lumber from rot, but it does nothing to stop UV graying, surface checking, or the water absorption that leads to warped boards. A quality marine sealer is what keeps a wood dock looking new past its second season.

Dock Builders Supply carries stains and sealers formulated specifically for saltwater and freshwater exposure, including the full WoodRx line of one-coat, water-based products. They go on fast, cure clean, and hold up to constant wet-dry cycling far better than deck stains sold at big-box stores.

Building new? Look at SunWalk composite decking if you would rather skip refinishing altogether. Otherwise, shop the sealers below and call us if you need help matching a product to your lumber.

Browse the complete Decking Products collection to compare every option we carry.

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Over 10,000 marine-grade parts
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Ships within 1 business day from our USA warehouse.
30 years in business

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