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WATCO Exterior Wood Finish hardens in the wood, not on the wood.
WATCO Exterior Wood Finish is a penetrating oil that stains, seals, and protects outdoor wood in one easy step.
This unique penetrating formula provides protection from within the wood, not just on the surface. It will not chip, peel, wear, or wash away.
WATCO Exterior Wood Finish makes old, new, or pressure-treated wood water repellent. It resists the harmful effects of the sun and reduces warping and swelling.
Recommended uses: Treated lumber and unfinished, unsealed or stripped outdoor wood surfaces such as outdoor furniture, decks, smooth or rough cut siding, and fences.
WATCO Exterior Wood Finish is not recommended for primed or previously painted surfaces.