How to Seal a Treated-Wood Picnic Table
- 1). Mix together an oxygenated cleaner in a bucket with some water, according to the package instructions.
- 2). Rub the surface of the treated lumber with the oxygen cleaner using a stiff brush. Rinse each section with a hose as you go.
- 3). Moisten the lumber again and apply a wood brightener to the table using the scrub brush. Rinse the wood brightener once it has penetrated the wood for the recommended amount of time.
- 4). Paint the wood of the picnic table with a penetrating, water-repellent sealer. This sealer is available from most good hardware stores. Put the table in a waterproof area until the sealer has had time to dry.
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