Stains penetrate within the wood grain to protect against the elements. They also create a desired tint—darkening the surface while bringing out the best qualities of the particular species. Many stains include polyurethane, which forms a protective glossy outer layer. Eco-friendly stains made of natural resins and plant, earth, or mineral pigments provide a low-VOC product.Uses include decks, docks, fences, planters, siding, and interior wood features like casement and baseboards.
