Protect and enhance your wood surfaces with high-performance sealers and finishers. Whether you're working on furniture, flooring, decks, or trim, we offer a wide selection of products designed to bring out the natural beauty of wood while providing long-lasting protection. Choose from oil-based, water-based, and environmentally friendly options to suit your project’s needs. Our collection includes clear finishes, stains, and specialty coatings for both interior and exterior use. At Windsor Plywood, we specialize in premium and hard-to-source finishing products trusted by professionals and DIYers alike. Many of our sealers and finishers are Canadian-made and selected for their quality, durability, and ease of application. Need help choosing the right product? Our knowledgeable staff is always ready to provide expert advice and personalized recommendations. Visit your local store today and get everything you need to finish your project with confidence and care.
Windsor Plywood carries Osmo Polyx-Oil natural oil-wax floor and furniture finishes, Varathane polyurethane in oil-based and water-based formulations, Watco Danish Oil and penetrating finishes, Consolidated Coatings exterior and interior products, and related primers, stains, and topcoats. Both interior and exterior products are available across a range of wood applications.
A sealer penetrates the wood surface and prepares it for a topcoat by sealing pores, providing a uniform base, and improving adhesion of subsequent coats. Sealers include shellac, sanding sealer, and pre-stain conditioners. A finish is the final topcoat layer that provides the surface protection — polyurethane, varnish, lacquer, and oil finishes. Some penetrating oil finishes function as both sealer and finish in a single product.
Oil-based polyurethane is the traditional standard for hardwood floors due to its durability, self-levelling properties, and warm amber tone that complements most wood colours. Water-based polyurethane dries faster, has less odour, and remains clearer without the amber cast. Osmo Polyx-Oil and similar penetrating oil systems provide a natural look and spot-repair capability at the cost of some surface hardness. The best choice depends on the wood species, desired appearance, and maintenance preference.
Penetrating exterior oil stains and semi-transparent deck finishes outlast film-forming paints and solid stains in exterior applications on decking and siding because they do not peel as they age. Penetrating finishes break down gradually and can be cleaned and recoated without stripping, while peeling film finishes require significant preparation before recoating. For maximum durability on horizontal surfaces like decks, choose a penetrating oil-based product rated for deck and dock applications.
For most interior wood applications, a separate sealer coat is not required before Varathane polyurethane. The first coat of thinned polyurethane (about 10 percent mineral spirits for oil-based, water for water-based) acts as a penetrating sealer. A dedicated sanding sealer provides a faster first coat build but requires sanding before topcoating. On extremely porous woods like pine, a shellac sealer coat before the first polyurethane coat provides more consistent results.