Unlike shellac or varnish, which tend to dull over time and can wreak havoc on stain colors, polyurethane is a durable finish that will resist abrasions, water, heat and other everyday wear. It is available in oil- and water-based versions, which are suitable for different projects and environmental considerations. Whether you opt for an oil- or water-based finish, proper preparation and application are key to getting the best results.Read more :polyurethaneroofcoating.co.uk

The type of sheen you choose depends on the look you want and how much wear your wood surface will receive. Gloss provides the highest level of sheen and reflects light for a polished appearance; semi-gloss is ideal for those who prefer moderate shine; satin offers a slight sheen that enhances the natural wood grain pattern.

Step-by-Step Guide: How to Apply Polyurethane to Plywood

You can apply a polyurethane finish by brushing or spraying. Using a high-quality brush will result in a smooth, even coat with no visible brush strokes. You can also buy a polyurethane finish in an aerosol for easier application to large surfaces or hard-to-reach areas. A face mask is recommended for spraying.

If you choose to use an oil-based polyurethane, you should follow all of the safety precautions that are outlined in the manufacturer’s instructions, including wearing an industrial face mask and working in a well-ventilated area. You can expect to need two to three coats to achieve a tough, abrasion-resistant finish. Oil-based polyurethane takes longer to dry than water-based products, and you should wait for it to completely cure before handling it.