In the video “How to Apply Polyurethane for a Perfect Finish,” Paul from paulsDIYsolutions shares his extensive experience and knowledge on applying polyurethane to achieve a flawless finish.
With over 40 years of woodworking and finishing experience, Paul positions himself as an expert in wood finishing, focusing on the nuances of applying polyurethane correctly—a task that many struggle with.
Paul emphasizes that polyurethane is not like paint and requires a different approach for application.
He points out common mistakes people make, such as applying it too thickly or not allowing for adequate drying time between coats. According to Paul, the key to a perfect polyurethane finish lies in understanding the product’s properties and applying it with the right technique.
He distinguishes between water-based and oil-based polyurethanes, noting their differences in drying time, durability, and appearance. Water-based polyurethane dries quickly and remains clear, making it suitable for light-colored woods.
In contrast, oil-based polyurethane dries slower, offering a warmer, amber hue that enhances the wood’s natural color. Paul prefers oil-based polyurethane for its durability and flexibility, which is particularly important for surfaces that experience seasonal expansion and contraction.
Paul also discusses the importance of choosing the right brush for applying polyurethane. He advises against using foam brushes or cheap chip brushes, as they can leave bubbles, streaks, or bristles in the finish.
Instead, he recommends investing in a high-quality natural bristle brush for oil-based finishes or a synthetic brush for water-based finishes. A good brush will hold more finish, release it evenly, and leave a smoother surface.
Throughout the video, Paul provides practical tips on preparing the wood surface, mixing polyurethane with a thinner to achieve the right consistency, and applying thin, even coats.
He stresses the importance of patience and attention to detail, allowing each coat to dry thoroughly and lightly sanding between coats to ensure a smooth, durable finish.
Paul’s tutorial is an invaluable resource for anyone looking to improve their finishing skills. His clear, concise explanations and expert tips demystify the process of applying polyurethane, making it accessible to woodworkers of all skill levels.