Oil-based stains are a type of finish used to enhance and protect wood surfaces. They penetrate deeply into the wood, providing a rich color and a durable layer of protection. These stains are made from pigments suspended in oil, which helps them adhere well to the wood and resist wear over time. Applying oil-based stains requires careful preparation, including cleaning and sanding the wood surface. They typically take longer to dry than water-based stains, but they offer a more vibrant finish. Common uses include furniture, cabinets, and decks, making them popular among DIY enthusiasts and professionals alike.