Wood finishes come in various types, including gel stains, penetrating stains, sanding sealers, and putty sticks. Old Masters and Zinsser are some of the leading brands that offer these products. Gel stains are thick, easy-to-apply gels that offer rich colors and even coverage. Penetrating stains, on the other hand, seep deep into the wood grain to provide a natural look. Sanding sealers are applied before final finishing to seal and smooth the surface of the wood, while putty sticks are used to fill small holes and cracks in the wood. Overall, these wood finishes help protect and enhance the beauty of wood surfaces in homes and commercial settings.