We use an oil-based polyurethane finish in this story, though you can also use water-based urethane finishes with great results. But the color and depth you get are no match for oil-based urethanes.

Polyurethane is a chemical sealant for wood. It’s used to protect your wood floors and furniture from scratches, water damage, and other signs of wear and tear. There are two ma ...

Diisocyanates are used in the preparation of all polyurethanes, ranging from the foams used in shoe soles to the thermoplastics used in cell phone cases.