Choosing the right finish for your hardwood floors can be pivotal in achieving the desired look and longevity. At JRK Flooring, we understand the importance of making an informed decision between oil-based and water-based polyurethane finishes. This guide provides a detailed comparison to help you select the best The main difference lies in their composition. Water-based polyurethane is a combination of acrylic and polyurethane that uses water as a solvent, while oil-based polyurethane contains synthetic resins and linseed oil, using a petroleum-based solvent.