
Water based varnish vs oil based varnish. If possible it is always best to use an acrylic based varnish for water based paints and oil based varnish for oil based paints to ensure good results. If you start early enough in the day you can apply the recommended four coats and sleep in the room that night. In the past oil based finishes were more durable than their water based counterparts. Depending upon the look you prefer one will likely be a better choice for your project than the other.
For water based varnishes hardening takes place as soon as the water has fully evaporated. This can distort the colors of the item you have painted. Water based polyurethanes provide a clear finish and have low odor. However oil based varnishes typically have a natural amber tint and often become more yellow over time.
Produce a deeper finish than water based varnishes. They were designed for commercialhigh.