Polyurethane is a very common varnish that offers a protective coating to your wooden surfaces. There are two main types: oil-based and water-based. Nick O’Keefe, the owner of Oak City Coatings ...
These finishes are available in several types, including water-based, oil-based, acid-cured and moisture-cured. No matter which type is used, all polyurethane finishes are very easy to maintain.
Researchers developed flexible, bio-based polyurethane foam using lignin extracted from pine. This eco-friendly alternative replaces 20% of petroleum-based chemicals and matches conventional foam in ...