Ottosson Boiled Linseed Oil can be used to nourish dry wood surfaces, as well as added to Ottosson Linseed Oil Paint to create a "primer" coat for interior surfaces or to mix a custom stain. Linseed oil has been used to preserve and coat wood surfaces for generations. This is a purified/degummed oil that has had the harmful protein removed, creating a world-class product ideal for using with Ottosson Linseed Oil Paint.