Cold Pressed Linseed Oil A slightly yellow oil, which is extracted without the use of heat & dries slightly quicker than refined linseed oil. Improves flow. Increases gloss & transparency. Reduces consistency & brushstrokes. Ideal for grinding pigments.Cold Pressed Linseed Oil A slightly yellow oil, which is extracted without the use of heat & dries slightly quicker than refined linseed oil. Improves flow. Increases gloss & transparency. Reduces consistency & brushstrokes. Ideal for grinding pigments.Cold Pressed Linseed Oil A slightly yellow oil, which is extracted without the use of heat & dries slightly quicker than refined linseed oil. Improves flow. Increases gloss & transparency. Reduces consistency & brushstrokes. Ideal for grinding pigments.