Gamblin Cold Wax Medium a mixture of natural beeswax (wax pastilles), Gamsol and a small amount of alkyd resin. The term “cold” in Cold Wax Medium and Cold Wax Painting refers to the fact that heat is not required for working with this wax medium – as it dries by solvent evaporation (Gamsol), rather than the cooling of the wax, as in encaustic painting. As the Gamsol evaporates out of the medium, the soft wax hardens to the density of a beeswax candle.
Unlike other Gamblin painting mediums, which increase the flow and gloss of oil colors to varying degrees, Cold Wax Medium makes oil colors thicker and more matte.
Cold Wax medium is a dense paste, it is excellent in creating a variety of textures within a painting.