Alkyd Resin — Similar in consistency to a thick Stand Oil, this medium is made from pure alkyd resin and a small amount of odorless thinner. Fast-drying and non-yellowing, it produces a flexible paint film. Use it to make other mediums or undiluted as a glazing and general painting medium. Completely compatible with oil paints, it imparts a satin gloss finish.

Cold Pressed Linseed Oil — Extracted through pressure alone, this genuine, cold-pressed linseed oil is less processed than alkali-refined linseed oil and much truer to what was used by early artists.

Damar Crystals — These crystals are used with turpentine in the traditional production of a Damar varnish. They're also useful for making an encaustic medium.

Impasto Medium — Made from inert, precipitated chalk and barium sulphate ground in linseed oil, this semi-transparent medium can be used to extend paint without altering its consistency or drying rate.

Lead Oil Ground — This is a traditional ground made from pure lead carbonate and just enough marble dust to achieve the desired amount of tooth and absorbency. Lead Oil Ground is a heavy, thick formulation.

Linseed Oil — This is a genuine linseed oil, pressed from flax seeds. Used as a drying oil, it forms a tough, resilient film on paintings.

Pure Beeswax Blocks — Blend with oil, resins, and diluents for use as a painting medium to impart a satin or matte sheen. For encaustic painting, use the blocks as a binding medium.

Pure Beeswax Pellets — Blend with oil, resins, and diluents for use as a painting medium. It imparts a satin or matte sheen. For encaustic painting, use the pellets as a binding medium.

Rabbit Skin Glue — Made from genuine rabbit skin, not hides or hooves, Williamsburg Rabbit Skin Glue is a traditional size for fabric support on panels. It seals porous fabric and isolates it from grounds or oil paints.

Stand Oil — This thick-bodied, polymerized linseed oil is heated in the absence of oxygen to a honey-like consistency. It levels well and produces an enamel-like sheen.

Sun Thickened Linseed Oil — Unlike many brands, this product is not artificially thickened. Williamsburg makes its Sun Thickened Linseed Oil using a long, slow, traditional process that exposes the oil to sunlight only during the spring and summer months, for a period of several weeks. This is a viscous, faster-drying oil with good leveling.

Titanium Oil Ground — This is a high-quality oil ground that contains no lead. Made from Titanium White, marble dust, and linseed oil for flexibility, this soft, fine white ground is so heavy, it can be cut in half with turpentine.

Wax Medium — Made from pure beeswax, Damar resin and refined linseed oil, Wax Medium contains no paraffins or microcrystallines. It can be used for glazing and impasto techniques, as well as for adding texture, body, and translucency.