Varnish

Varnish is a protective finish primarily used in woodworking but also for other applications, producing a hard, clear, and shiny surface that enhances the underlying material's appearance. It is made from a combination of a drying oil, a resin, and a solvent or thinner. The resins used can be synthetic or derived from natural sources like tree sap or insect secretions.

The scent of varnish is typically strong and pungent, often described as sharp or chemical-like. This distinct odor comes from the volatile organic compounds (VOCs) it emits, mainly during the drying process. Components of its scent profile might include hints of the specific resins used—such as piney notes from pine resins or slightly sweet, balsamic undertones if derived from amber resins. The solvents contribute a sharp, acrid tone that can be reminiscent of cleaning agents or petroleum products.

Since varnish often contains various solvents, the intensity and specifics of its scent can vary based on its formulation. However, the overarching characteristic is usually one of a potent, solvent-heavy aroma that dissipates as the varnish dries and cures, ultimately becoming less perceptible over time.