Droogolie

Droogolie is a term used to describe a type of oil that dries or oxidizes when exposed to air, forming a hard, protective film. This process is known as polymerization or cross-linking. These oils are typically unsaturated, meaning they contain double or triple bonds in their fatty acid chains, which are reactive sites for oxidation. Common examples of droogolie include linseed oil, tung oil, and walnut oil.

Historically, droogolies have been widely used as binding agents in paints, varnishes, and wood finishes. Their ability to form a durable, waterproof layer made them ideal for protecting surfaces and providing a glossy finish. In the context of art, they are also used in oil paints to create a binder that allows pigments to be suspended and applied to a canvas. The drying time of droogolie can vary depending on factors such as temperature, humidity, and the presence of driers, which are additives that accelerate the oxidation process. While synthetic alternatives are now common, natural droogolies remain valued for their traditional properties and aesthetic qualities in certain applications.