Natural oil paint is paint where the binding agent, or resin, is a natural oil, such as linseed oil, poppy seed oil, or walnut oil. Unlike paints that use synthetic resins, natural oil paints rely on these naturally occurring oils to bind the pigment particles together and create a durable, long-lasting paint film.
Understanding the Composition
The key characteristic of natural oil paint lies in its binder. The provided reference explains this directly: "Natural oil paints are those in which the resin is natural oil." This means the oil itself acts as the glue holding the pigment and creating the paint's consistency. This contrasts with synthetic paints which might use acrylics, alkyds, or other artificial resins.
The natural oils used in these paints undergo a process of oxidation and polymerization after application. This process allows the paint film to harden and cure over time, developing a characteristic toughness and durability.
Advantages of Natural Oil Paints
- Rich Color: Natural oil paints often offer a deeper, more luminous color compared to some synthetic paints.
- Durability: When properly applied and cared for, they can last for centuries.
- Workability: Many artists prefer the way natural oil paints handle and blend. Their long open time allows for more blending and detailed work.
Types of Natural Oils Used
Several natural oils are commonly used in oil paints, each offering slightly different properties:
- Linseed Oil: A popular choice, known for its durability and relatively fast drying time.
- Poppy Seed Oil: Offers a softer, more delicate film, ideal for subtle colors and details.
- Walnut Oil: Provides a balance between durability and a softer, less yellowing finish.
