External mixing principle

The external mixing principle is a fundamental concept in painting technology that is used when dosing and mixing paints and coating materials. In contrast to the internal mixing principle, in which the components are mixed inside the spray gun, the external mixing principle involves mixing outside the gun before the material is applied to the surface to be painted.

With this technique, the individual components of the paint, such as the basecoat and hardener, are kept separately in special containers. Before they enter the spray gun, these components are mixed together by a mixing system outside the gun. This can be done by various methods, such as using a mixing cup or a mixing head.

The advantage of the external mixing principle lies in the precise dosing and uniform mixing of the paint components before they are applied to the surface. This ensures a consistent paint finish that minimizes color deviations and other irregularities.

This technology is used in various areas of painting technology, particularly in the automotive industry and industrial painting, where high-quality painting results are required. By using the external mixing principle, painters can work efficiently and achieve a first-class surface quality at the same time.