The two-component, externally-mixed, walk-behind road line marker is a portable machine designed for painting high-performance, long-lasting road lines. It is mainly used with special two-component (A+B) cold-plastic coatings and uses advanced external mixing technology. This type of machine is especially good for small to medium projects, parking lots, residential roads, factory areas, crosswalks, arrows, symbols, and other jobs requiring precise work or complex patterns.