Paint Application

Application- Brush
Brushing is the most common method for applying coatings. While brushing is a slow procedure many small jobs do not warrant the use of any other application method. Brushing is especially useful for touch up work, spot priming, work in confined areas or where spraying is impossible. Less paint is wasted when applied by brush than by any other method.

Application - Roller
Rollers are efficient tools for applying industrial coatings and are suited for broad flat surfaces. The general rule for selecting a roller cover is 'the smoother the surface the shorter the nap'.

Application- Spray
The easiest and most rapid method for the application of protective coatings to large areas is spraying. Spray application is preferred where a smooth uniform finish is desired and speed of production is important. Conventional air atomization is used when quality of finish is of utmost importance or where great versatility is desired. Airless spray is best for large scale operations not requiring very fine finish.

Air Spray Application
A conventional air spray gun is a precision tool which uses compressed air to atomize sprayable materials. Air and paint enter the gun through separate passages and are mixed and ejected at the air nozzle to provide a controlled spray pattern. The amount of paint leaving the gun is controlled by the pressure on the fluid container, the viscosity of the paint, the size of the fluid orifice, and by the fluid needle adjustment.

Airless Spray Application
Airless spray is a method of application which does not directly use compressed air to atomize the coating sprayed. Hydraulic pressure is used to atomize the fluid by pumping it at high pressures (500-3500 p.s.i.) through a small precision orifice in a spray nozzle. As the fluid is released at these high pressures, it is separated into small droplets resulting in a finely atomized spray.