Atomisation of Paint
Paint is atomised by high pressure, high volume air bombarding paint coming out of fluid tip, which breaks it up into cloudy spray pattern. A solid coat of material is achieved by overcoating several times in various directions.
Atomisation of Paint
Paint is atomised by high volume low pressure (approx. 6psi) air bombarding the paint being delivered through the spray gun fluid tip.
How airless spray finishing works
Material is drawn into the pump under suction, then hydraulically or pneumatically compressed under high pressure by means of double acting pump or diaphragm unit from 0-5600psi depending on the pump specification. The material is then forced through the tip of a spray nozzle of a size between 9 and 55 thou, dependent on material being applied, which creates the atomised spray pattern.
How Air Assisted Airless works
This is a combination of airless and airspray. Atomisation is created by using 50-70% of the normal airless pressure required to create material atomisation. With this amount of airless pressure the spray pattern will have tram lines bottom and top. This is known as tailing. By introducing a small amount of air (25-30psi) to the paint alongside the spray tip the tramlines are eliminated and a fully atomised spray pattern is achieved.
All previously described spray finishing systems are available in electrostatic versions.
How electrostatic works
The material to be applied is charged with a negative charge up to 90KVA. When the material is sprayed from the gun it goes for the closest earth which is the workpiece. The charge in the paint causes a large percentage of the paint to be attracted to the edges and rear of the workpiece.
This equipment is available in airspray, airless or air assisted airless forms.
How plural component works
The base and activator are pumped to a mier manifold or plural compenent spray gun separately. They are then mixed and applied immediately to the workpiece via the spray nozzle.
This allows less thinners to be used to achieve a spraying viscosity. Higher film builds or materials to be applied. Faster drying time.