Tips for Selecting An HVLP Spray Gun

The face of the automotive refinishing industry has changed considerably in the past decade, and the Environmental Protection Agency (EPA) has gone to great lengths to moderate emissions and material use. The advent of high-pressure, low-volume (HVLP) spray guns has helped encourage a reduction in harmful polyisocyanate vapors without compromising paint finishes. In addition, HVLP spray guns give paint-spraying technicians a greater degree of control to eliminate issues such as excessive spraying and waste.

Instructions

Consider the Job

1

It is important to think about the type of job that will require the use of an HVLP spray gun. Some workshop materials, such as high-build primers, have too high of a viscosity to work with the spray guns. However, a high-quality HVLP model should be capable of spraying in the latest water-based and two-pack acrylic systems.

2

Before rushing into a purchase, considering buying more than one spray gun. Different materials require different setups and it is impossible to change fluid tips and needles on a gun and establish the correct level of material flow. Most paint-spraying technicians use one gun for water-based colors, a second gun for solvent-based colors and a final gun for clear coat applications.

3

Although there are many different HVLP spray guns on the market, there only are a few brands that specialize in producing models for the automotive market. Operators tend to have a preference for individual models based on the grip provided, weight and the amount of control the gun gives when applying material to vehicle.A range of catalogues are available from most automotive tool supply centers.

4

Many spray-paint technicians also base their decision on whether the tool is suction-fed or gravity-fed. Suction-fed guns can hold more material and often are preferred for use on commercial vehicles. Gravity-fed guns are easier to manipulate and are better for detailing work. Most gravity-fed spray guns are mass produced because they produce less material waste.

5

After buying an HVLP gun, it might be necessary to grab additional items such as air caps, paint preparation systems and cleaning materials. Spray guns are engineered for precision and even the smallest clog can cause problems with applications. By regularly maintaining the guns, their potential lifespan can be increased and work quality remain at high levels.