Air Atomising Spray Guns - Explained

The spray gun is the key component in a finishing system and is a precision engineered and manufactured instrument.

Each gun type and size is specifically designed to perform a certain, defined range of tasks.


As in most other areas of finishing work, having the right tool for the job goes a long way
toward getting professional results.

A thorough understanding of the differences between systems will allow you to select the right gun, to use it properly to produce a high quality finish and to contribute toward a profitable
finishing operation.

1. What is Transfer Efficiency?

This is a measure of how much paint sprayed by the gun actually reaches and lands on the surface being coated.

To accurately measure this efficiency requires specialised equipment in a laboratory and so the test cannot be easily carried out in a customers spray shop.

The test method usually ignores the quantity of VOC (Volatile Organic Compound) in the coating and is based upon its Solids Content.
This is because a large percentage of the VOC will evaporate between the gun and object and otherwise give misleading results.

2. What is an Air Atomising spray gun?

An air atomising spray gun is a tool which uses compressed air to atomise paint, or other sprayable material, and to apply it to a surface.

Air and material enter the gun through separate passages and are mixed at the air cap in a controlled pattern.

3. What is a Conventional Air Atomising Gun?

This is the standard type of gun that has been available for many years.

It uses high velocity air jets to break up the paint. A high quality atomisation and finish normally results.

However, the high air speed also results in a high bounce-back and a relatively
low transfer efficiency.

 
 
 

 

DeVilbiss GFG Pro Gravity Spray Gun

The "full size" Conventional gravity spray gun

The DeVilbiss GFG Pro Gravity is a high performance conventional air atomising spray gun suitable for most industrial spray finishing applications and is made of the best available materials to withstand the highest demands in the modern sprayshop, to provide a guaranteed, long and durable working life. The spray gun can be used with virtually all industrial solvent and water based paints, coatings, lubricants, dyes, stains, varnishes, lacquers and adhesives.

  • Renowned DeVilbiss Atomisation Quality
  • Genuine fast application rates
  • Forged aluminium gun body for long life service
  • Light smooth trigger action to reduce operator fatigue
  • Balanced air valve design to improve air flow characteristics.


 
 
 

DeVilbiss JGA Pro Spray Gun Range

The Full Size Conventional Spray Gun From DeVilbiss.

DeVilbiss JGA Pro range of conventional spray guns have established themselves as firm favourites with sprayers all over the world.

The DeVilbiss JGA Pro Pressure and Suction are high performance conventional air atomising spray guns suitable for most industrial spray finishing applications and are made of the best available materials to withstand the highest demands in the modern sprayshop, to provide a guaranteed, long and durable working life.

The spray guns can be used with virtually all industrial solvent and water based paints, coatings, lubricants, dyes, stains, varnishes, lacquers and adhesives.

  • Renowned DeVilbiss Atomisation Quality
  • Genuine fast application rates
  • Forged aluminium gun body for long life service
  • Light smooth trigger action to reduce operator fatigue
  • Balanced air valve design to improve air flow characteristics.

The Finishing World’s favourite spray gun’s just got better with the introduction of the JGA PRO range.

Over many years the DeVilbiss JGA range of conventional spray guns have established themselves as firm favourites with sprayers all over the world. As part of DeVilbiss’s continued commitment to be the world leader in spray gun technology, these iconic spray guns have been completely re-designed and engineered with new gun bodies, air caps, tips, triggers and air valves. These significant product developments once again provide these guns with unrivalled finishing performance.