Tips & Tricks for airless sprayers

How do I choose the right tip for my project? Do I have to wear a face mask while spraying? Have you already asked yourself these questions when working with paint sprayers? With the following nine tips and tricks, we explain what you should absolutely pay attention to in order to achieve the perfect spraying result.

9 helpful tips

Tip #1 Safety first Wear mask, safety goggles & gloves

Paint spraying is fast and efficient. Nevertheless, when working with a paint sprayer, you must pay attention to the safety instructions. The wearing of personal safety equipment when spraying paint is a legal requirement. We recommend wearing a respiratory mask as well as safety goggles and gloves. Long-sleeved clothing and shoes offer additional protection.

Tip #2 Choose your tip and filter size

With Airless spraying the choice of nozzle size and gun filter are important. The material being used will determine which ones to use. The right choice is crucial for a perfect spray result. The nozzle angle determines the width of the spray jet. The bore diameter of a nozzle controls the paint flow rate. The choice of filter depends on the type of material. Essentially, the more viscous the material, the coarser the filter should be.

Our filters in detail

  • Red Filter 180 mesh and 0.084 mm mesh size (extra fine): The perfect choice for extremely low viscosity materials such as oils, mould release agents and enamels
  • Yellow Filter 180 mesh and 0.14 mm mesh size (fine): Suitable for materials such as fillers and rust-protection paints as well as low-viscosity emulsion and latex paints
  • White Filter 50 mesh and 0.31 mm mesh size (medium): Suitable for use with materials such as latex and emulsion paints, flame retardants, roof coatings, corrosion-proofing products and many more.

Tip #3 Spray test onto cardboard

Before spraying, we recommend carrying out a spray test on a piece of cardboard. If the spray pattern is unsatisfactory, for example due to tailing on the edges, you can adjust the following settings: First, check the pressure setting. An increase in the spray pressure leads to the nozzle being supplied with more material and therefore the spray pattern is more even. The material can also be diluted, since the viscosity is also crucial for the material's spraying properties. The right nozzle size is a further factor that influences the spray pattern. The choice of nozzle depends on the material. The wear of the nozzle also needs to be considered. If necessary, the nozzle should be replaced.

Tip #4 Use tip extension for extra reach

Nozzle extensions make working with Airless paint sprayers more efficient, by increasing the working radius. The nozzle extensions are also useful for accessing hard-to-reach areas. This means that coating radiators, ceilings, door and window frames is made easier. Depending on the project, there are matching extensions between 15 and 60 cm. The use of a nozzle extension often means that the use of ladders or scaffolding can be reduced. The Airless nozzle extensions are compatible with all WAGNER Airless guns and are available with a G or F thread.

Tip #5 Spray corners and edges first before large surfaces

When painting or applying emulsion paints, we recommend first spraying the corners and edges and then the surfaces. This will guarantee the even application of paint. If necessary, you can spray in a cross-coat pattern to achieve better surface coverage.

Tip #6 Start moving before spraying

With airless spraying, paint is applied at high pressure so the right technique is important. To achieve the best possible spray results, the spray gun must be moving before pressing the gun trigger. This applies the paint evenly to the surface without leaving streaks. When finishing the gun trigger should also be release prior to stopping moving the gun.

Tip #7 Spray at constant speed

With airless spraying, it is important to apply the paint at a consistent speed. To avoid paint patches and to achieve an even surface, spraying should take place in either a horizontal or a vertical motion.

Tip #8 Overlap each stroke by 30% for even coverage

Overlap the spray stroke by approx. 30%. This achieves the best possible coverage with a streak-free result.

Tip #9 Spray at an even distance at right angles to the surface

With airless spraying of emulsion paint an even distance of 10 to 25 cm should be maintained between the gun and the object being coated. The gun must also be held at an angle of 90° to the surface. If the distance is too great and the gun is swung, the spray jet widens. This can lead to the spray pattern fading and creates more overspray. If the distance is too small, the paint is applied at too high a concentration leading to drips. You should therefore try and maintain an even distance and angle along the entire object in order to achieve a even thickness of paint application.

Our airless accessories at a glance

HEA ProTip - Nozzle

HEA ProTip - Nozzle

Airless nozzle extensions (less than 1 m)

Airless nozzle extensions (less than 1 m)

Extra-fine filter insert (red)

Extra-fine filter insert (red)

Fine filter insert (yellow)

Fine filter insert (yellow)

Medium filter insert (white)

Medium filter insert (white)

Comfort (clear glass)

Comfort (clear glass)

Comfort (contrast-enhancing glass)

Comfort (contrast-enhancing glass)

Comfort (sunglasses)

Comfort (sunglasses)

OverGlasses - The smart pull-over solution

OverGlasses - The smart pull-over solution

AntiFog - The world's lightest full-vision protective goggles

AntiFog - The world's lightest full-vision protective goggles

Vector Infinity - THE PREMIUM Airless gun

Vector Infinity - THE PREMIUM Airless gun

Vector Grip - THE advanced Airless gun

Vector Grip - THE advanced Airless gun

Vector Pro - Airless gun for professionals

Vector Pro - Airless gun for professionals

AG 14: The gun for high-viscosity work

AG 14: The gun for high-viscosity work

AG 19: THE ergonomic gun for airless spray filler

AG 19: THE ergonomic gun for airless spray filler