What is airless?

In contrast to spraying with compressed air, the airless atomisation is created solely by material pressure without air. An electrically or pneumatically pump or petrol engine places the material under pressure and forces a defined amount of material at a maximum pressure of 250 bar through a nozzle bore. This transforms the material into a spray.

How does airless spraying work?

  1. A pump is used to bring the paint material, depending on the application, to a pressure of up to 500 bar and the transport it to the gun.
  2. When the paint valve (gun) is opened, the paint is forced through an opening in the airless nozzle which is ground to the relevant requirements. Atomisation is created through the pressure differential between the coating material and the atmosphere.
  3. The flow rate and spray jet width are determined by the nozzle.

What materials are suitable for airless?

Various materials can be sprayed using airless devices. We have put together a summary of them here:

  1. Water and solvent-based varnishes, lacquer paints, oils, separating agents
  2. Synthetic resin-based paints, PVC paints, 2-K lacquers
  3. Primers, fillers
  4. Fireproofing paints, corrosion protection paints
  5. Dispersion, latex paints, adhesives, sealants
  6. Façade paint, roof linings, floor coatings, silicon resin paint

What areas of application are there for airless?

Airless spraying is suitable for all kinds of areas. Whether it be indoors or out, paint and material can be applied to the following objects, for example:

  1. Radiators
  2. Doors and windows
  3. Walls and ceilings
  4. Wood and steel constructions
  5. Façades
  6. Brickwork seals
  7. Roof linings
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What is the difference between a paint roller/brush & paint spray system?

Paint roller

Paint roller

+ Quick cleaning
− Paint application takes longer
− Transporting materials is hard work
− Multiple climbs onto scaffolding are required
− Repeated material transport for large areas
− Masking is also required
− Low and uneven covering capacity on a red surface
− Multiple rollering is required on a red surface

Paint spray system

Paint spray system

− Cleaning takes longer
+ Paint application is faster
+ Material remains on the ground
+ One-off climb with the gun onto the scaffolding
+ No material transport thanks to aspiration
+ No added work for masking
+ Good and even covering capacity on red surfaces
+ Coverage even on textured surfaces

For whom and what is airless spraying suitable?

The airless spraying method from WAGNER can be used anywhere, whenever paint and dispersion work needs to be carried out regularly and in high volumes. Thanks to the new HEA technology, perfect spraying results can easily be achieved not just by experienced decorators, but also by people using it for the first time.

Airless for DIY enthusiasts

DIY enthusiasts

Ideal areas for the use of airless spraying include typical projects for DIY enthusiasts, such as a complete interior design or home renovations in which all kinds of objects such as walls and ceilings, doors, frames, furniture, beams, radiators, railings, steel supports, window sills or car ports are coated.

Contractors

Craftsmen, caretakers & carpenters

Airless technology has a broad spectrum of applications for projects by craftsmen, caretakers and services that take care of hotels, residential properties and schools, for example. Reliable, fast and versatile, airless technology is always willing to help whenever traces of wear and tear or graffiti need to be removed from wall surfaces and staircases, or when extensive fences or large surfaces such as a series of garage doors need to be sprayed quickly and effectively.

Industry

Industrial companies

WAGNER is one of the world's leading suppliers of industrial surface technology systems and components with extensive experience in a wide range of sectors. Whether you are looking for complete systems or individual components – we have the perfect solution whatever your area of application.