Airless spraying method

What is the airless method?

The airless paint spraying process is an advanced technique for coating surfaces, in which the material to be processed is conveyed through a pump (such as a piston or diaphragm pump) under high pressure. This material is then transported through a high-pressure hose to the airless gun and finally to the airless nozzle, where it is finely atomised. Since no additional air is needed for atomisation, this is referred to as an "airless" (without air) spraying process.

Suitable materials for the airless spray process

A wide variety of materials can be processed using airless paint sprayers, depending on the performance of the respective device. Typical materials that can be applied using this method include:

• Aqueous or solvent-based 1K and 2K paints
• Primers and undercoats
• stains and fillers
• Interior and exterior emulsion paints such as facade paints
• latex paints
• corrosion protection agents
• Airless spray putty and roof coating materials

Structure of airless paint sprayers

Airless paint sprayers can be driven pneumatically, electrically or by a combustion engine. The basic system consists of a pump, a high-pressure hose, an airless spray gun and a nozzle. The pressure, which is built up by a piston or a membrane, draws the material out of a container and transports it through the hose to the nozzle, where it is finely atomised.

Advantages of the airless spraying method

The airless spraying method offers numerous advantages that make it superior to conventional methods such as the use of rollers and brushes:

• High area coverage and time savings: With the airless method, large areas can be processed in a short time, which leads to a significant reduction in labour time and personnel costs.
• Perfect, even surfaces: spraying ensures an even layer thickness, which leads to high covering power and optimal surface quality.
• Efficient construction site logistics: Thanks to the well-thought-out positioning of the pump and the appropriate hose length, the tiresome task of lugging buckets around is often no longer necessary.
• High layer thicknesses in a single operation: This not only saves time, but also ensures excellent coverage and protection of the surface.

Disadvantages of the airless spraying method

Despite the many advantages, there are also some aspects that should be considered when using the airless method:

• Spray mist (overspray): This can be reduced to a minimum by perfectly adjusting the system (operating pressure, nozzle, material). An experienced user can minimise the masking effort, but this effort should be included in the overall calculation.
• Commissioning and cleaning: Setting up and cleaning the device requires additional time and care.

Our product range

We offer a comprehensive selection of airless paint sprayers from leading manufacturers such as Graco, Binks, SATA, Wiwa and Kremlin. These renowned brands stand for quality and reliability and are ideal for a wide range of applications and materials. Whether you are planning a small project or a large-scale coating job, you will find the right airless sprayer for your requirements in our range.

Visit our website or contact us directly to learn more about our products and to find the ideal device for your project.