Coating 300 m² with Airless in Two Hours: Mission Impossible?

Think it’s unrealistic to coat 300 m² of plasterboard in just two hours? Think again! With Airless technology, Beissier experts take on the challenge and demonstrate, in a video, how they successfully coat such a large surface in record time.

Coating Without Smoothing

Applying a coating quickly while maintaining a high-quality finish? It’s possible. The Beissier experts took on this challenge in a 120 m² house under renovation, where they had to coat 300 m² of plaster in just two hours—without smoothing.

To achieve this, two coating specialists were enlisted. Equipped with an Airless machine with a minimum flow rate of 3 litres per minute, they selected Bagar Airliss F, a ready-to-use, two-in-one finishing paste designed for Airless application. This product allows for application up to 1 mm thick and does not require a primer, eliminating an entire step and significantly reducing the time required.

For optimal spraying results, Beissier experts recommend using special Airless machine nozzles starting from 5.25. Here, the number 5 indicates a 50° spray angle, while 25 represents the nozzle diameter (in thousandths of an inch).

Steps for Airless Coating Application

With the equipment ready, it’s time to get to work! Surface preparation is crucial before coating begins:

• Sanded and well-finished joint tapes,
• A flawless substrate,
• Protection of all non-coated areas (beams, floors, joinery, etc.) to prevent splashes.

Once the preparation is complete, the surface is ready for coating. With Airless technology and Bagar Airliss F, application is fast, completed in a single pass, and requires no smoothing. By working as a team, the Beissier experts further optimize efficiency—one operates the sprayer while the other refills the machine.

Pro Tips for Efficient Application

• Use a quick hand movement during spraying to avoid overloading corners and prevent drips.
• Start with the ceilings to avoid products falling onto the walls.
• Work methodically, starting from the back of the room towards the machine, ensuring the Airless hose does not touch freshly coated walls.
• Apply in two crisscrossed passes for the best finish.

Mission Accomplished: 300 m² Coated in Two Hours!

In just two hours, the Beissier experts successfully completed their mission, coating 300 m² with precision and efficiency. The final steps? Cleaning the Airless machine and, for an even smoother finish, lightly sanding the surface after drying.