Airless plaster coatings are an increasingly popular solution with Professionals contractors for finishing interior walls. Offering a uniform result and rapid application, these coatings are ideal for large-scale projects or worksites where efficiency is essential. Let’s find out more about their characteristics, their benefits and how to use them effectively.

First of all, understand what a plaster is

A plaster is a pasty or powdery material designed to be applied to a surface, usually a wall or ceiling, to improve its appearance, protection or functional properties. It is mainly used to prepare and even out the surface before applying a finish such as paint or wallpaper. Plasters can be based on gypsum, cement or other chemical compounds, and are often enriched with additives to provide specific characteristics, such as better adhesion, increased resistance or insulating properties. Depending on their formulation, plasters can be used to smooth surfaces, mask imperfections, fill cracks or create decorative effects. They are essential in many construction and renovation projects to guarantee an aesthetically and technically optimal result.

Plaster application - AI

So what’s the point of an airless plaster?

An airless plaster is a product specially prepared for application using an airless sprayer. Unlike conventional methods, airless application relies on a high-pressure spray system that projects the material directly onto the surface to be treated, without mixing it with air. This ensures even coverage before smoothing, which is often necessary.

Graco and Wagner machines spraying Bagar airliss G

Advantages of airless coatings

  1. Accelerated yield: Airless application enables large surfaces to be treated quickly, reducing the time spent on site.
  2. Perfect finish: The airless system guarantees an even coat, with no brush or roller marks.
  3. Versatility: Airless plasters can be used for different types of finish, from smoothing walls to repairing cracks.
  4. Reduced waste: The product is sprayed directly onto the surface, limiting splashes and wastage.

Areas of application

Airless plasters are particularly suitable for :

  • Interior walls: For smoothing before painting or a flawless finish.
  • Ceilings: Ideal for large surfaces that are difficult to access with conventional tools.
  • Renovations: Correct imperfections on old surfaces.
  • New projects: Quick application on large, prepared surfaces.

How do I use an airless plaster?

Applying an airless plaster requires a certain amount of know-how to achieve the best results. Here are the main stages:

  1. Surface preparation: Make sure the surface is clean, dry and dust-free.
  2. Choice of equipment: Use an airless sprayer suitable for the chosen plaster (for example, a Graco Mark V for finishing coatings and a Graco Mark VII or X for thick plasters).
  3. Preparing the plaster : Thin slightly (if necessary), following the manufacturer’s recommendations.
  4. Spraying: Apply the plaster in uniform layers, keeping a constant distance between the sprayer and the surface (often between 50 and 60 cm from the surface).
  5. Finishing: Once the coating is dry, sand lightly if necessary for an even smoother finish.

 

Recommended equipment for airless plasters

Several types of equipment can be used to apply airless plasters, including :

Graco APX 8200 (17N353) + Bag squeezer

Graco APX 8200 (17N353) + Bag squeezer

 

 

Safety precautions

  • Wear personal protective equipment (mask, goggles, gloves).
  • Make sure the machine does not suck dry.
  • Use an airless machine with sufficient power for your coating.
  • Clean your equipment immediately after use to avoid the plaster hardening and causing exorbitant repair costs.

 

Airless plasters are an effective, professional solution for achieving an impeccable finish on interior walls, where a smooth finish is often required. Their fast, even application makes them an ideal choice for building projects, whether renovations or new builds. With the right equipment and the right technique, airless plasters meet the highest standards of quality and productivity.

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