Modern construction and interior finishing increasingly rely on solutions that combine precision, speed and aesthetics. One of the tools that has gained enormous popularity among professionals in recent years is the spray gun for plasters. Thanks to it, it is possible to evenly and quickly cover wall surfaces, both indoors and on facades. Unlike traditional manual plastering techniques, spraying makes it possible not only to achieve a top-level visual effect, but also to significantly shorten working time and reduce material consumption.
In this article, we will take a closer look at what exactly a spray gun for plasters is, how it works, what it is used for, and what to pay attention to when choosing one. We will also answer frequently asked questions and show why modern spraying systems – such as those offered by Murrami – are gaining recognition among professionals and contractors.
What is a spray gun for plasters?
A spray gun is a tool used for applying plasters, decorative paints and other compounds of a consistency that allows them to be spread using pressurized air. Although at first glance it may resemble a standard paint gun, its design is adapted to work with much denser materials. The key elements of each such device are the container for the material, the compressed air system, flow control valves and interchangeable nozzles that allow adjustment of the width and intensity of the spray.
Depending on the type and intended use, spray guns can vary in construction – from simple hand models to advanced pneumatic systems working with high-capacity compressors. An example of high-end equipment is the Murrami Standard 1 – a compact yet highly efficient system that successfully handles plasters, spray wallpapers and fillers, both on interior walls and building facades.
What is a spray gun for spray plasters used for?
The main application of a spray gun is fast and even application of different types of plaster. The most common materials include structural, silicone, lime-cement plasters, as well as the popular “lamb” finish. These devices are used both in interior finishing – where aesthetics and precision are crucial – and in facade work, where speed and durability matter.
Spraying is also suitable for applying ready-to-use decorative masses, spray wallpapers or fillers, making the gun a highly versatile tool. This technology allows coating even hard-to-reach areas, corners and architectural details without the risk of streaks or drips. Even material distribution translates not only into better visual results but also into greater durability and surface resistance.
Spraying systems such as Murrami Standard 1 are designed with professionals in mind – their advantages include not only effective application but also ergonomics. A long hose and comfortable grip allow work in various positions without fatigue or frequent breaks.
How to choose the right spray gun for plaster?
Choosing the right spray gun should not be random. Several key technical parameters should be considered, as they affect both work comfort and final quality. Among the most important is working pressure – typically ranging from 1.8 to 2.4 bar, sufficient for most materials. Air consumption is also crucial – some models require up to 250 liters per minute, which means they need to work with the right compressor.
Tank capacity should also match the job type – for larger surfaces, a 3-liter tank is more practical, while smaller, lighter models are better for detailed finishes. The number and type of nozzles are also worth attention – interchangeable tips allow adjusting spray width to the plaster type.
Murrami spray systems – modernity serving precision
Among the solutions available on the market for spray application of plasters and decorative coatings, Murrami systems stand out for their build quality, stable performance and advanced application technology. Designed with professionals in mind, they perform perfectly both in interior finishing and facade works, where even coverage, efficiency and material savings are key.
The Murrami Standard 1 model is a compact yet extremely versatile device that combines features of traditional sprayers with modern pumping systems. A key role is played by the efficient piston compressor that generates constant, sufficiently high working pressure – essential for precise distribution of plaster, paint or filler. The device also handles dense decorative structures efficiently, making it highly universal.
Ergonomics are another advantage – the spray gun supplied with the sprayer ensures a secure grip and user comfort even during prolonged work. The flexible rubber hose minimizes bending risk and increases freedom of movement, directly improving application quality. This allows the operator to focus entirely on even coverage without constant corrections.
Murrami sprayers work well both for small-scale renovations – in apartments or service premises – and for large areas in commercial construction. Their mobility, simple operation and easy maintenance make them a popular choice among companies specializing in professional interior and facade finishing. High efficiency reduces project time while lowering material costs.
Using Murrami systems in daily construction practice delivers tangible benefits – not only in visual quality but also economically. It is a solution that helps overcome environmental challenges, speeds up project completion and ensures consistent finishes even on varied surfaces.
How to use a spray gun correctly?
Although operating a spray gun is not complicated, proper device preparation and correct application technique greatly affect the result. The key to success is material preparation – the plaster mix must have a consistency suited to nozzle diameter and compressor power. Too thick a mix may clog the nozzle and cause uneven distribution, while too thin will lead to splatters and drips.
The operator should avoid typical wrist movements – instead, the gun should be guided with the entire arm, kept at a steady distance from the surface. Each pass should be smooth and consistent, without stopping in one place, which could cause excess material and texture defects.
Proper starting and finishing of each pass also matter – a slight wrist bend at the beginning and end helps avoid overlaps and unsightly streaks. Pressure control is equally important – too high may cause overspray, while too low may result in “spitting” and clumps.
After finishing, cleaning the equipment is essential. Even top-quality devices like Murrami spray guns require regular rinsing of nozzles, hoses and tanks. Leaving material residues can clog and permanently damage components. Regular maintenance extends the device’s life and ensures reliable performance in future projects.
The most common mistakes in spray plastering
Although spraying technology simplifies and speeds up plaster, paint and decorative mass application, improper use may cause serious issues. Most mistakes stem from insufficient operator preparation, wrong parameter settings or poor equipment condition.
One fundamental error is using the wrong material consistency. Too thick a mix, especially with low pressure, can cause the gun to “spit” or spread unevenly. Too diluted plaster will not adhere properly, creating drips and requiring corrections. It is also important to match materials to the device’s capabilities – plasters with large aggregate fractions or heavy compounds may require special wear-resistant nozzles and higher air flow.
Mismatched nozzles are another frequent issue. Using too small a nozzle for dense material risks clogging and device overload. For decorative plasters with fine aggregate or structural paints, precise selection of both the nozzle and air flow settings is crucial.
Application technique mistakes are also common – pausing in one spot, uneven spraying speed, spraying from too far away, or wrist movements instead of arm movements lead to drips, texture breaks or visible bands. Though seemingly minor, these errors can ruin the decorative effect.
Neglecting equipment cleaning is another major mistake. Leaving residues in hoses, nozzles or valves causes hardening, which may permanently damage the system. Even the best spray gun will quickly lose function and precision if not maintained.
Choose Murrami – rely on professionalism and quality
If you are looking for a reliable system for spray application of plasters, structural paints and decorative masses – choose Murrami solutions. Our devices are designed for professionals who value precision, speed and ease of use. The Murrami Standard 1 is just one example of technology that combines compressor performance with exceptional application accuracy – whether you are working on a facade or in a demanding interior.
In our offer, you will find not only reliable sprayers but also a wide range of spray plasters, decorative masses and structural paints that work seamlessly with our devices. This allows you to create a complete, compatible solution – from machine to finishing detail.
Trust a brand that understands contractors’ needs. Murrami is not just equipment – it is your partner at work. Choose quality that pays off and results that impress at first glance.
Contact us or visit our website and see how much you can gain by choosing Murrami spraying systems.