Paint spraying is one of the most prevalent application techniques among industrial manufacturers – and it’s not surprising given its versatility.
As a leading supplier of spray painting equipment, perhaps you could call us biased. But here at SFEG, we believe that spraying is the best way to achieve paint perfection – unlike roller brushes which don’t always leave that smooth, even finish you want.
Although the process of spray painting is relatively straightforward, there are various methods currently in use, ranging from air-atomised spray and airless spray to high-volume, low-pressure (HVLP).
Let’s take a look at these different methods and how they work.
Air-atomised spray painting
When it comes to spray painting, this is one of the more conventional approaches, involving the use of a traditional spray gun.
Air is supplied to the spray gun under pressure via a hose. This compressed air then combines with the liquid flow to create a pressurised mist that coats the surface or object.
Conventional spray painting equipment is incredibly flexible. It can be easily adjusted and customised to suit the needs of the operator and is suitable for use on virtually any substrate.
This method of spray painting even allows the operator to control the output of paint, which helps to ensure a smooth finish.
Airless spray painting
This method of spray painting propels paint particles at a slower speed than conventional spray equipment, preventing overspray.
An airless spray pump is used to bring the paint up to a pressure of 250 bar. It’s then hydraulically or pneumatically compressed under high pressure.
Once the paint valve is opened, the paint is forced through the tip of the nozzle and atomisation is created through the pressure difference between the coating materials and the atmosphere.
One of the biggest advantages of this application technique is that it’s fast and provides even coverage on different textures and surfaces.
High-volume, low-pressure (HVLP)
HVLP spray equipment uses spray gun atomisation technology to propel large quantities of low-pressure air to the gun applicator.
Material is fed to the spray gun via a pressurised pressure cup or pressure pot.
The high volume of low-pressure air pushes the paint in the container towards the nozzle and the paint is atomised into fine particles at the nozzle outlet.
The paint particles remain enveloped by the air stream, helping to minimise the spray mist. This process also allows for better coverage and less material loss.
Ready to invest in spray painting equipment?
Choosing a paint application method can be difficult – especially since they all come with their pros and cons.
It helps if you anticipate your needs in detail as some spray painting techniques are better suited to specific materials and projects.
SFEG stocks an impressive range of spray painting equipment at some of the most competitive prices around and we will happily advise you on the most suitable apparatus and parts for your needs.
So, if you’re struggling to choose between an airless spray gun and a conventional sprayer, or you’re undecided on which spray tips and guards will provide the desired finish, feel free to get in touch.
You can either call us on 0161 480 8087 or drop us an email at sales@sfeg.co.uk, and we’ll get back to you with more info as soon as we can.
