What is a HVLP spray gun?

HVLP spray gunHVLP stands for high volume low pressure spray guns. HVLP spray guns are widely preferred by painters for refinishing their work.

It is also used by professional painters for making the best out of their paintings as these guns can be very useful in detailing jobs and precise work.

There are various benefits of using a HVLP spray gun but at the same time it has various drawbacks too.

Today we are going to discuss about everything a person should know about HVLP spray gun. So let’s get started:

An HVLP spray gun is suitable for both outdoor and indoor painting works as it provides efficient coverage and produces less noise. In comparison to the other airless sprayers it stands out much more as it can be used for exterior as well as interior painting where as the other sprayers are only suitable for outdoor painting.

The other benefit of HVLP spray gun is that it accumulates less over spray and gives excellent coverage to the painted surface.

There are various parameters that are used to judge the efficiency of any paint-sprayer gun. In order to study information about HVLP spray gun we need to know all these parameters and how well the HVLP spray gun works in context to these. The various parameters are:

Principle of operation

HVLP spray guns are said to be the modifications of conventional spray guns. The main working of the HVLP spray gun depends on the air compressor as it atomises the paint for spray at high volume and low pressure as desired.


There are some units of HVLP spray guns which use turbines instead of air compressors for facilitating atomisation. And if talk about airless sprayer they use pistons instead of compressor or turbine to spray the paint at high pressure and that is what makes the main difference between airless sprayers and HVLP spray guns that is airless sprayers spray paint at high pressure where as HVLP spray guns spray paint at low pressure and high volume.

Material Viscosity

Material ViscosityYou guys might know this that before applying some paints we need to thin them for better quality and coverage. And same needs to be done for HVLP spray guns. When a painter works with HVLP spray gun he/she needs to thin the paint as the pressure of the HVLP spray gun is low and when it comes to airless sprayer you don’t need to thin the paint for these sprayers as they spray paint at high pressure. Thick paints such as latex or enamel require thinning with the help of mineral spirits or thinners.

Production

HVLP spray guns have been famous for so long for their fine production. Other spray guns are preferred because of their high production unlike HVLP spray guns. HVLP spray guns work for quality not for quantity and that is the reason it is preferred by professional painters for their expensive and great quality paintings.

The transfer rate of paint of a HVLP spray gun is about 80-90% without any wastage or overspray where as airless sprayers only offer 50 % of transfer rate of paint. Even the PSI for HVLP spray guns is very lower than other airless sprayers where wireless sprayers give 2000 psi of pressure; HVLP spray guns give 10 Psi per nozzle.

The presence of air compressors helps in providing a better and smooth coverage. People prefer HVLP paints more for detailing and minor jobs rather than outdoor or huge painting jobs.

Cost

Cost ReductionHVLP spray guns are expensive as compared to any other paint sprayer or to its turbine unit one. HVLP spray guns are used for touch up and detailing of expensive paintings and is master of less overspray due to which it has a costly price than any other sprayer.

The fine quality of production and coverage it offers makes it expensive to own. But you can save money on this spray gun if you have your own turbine or compressor with you, you can combine your compressor with HVLP spray gun and make it less expensive.

Suitability

We have been reading this for so long that the HVLP spray gun provides less over spray and gives a better coverage with less wastage of paint. It is preferred for expensive paintings as it can help in saving the wastage of the expensive paints being used in the paintings.

HVLP spray guns are also width used for jobs like detailing or touch ups or maybe for precise jobs like furniture painting or fixtures with carvings etc.

Performance

A HVLP spray gun with compressor helps in getting the best quality coverage and fine quality of paintings. But the best part of these guns is that with the air compressor you can achieve any pressure you desire of.

People use HVLP spray guns especially when they are aiming to achieve a fine spray. This was about the air compressors but when we talk of the turbine units of HVLP spray guns we should know that they are portable and can be carried anywhere along and the hot air produced by the sprayer helps in drying the paint faster than usual which means that there will be no choking issues in the paint gun hose.
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The only issue with HVLP spray guns is that they don’t work with thick paints and require thinned paints for spraying. Due to presence of air compressor and turbine there is very less or minimal production of noise from the HVLP spray gun whereas due to presence of piston for spraying paint in an airless sprayers makes it noises.

Precautions

When dealing with paints you need to keep in mind that they are made from harsh chemicals which can cause damage to the persons eyes or any other body part if gets in contact.

To avoid any mishap or any other injury a person should ensure that he takes all the precautions mentioned in the label of the pack of paint as advised by the manufacturers. And one more thing he needs to follow is wearing of proper protective gear to avoid any contact of paint to any sensitive body part.

Protective gears like safety goggles, rubber gloves, protective shoes and a face mask should be worn to avoid any injury as safety is the priority for every individual.

Disadvantages of HVLP spray guns

Disadvantages of HVLP spray gunsThere are various cons of HVLP spray guns too as everything comes with pros and cons. The various disadvantages of HVLP spray guns are:

  1. Thick paints cannot be used in HVLP spray guns as they require thinner paints for better spray quality at low pressure.
  2. Expensive– The HVLP spray guns are expensive than any other spray gun present as they provide the fine quality coverage.

So this was everything and anything you should know about HVLP spray guns before using them. These guns are being preferred by people who aim expensive painting and fine quality coverage.

We hope you like the article and for any comment and query against this article please contact us through the comment section below.
Read more: How to use a Paint Sprayer?

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