What is HVLP Paint Sprayer ?
HVLP Paint Sprayers are a new generation in this industry, just like electrical locomotives in the railway engineering. It’s a whole new concept with an entirely new set of principals and procedures to operate.
HVLP stands for ( High Volume – Low Pressure ): A higher volume (HV) of air is used to aerosolize and propel the paint at lower air pressure (LP) >< in complete contrast to conventional paint sprayers which use High Air Pressure to operate.
To get an idea of the divergence between the two types look at the following data:
- Operating Pressure of Traditional turbines: 45- 60 Psi (pounds per square inch)
- Operating Pressure of HVLP turbines: 3-8 Psi
>>> Therefore these new innovative models of sprays work with a gentle flow of paint making the job of laying the paint easier, safer and smoother. This means quality painting with less overspray and increasing the efficiency up to 85%. The finished work is so refined that it equals professional spray finish with much more expensive equipment. Finally HVLP sprayers are known as safe and clean technology bearing in mind that in the US in some industries the old traditional spray systems have been banned all together.
Basically a spray gun atomizes the paint solution (primer, sealer, paint) in to tiny particles and applies them on the surface under paint. The quality of any spry gun is analyzed by the way it does this. The finer the particles and the smoother the spray ejection the better the finish. HVLP system uses an innovative method to do this. In contrast to traditional spray guns which blast the atomized paint on the surface wasting a high percentage of paint (as much as 70%) the HVLP system increases the transfer efficiency which means that most of the paint is actually applied on the surface. Here the air is delivered at much higher volume, but with a much lower pressure, this high volume siphons the paint into the gun so that more of the paint ends up on the surface.
Why buy this product ?
The answer to this question is clear and straight forward. The conventional spray system wastes nearly 70% of your paint. The whole reason why HVLP system is developed is efficiency. This has two benefits; first its environment- friendly and secondly it saves you money.
Since this sprayer causes much less overspray and splash back (because it uses low pressure air) it is ideal for painting objects which need precision and quality finish such as shelves, doors and furniture.
This paint sprayer :
- Ideal to paint detailed pieces of work.
- Ideal for interior painting such as, household furniture, decorations, bathrooms, kitchen renovations.
To sum up all the Pros & Cons the following chart gives you a clear picture:
Principals and Key points governing this new system are as follow:
If you have decided to use HVLP spray and benefit from its higher quality performance there are 2 ways to get started.
- Option A: Purchase a brand new HVLP system which consists of Turbine, Spray gun and the Hose. (The turbine is manufactured for this technology producing high-volume air but at a low pressure).
- Option B: If you already have a compressor and you want to adapt your system you must purchase a conversion gun. The role of this device is to convert the high air pressure coming from the compressor to a lower pressure with a higher volume.
- Note: You would need a strong compressor of at least 3 horsepower with a 20-gallon tank. Also you would need a filter to absorb the water and oil coming from the tank.
You should know the type of finish you want. Paint finishes are divided into 3 distinctive types; thin (for clearing stains), Thick (oil paints with diluted latex), Thickest (oil paints and fillers without diluted latex). Usually on the packaging of the gun the kind of finish it is capable of is printed.
Every part of this system has a function which can not be replaced. Therefore make sure you purchase a complete set which includes; turbine, hose and the spry gun. The turbine is actually a high speed fan something like a vacuum cleaner. Different turbines have different number of fans or stages; the more fans installed on the moving shaft of the turbine the higher air pressure in the spray gun. For example one or two fan turbines are suitable for thin paint finishes.
Note: As the HVLP turbine works it produces warm air therefore take note to use a slower effecting thinner.
***New Product: Wagner 0529029 Flexio 990 Direct Feed Sprayer
Some of its highlight features are as follow:
- It draws the paint straight from the container. This saves a great deal of time especially if you have sizable projects at hand. For a contractor this means faster painting for a longer period of time. It is capable of painting up to 9 GPH ( Gallons per Hour) with an extended hose.
- The turbine used is of the X-Boost model increasing the speed but at the same time very little overspray.
- As this HVLP spray is tailor made to cover larger painting areas it is provided with a long hose in order to cover a two story building.
- Two other features of Flexio 990 are its user friendly mechanism; finger-touch set up and automatic cleaning.
Top 3 Best HVLP Paint Sprayer I Recommend to You
- >> Wagner 0518080 Control Spray Max HVLP Sprayer
- >> Wagner 0529021 Flexio 890 HVLP Paint Sprayer Station
- >> Fuji 2202 Semi-PRO 2 HVLP Spray System
#1. Wagner 0518080 Control Spray Max HVLP Sprayer
- Long (20 foot) air hose. With this length you are able to paint every corner of the room.
- It has two air filters. These filters guarantee the quality of the finished job and protect the spray gun from dust or other residues which might ruin the finish.
- This sprayer is made of separable parts making the job of cleaning and maintenance easier.
- Light weight and easy to move around.
First we must be clear about what to expect from this spray. It is a spray made for small projects mainly indoors. For this purpose in my view although it is little expensive, it’s a cutting edge spray in its rank. The strong two stage turbine and the 20 feet hose is a big plus. You must have in mind that it is not a suitable spray for thicker materials and vertical paintings.
Things We Liked Things We Didn't Like
Things We Liked
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#2. Wagner Flexio 890
- Two containers are provided, one for precise finish painting and the other for general painting.
- Fitted with an ispray nozzle. This nozzle is able to spray thick paint and because of its quality it has a long life span.
- Fast and quick painting. It can spray nearly 8.4 Gallons of paint in an hour, or it can paint a 10*8 feet wall in 5 minutes.
- 5 feet hose provided.
- All the accessories including the hose are packed neatly in a box which is a very handy feature.
- Easy to clean and maintain.
- 1 year warranty provided by the manufacturer.
This is a sprayer designed for small to medium projects both indoors and outdoors. The most outstanding features of this model in comparison to Wagner 0518080 are its more powerful turbine and greater speed and versatility. You are able to use both thin and thick paint at a greater speed. Overall this is a reliable sprayer which gives you a wider scope of use in comparison to other sprays.
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#3. Fuji 2202 Semi-PRO 2
- Light weight and easy to use. This makes it a handy sprayer to paint indoors.
- Easy to adjust to get a fine finish.
- A two stage 1400 W powerful turbine.
- 25 ft. Hose with an air control valve enabling you to get round the paint area with convenience.
- It is furnished with a 1 Qt. bottom feed cup.
If you are new starter or a do it yourselfer this is an ideal spray to carry out your painting jobs. It is mainly built for indoor use to paint doors, walls, cabinets, fences, and shutters.
Things We Liked Things We Didn't Like
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To start using your HVLP Sprayer it important to take note of all the health and safety measures. The first thing is to follow the safety instructions of the producer stated in the User Manual.
Here are the most essential points you should have in mind before starting to paint:
- Safety measures in the work area:
- Keep the work area clean
- Remove any paint, solvent containers and any other combustible material.
- Make sure the fire extinguishers are functional.
- Make sure there is proper ventilation.
- Make sure there is no open flames, lamp lights, hot objects, cigarettes … etc. in the vicinity of the painting area.
- Personal safety measures :
- Wear protecting clothing and safety glasses.
- Wear protective gloves and masks.
- Stay diligent and alert when painting.
- Keep your hands, fingers or any other part of your body away from the spray jet.
- Things NOT to do:
- Pointing the spray gun at a person.
- Spraying material other than oil-based paints. (flammable materials, metallic paints, paint strippers, …)
- Spraying outdoors in rainy weather.
Cleaning means best performance
Many problems (as much as 90%) related to HVLP sprays are matters that can be solved by proper cleaning and maintenance. Therefore it’s very important that this is done in a step by step manner. The full cleaning and maintenance guide is provided in the User Manual provided by the manufacturer. Here are some of the tips on this issue to get the maximum performance from your sprayer.
- Clean your spray gun immediately after you are done with the job. Never leave it overnight for the next day.
- Using the guidelines in your user manual, always carry out the maintenance on a regular basis.
- If you are storing your spray for a longer period of a week it is necessary to do a comprehensive maintenance. This includes complete disassembly of the spray gun.
- Always use the necessary solvents especially made for this purpose. Remember that you only need a small amount of these solvents to do the job. Acetone and similar types are some of the solvents which really make the cleaning job perfect. Our suggestion is not to resort to cheap solvents. By doing so, you would be simply wasting your money.
Maintenance of your HVLP Sprayer
The first step to any trouble shooting of your sprayer is the correct cleaning of your apparatus. Through my own experience this is the ONLY cause of problems.
You can find the full diagnosis table in your user manual. Here is the run down of the main problems which occur and how to tackle them:
- The paint is sprayed unevenly
- Check to see there is enough paint in the cup.
- Check for clogged air cap or air nozzle.
- The Paint is not sprayed
- Check if there is paint in the cup.
- Check the pressure of the air.
- Check for any leaks.
- The Spray Gun Leaks
- Check that all the components linked together are of the same size.
- Tighten the fluid nozzle.
- The fluid needle might be faulty and need replacement.
Note: Basic Rules of maintenance
- Read your User Manual in details and learn about every aspect of its components.
- Make sure all the connections are tight and properly fitted.
- Make sure every part of your Sprayer is neat and clean.
FAQ of HVLP Sprayers
All most common questions asked about HVLP Sprays:
No.1: What is the fundamental difference between HVLP and Conventional Sprays?
Conventional sprays use high air pressure to suck up the paint by creating a vacuum in the paint cup, while the HVLP sprays use a high volume of air to pressure the paint in the cup to flow through the nozzle. To picture the difference better, the air flow in HVLP is like a vacuum cleaner while in the conventional models it’s like a compressor.
No.2: Are all HVLP sprays the same?
No, similar to all other kinds of spray guns different air caps are produced for different purposes. There are air caps for fine finish paint works or heavy outdoor paintings.
No.3: If my HVLP doesn’t work what might be the main problem?
Probably the air flow is clogged some where in the way or there might be too much fluid pressure in the sprayer.
No.4: Is it possible to convert my conventional sprayer to HVLP?
This conversion is not feasible mainly because the conventional air caps will not fit with HVLP system where a low air pressure is introduced.
No.5: In what ways painting with HVLP sprays is different with other sprays?
There are numerous differences but the main one is the distance which you should hold the air gun. The correct distance for conventional air sprays is 8 to 10 inches and for HVLP models is 6 to 8 inch.
No.6: How powerful my compressor should be to use for HVLP sprayers?
Usually you would need a compressor which will provide 50 PSI- 12 CFM of air to your HVLP spray gun.
No.7: What price range of HVLP sprayers should I invest in?
It is obvious that the more you pay the better quality you get. However as a general guideline, if you are planning to use a spray gun regularly as a profession it is a MUST to purchase a professional sprayer. However if you are a do it yourselfer you can choose models in the middle of the price range. Lastly if you are a one time user you won’t lose a lot if you purchase a model on the bottom line of the price range.
No.8: As a bottom line are HVLP guns better than the conventional ones?
Again here there are many arguments. Considering all the Pros and Cons HVLP design outshines the conventional models. It sprays more paint on the surface with much, much less overspray. This means a healthier and a more cost effective spray to work with.
No.9: If I want to buy a HVLP sprayer for finish painting task what information should I provide to the dealer?
– Type of coating which I am going to use.
– The CFM of my compressor at 40 psi pressure.
– How frequently am I going to use the sprayer?
No.10: How long does it take to clean a HVLP sprayer?
Cleaning HVLP spray guns in contrast to what you might think is very simple. These days HVLP sprays are much easier to clean in comparison to conventional models. There are only a few parts to disassemble and larger inlets. Especially if you are using water base coating the cleaning becomes much easier. If I say that if you clean your spray gun regularly it won’t take longer than cleaning a paint brush don’t be surprised.
No.11: Are HVLP Paint sprayers easy to use ?
In comparison to other sprayers currently available in the market, HVLP paint sprayers are easier to use. This is because they harbor low pressure that allows them to give a softer pattern. In addition to this, you can always expect low overspray when using these sprayers. This makes it usable even with novices who know little about paint sprayers.
No.12: Should your turbine case be hot ?
Yes. It is normal to feel heat coming from the turbine. The turbine motor heats up in a matter of minutes making the air become very hot especially at the turbine. When used over some time, the bass connector becomes too hot to touch and will require you to be extra careful when removing the hose from the turbine.
No.13. Where should the turbine be placed ?
When using a HVLP paint sprayer, it is advisable that you place the turbine on the floor. Preferably, the distance should be 20 ft away from the spray area. Placing the turbine on the floor allows the hose to come from the sprayer’s turbine without restricting air flow.
No.14: Can the turbine be kept in a box while in use ?
No. Though it may sound like a great idea to reduce the noise that comes from the turbine, it is very dangerous to keep the turbine in a box. When covered in a closed box, the noise will be reduced but the hot air released from the cooling fan will be re-circulated making the turbine to overheat. This can damage the motor.
No.15: Does the turbine case matter ?
The fact is that the smaller the turbine case you have, the easier it will be for your turbine to cool down. The fans come in handy when cooling the sprayer. The copper windings that power the motor require constant cooling and the fans play a major role in the cooling process.
No.16: Why I’m I experiencing paint buildups at the vents ?
Paint buildups are normally experienced if you are spraying around vents as the air passing through the vents is hot. Even with the reduced overspray, some paint in the air will eventually land on the turbine and the vents. When this happens, the paint is blow dried immediately by the hot air. This should not cause alarm as the buildup does not in any way mean that there is paint passing through the turbine and eventually being vented out.
No.17: How far from the surface should the spray gun be held ?
When using the HVLP paint sprayer, you will realize that the spray pattern will always be fan-shaped. This means that the size of the fan will always determine the distance from the wall. For a large fan, you will need to be 8” from the wall. It would prove to be difficult to produce a larger spray pattern if you held the sprayer close to the surface or target object.
No.18: Is thinning important when using HVLP paint sprayers ?
Yes. Just like any other sprayer, the paint’s viscosity will always prove to be a crucial consideration. It is necessary that you always have the right viscosity when making your coats and this may sometimes involve a trial and error process. Always be sure to use the right thinning agent for the specific paint in use.
No.19: Can I use HVLP paint sprayers to spray walls and ceilings ?
Yes. As long as you have the right thinning and equipment properly set, you can paint any surface including walls and ceilings. Though the sprayers were not designed to paint walls and ceilings, nothing can stop you from doing it.
No.20: Are all HVLP paint sprayer guns the same ?
No. There are different types of guns and this difference can be matched with the different applications that each gun handles. Different guns and aircaps will always be available to you for your different touch-up tasks.
The purchase of any paint sprayer should be informed by intensive research and going through HVLP paint sprayer reviews is one of the sure ways of getting concrete information. This is one of the Wagner paint sprayer reviews that will open your eyes and shed some light in your buying process.
With the information detailed here, it will now be easy for you to get the best HVLP paint sprayer and also enjoy completing tasks with it. Go ahead and grab one of these amazing sprayers from the renowned online stores.