FAQS on HVLP

Definition of HVLP High Volume Low Pressure - What is HVLP?

Common Questions on HVLP Applications

Get Answers on Common HVLP Application Questions - How to use HVLP Spray Gun.

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Over 200 years of combined Spray Gun Knowledge from some of the oldest Spray Gun Professionals in the Business. Learn from the professionals on product application of HVLP to your trade or industry.

Unique industrial applications of HVLP? LVLP? Transtech or Hi-Tech? Don't get bad advise from salesmen with limited product lines. We advise professionals daily, nationwide, on all types of applications. We have even helped companies that have been spraying incorrectly for over 30 years. All our information is updated as we research applications daily.

 

Air Gun Spraying

This process occurs when paint is applied to an object through the use of an air-pressurized spray gun. The air gun has a nozzle, paint basin, and air compressor. When the trigger is pressed the paint mixes with the compressed air stream and is released in a fine spray

Due to a wide range of nozzle shapes and sizes, the consistency of the paint can be varied. The shape of the workpiece and the desired paint consistency and pattern are important factors when choosing a nozzle. There are two types of air-gun spraying processes. In a manual operation method the air-gun sprayer is held by a skilled operator, about 6 to 10 inches (15–25 cm) from the object, and moved back and forth over the surface, each stroke overlapping the previous to ensure a continuous coat. In an automatic process the gun head is attached to a mounting block and delivers the stream of paint from that position. The object being painted is usually placed on rollers or a turntable to ensure overall equal coverage of all sides - AKA Automatic Spray Guns.

HVLP (High Volume Low Pressure)

This is similar to a conventional spray gun using a compressor to supply the air, but the spray gun itself requires a lower pressure (LP). A higher volume (HV) of air is used to aerosolise and propel the paint at lower air pressure. The result is a higher proportion of paint reaching the target surface with reduced Overspray, materials consumption, and air pollution. A regulator is often required so that the air pressure from a conventional compressor can be lowered for the HVLP spray gun. Alternatively a turbine unit (commonly containing a vacuum cleaner derived motor) can be used to propel the air without the need for an air line.

A rule of thumb puts two thirds of the coating on the substrate and one third in the air. True HVLP guns use upto 20 cfm (34 m3/hr), and an industrial compressor with a minimum of 5 horsepower (3.7 kW) output is required. The Exception is Low CFM Spray Guns which incorporate LVLP Technology to run on compressors as low as 4 CFM in a full size model. HVLP spray systems are used in the automotive, marine, architectural coating, furniture finishing, and cosmetic industries.

 

LVLP (Low Volume Low Pressure)

Like HVLP, these spray guns also operate at a lower pressure (LP), but they use a low volume (LV) of air when compared to conventional and HVLP equipment. This is a further effort at increasing the transfer efficiency (amount of coating that ends up on the target surface) of spray guns, while decreasing the amount of compressed air consumption.

 

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  • AUTOMOTIVE HVLP

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  • BOAT PLANE WOOD HVLP-

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  • PRODUCTION INDUSTRIAL HVLP -

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1st gun is a typical HVLP pressure feed spray gun. 2nd BLUE gun is an Industrial HVLP spraying a thick industrial material. Ask Us your Questions.