While they used to be exclusively about auto shops, spray paint booths have now expanded into many other applications. This technology has proven its usefulness in various industrial settings now involving anywhere from tiny circuit boards to massive equipment.
Aside from providing an efficient way of finishing these products, spray paint booths also improve worker safety by ensuring their compliance with the OSHA (Occupational Safety and Health Administration), NFPA (National Fire Protection Agency) and other safety organizations.
Types of Spray Booths
Like most other things in manufacturing, there is likely a spray paint booth that is designed for your unique needs. There are models meant for motorcycles, small plastics, aircraft and so many more.
Here are the types of spray booths you can find today:
These models come with two sidewalls, a rear exhaust plenum and a ceiling. Air comes in through the open front and exits via the rear exhaust system. Open booths are often used for finishing furniture and for woodwork. These booths are also found in auto manufacturing and repair facilities.
This type of spray booth is enclosed, and exhausts as much air as it draws in. In colder environments, temperature control and air purity are maintained with the use of an air makeup system or heater. This is a usual method of manufacturing and refinishing electronics and motor vehicles, where the quality of the finish is heavily influenced by the cleanliness of the environment.
In non-pressurized booths, air is drawn from and expelled into the building with the use of filters. Sometimes, a heater air makeup unit is required. Non-pressurized booths are commonly used in vehicle manufacturing and refinishing, metalwork, fiberglass and many other industries.
Paint Booth Configurations
The airflow configurations of pressurized and non-pressurized paint booths can vary widely, and each one comes with its own advantages and setbacks.
Cross flow booths have air moving from the front to the back and side to side.
Downdraft booths have air coming in from the ceiling down to the floor. You will find several styles with this configuration, with the “pit” style (the exhaust system includes an excavated pit and tunnel) being the most common.
In semi-downdraft booths, air comes in from top to rear, while in side downdraft booths, it flows in from the ceiling going to the sidewalls where the exhaust filters are.
Every booth is ideal of specific applications, depending on the user’s requirements. For example, downdraft and side downdraft are best where finish quality is crucial.
If price is an issue, cross draft and semi-downdraft are more popularly used. Lastly, if space is at a premium, the best option is often the cross draft model.