While they used to be exclusively about auto shops, spray paint booths have now expanded into many other applications. This technology has now truly offered great benefits to different manufacturing industries that make everything, from the tiniest circuit boards and even the most 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
As expected from the manufacturing business, you will find a spray paint booth that is built for your specific application. Some models are made for motorcycles, boats, small plastics and so on.
Here are the key types of spray booths you will find today:
These models have a rear exhaust, a ceiling and two sidewalls. Air flows right through the front and leaves from the exhaust at the back. Open booths are often used for finishing furniture and for woodwork. These booths are also found in auto manufacturing and repair facilities.
This spray booth is enclosed, and exhausts the same volume of air as it pulls in. In colder environments, temperature control and air purity are maintained with the use of an air makeup system or heater. This method is popularly used for manufacturing and refinishing automobiles and electronic devices, in which the overall finish quality is significantly affected by the environment’s cleanliness.
Non-pressurized booths use filters for drawing air from, as well as expelling it into the building. In some environments, a heated air makeup unit is a requirement. Non-pressurized booths are commonly used in vehicle manufacturing and refinishing, metalwork, fiberglass and many other industries.
Paint Booth Configurations
Non-pressurized and pressurized spray paint booths alike can have different airflow configurations, each one with its own pros and cons.
In cross flow booths, air moves from front to back and side to side.
With downdraft booths, you have air moving from the ceiling downward. This configuration can have various styles, such as the “pit” (an excavated pit and tunnel form part of the exhaust system) which is also 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.
Each booth is suitable for certain applications, depending on airflow needs and other requirements. For example, downdraft and side downdraft are best where finish quality is crucial.
When there is a need to control cost, cross draft and semi-downdraft are recommended. Finally, when space is at a premium, the cross draft model proves to be the best choice.