The following items are typical options to a spray booth. A description and factors about justification and costs are included for reference.
Modifying a standard design can dramatically increase the effectiveness of your spray paint booth and is usually due to the building restraints or vehicle/part/rack requirements. Many of the spray booths made by Tools USA have one, two or more of the following modifications.
1) Extra height
- Commonly one or two feet for a spray booth up to automotive size to allow for tall vehicles, parts or part racks.
- Over two feet often requires extra structural integrity (structural frames or beams).
- Adding to the height of a spray booth can require more total air to be exhausted to maintain linear air flow performance.
2) Extra length
- Standard panels of 24″, 34″ or 44″ width allow for longer vehicles, parts or racks, or more access around the item(s) being coated.
- Extra length in side-down draft spray booths may require more total fans to maintain safe air flow performance.
3) Extra lights
- Tools USA has designed our standard spray booths to have adequate lights and light placement for most applications.
- Extra lights can add to the total effectiveness of the booth for oddly shaped items or in the case of adding extra length to the spray booth.
- The standard lights (Class 2, Div II) are required by NFPA-33 to be no less than 36″ from any opening in the spray booth (doors, open-face, conveyor openings).
- See ‘Whitecoat’ below
4) Inside-access lights
- Inside-access lights are Class 1, Division II. These lights are used for three main reasons:
- The spray booth will be placed against a wall which limits the access for changing bulbs.
- The spray booth is to be designed with a light less than 36″ from a spray booth opening (door, open-face, conveyor cutout).
- The inside-access lights allow changing of bulbs from inside the spray booth.
- Inside-access lights require different mounting than standard lights so the entire panel has to be designed for this type of light.
- Inside-access lights are significantly more costly than standard lights.
5) White Powder Coat
- This process is a high-gloss, smooth white powder coat.
- This finish provides a high-gloss surface inside of the spray paint booth that reflects the illumination from the lights.
- This finish does not provide any more rust prevention than the galvanized finish on the standard wall panels.
- This finish does provide a more professional and detailed appearance.
6) Bi-fold doors
- Bi-fold doors are hinged in the middle.
- Bi-fold doors allow easier opening of the doors in a confined area.
- Bi-fold doors allow the weight of the open door to closer to the jamb and is the preferred design for doors over 65″ wide.
7) Tri-Fold doors
- Tri-fold doors are a bi-fold door and a single-wide door in place of two single-wide doors
- Tri-fold doors allow easy access to the spray booth.
8) Drive-thru doors
- Drive-thru doors allow the vehicle, part or part rack to pass through the spray booth. These are typically used in industrial situations where staging of parts is more typical.
- Drive-thru doors can affect the efficiency and overall height of the spray booth if the exhaust plenum has to be modified for height requirements of the door.
9) Rear exhaust
- This design allows the fan to be mounted on the back wall of the spray booth instead of the top.
- This design is most commonly used in low ceiling buildings or when a duct already exists for exhaust out of a wall.
10) Air Make-up Unit
- This unit allows air to be supplied to the intake of a spray booth either from the outside of the building (most common) or inside the building.
- The air temperature can be increased by up to 100-degree F (for most applications) to allow use of cold outside air and/or to expedite the flash-off and curing process.
- The units are costly but can dramatically increase the efficiency of the spraying and curing process.
11) HEPA Filter
- This filter unit allows exhausted air to be returned to inside of the building.
- This unit applies only to powder coating or media blasting operations.
- This unit does not apply to solvent-based or water-based spraying operations.