Powder Coating Booths

When it comes to powder coating, having the right booth makes all the difference. Unlike liquid coatings, powder applications come with their own unique set of requirements—and that’s where we come in. Our powder coating booths are built tough with premium-grade G-90 galvanized steel, designed to handle whatever your finishing process throws at them while delivering consistent, quality results.

Powder coatings have been steadily taking over the finishing industry, growing into a preferred choice for manufacturers everywhere. Why? Powder coatings deliver durability and a beautiful finish without the added challenge of VOCs that come with liquid coatings. Additionally, with the right booth setup, you can actually reclaim and reuse your overspray, making your process more cost-efficient.

We know every operation is different, which is why we offer customization of your booth exactly how you need it. Contact our team today to explore your options and find the perfect powder coating spray booth for your application.

Request A Quote

Products

Non Recovery Powder Booths
Non-Recovery Powder Booths
Recovery Powder Booths
Recovery Powder Booths

Choosing the Right Powder Coating Booth

Finding the perfect powder coating booth isn’t just about picking one from a catalog, it’s about understanding your specific needs and matching them with the right technology. Below is a breakdown of key decisions you need to make when choosing a powder coating booth.

Non-Recovery vs. Recovery Powder Booths

Non-Recovery

A non-recovery powder coating booth is outfitted with standard exhaust filters that are designed to collect powder overspray as you work. However, as their name implies, overspray powder cannot be reused once it’s collected by the filters. Additionally, these filters must be periodically replaced as they collect more powder to maintain an even airflow.

Non-recovery powder coating booths are typically chosen for their lower initial cost, and are a great choice for manufacturers who routinely change colors and powder types. However, for manufacturers that have a high-volume of work, not being able to recover powder coating can result in increased operational costs.

Recovery

Compared to a non-recovery powder coating booth, a recovery powder coating booth is engineered to easily collect powder overspray while in use. Our recovery booths are designed with a cartridge-style filtration system that efficiently captures powder coating overspray, allowing clean air to recirculate back into your plant. This has the added benefit of eliminating the need for an exhaust stack, which often requires expensive air replacement systems.

While recovery booths present a higher initial cost compared to non-recovery models, they are an ideal powder coating booth for heavy-production powder usage. The added savings on powder coating recollection far outweigh the initial cost difference, often making recovery powder coating booths the cheaper long-term option.

Batch vs. Automated

How your booth fits into your workflow matters just as much as what type you choose.

Batch booths are typically freestanding units that can finish large numbers of products in batches, often operated manually by sprayers with powder guns. These systems offer flexibility and lower initial costs but require more manpower to operate.

Automated systems are all about consistency and volume. Featuring conveyorized finishing systems with automatic powder guns, these systems are designed to run continuously with minimal supervision. While they come with a higher upfront cost, automated systems can be more cost-effective in the long run for high-volume operations. 

The choice between batch and automated depends entirely on your product specifications and production volume. Some products require the precision of manual application, while others benefit from the consistency and speed of automation.

Spray-to-Waste or Reclamation

All spray systems need equipment to collect overspray in order to be compliant, but one of the significant benefits of powder systems is the ability to reclaim and reuse over-sprayed powder. However, reclaiming overspray is not always cost-effective.

  • Spray-to-waste systems should be considered when many colors are used in small quantities and reclaim is not required. 
    • Tip: Multiple booths can be used for optimal efficiency and to eliminate color changeovers
  • Cartridge-style booths or cyclone recovery systems are typically the best fit for long color runs with single colors

The decision must balance the expensive cost of reclaim systems with the potential savings from powder recovery. Operations with frequent color changes may find spray-to-waste more practical, while those running long production runs of single colors will benefit from reclaim capabilities.

Manual vs Automatic

This choice shapes everything from your booth design to your safety requirements.

While manual application gives greater control and flexibility for custom jobs and complex parts, automatic application provides consistency and speed perfect for high-volume runs of similar parts.

Many shops operate somewhere in the middle, using automatic guns for base coating and manual touch-up for tricky spots.

For a manual application however, you’ll need more sophisticated filtration and airflow systems to maintain the safety of workers in the booth, as powder coatings can be highly flammable in an atomized state.

One Color vs Many Colors

How often you change colors is one of the driving considerations in powder spray booth design. 

Running mostly one color? Set up a recovery system and watch your material costs drop as you reclaim nearly all your overspray.

Changing colors constantly? You’ll need to think more strategically. Recovery systems require individual color modules to prevent contamination, and color changes take time. For operations running rainbow spectrums daily, spray-to-waste or quick-change collector modules might make more sense. Some facilities dedicate different booths to different color families to maximize efficiency.

Cartridge vs Cyclone Systems

The filtration system you choose affects everything from maintenance to color change efficiency.

Cartridge modules

  • Best at powder recovery, capturing up to 99% of overspray
  • Filters use reverse air jets to stay clean, and collected powder drops into recovery hoppers below
  • Straightforward, reliable, and cost-effective
  • Color changes require swapping out modules to avoid contamination.

Cyclone Systems

  • Use centrifugal force to separate powder from air, typically recovering 85-95% of overspray
  • Excel at quick color changes, requiring only a swap out of the cone 
  • Handle high-volume production well, easily adapting to changes in exhaust velocity
  • Perfect for automated lines or facilities where color flexibility matters more than maximum recovery

Powder Coating Process Overview

Understanding the complete powder coating process helps you make better booth decisions.

Pre-treatment requirements 

Before anything gets coated, it needs to be clean and ready. That means removing oils, rust, and old finishes. Some parts need chemical pretreatment for optimal adhesion. The cleaner your parts going in, the better your finish coming out

Application methods

  • Electrostatic spray: The go-to method for most operations. The powder gets an electrical charge while your part gets grounded, ensuring the powder sticks to the part until curing
  • Fluidized bed: Coating works differently. Parts are heated and dipped into a bed of fluidized powder, great for heavy coatings or when you need complete coverage on complex shapes

Curing process integration

After application, parts head to the curing oven where heat transforms the powder into a smooth, durable finish. Your booth placement needs to work with your curing line for smooth production flow.

Quality control considerations

Regular checks for thickness, adhesion, and appearance keep your customers happy and rework costs down.

Our expert team is experienced in designing and manufacturing powder coating booths that can handle all parts of the powder coating process as required by your application. 

Contact

NFPA 33 FAQS

General Compliance

What is NFPA 33, and who needs to comply with it?

NFPA 33 is the national standard for spray application using flammable or combustible materials. Any facility that operates spray booths, spray rooms, or spray areas for industrial coating applications must comply with NFPA 33. This includes aerospace manufacturers, automotive facilities, furniture manufacturers, and any industrial operation using spray-applied coatings.

Is NFPA 33 legally required?

While NFPA 33 itself is a standard, not a law, it is typically adopted and enforced by local authorities having jurisdiction (AHJ), OSHA regulations, insurance companies, and building codes. Non-compliance can result in fines, shutdown orders, insurance issues, and increased liability in case of accidents.

How often is NFPA 33 updated?

NFPA 33 is typically revised every 3-5 years. The current edition is 2018, with updates expected periodically. It’s important to verify which edition your local jurisdiction has adopted, as they may not immediately adopt the newest version.

Booth Design & Construction

What’s the minimum distance required between a spray booth and other operations?

Spray booths must be separated by either 3 feet of clear space OR a partition with a 1-hour fire resistance rating. Multiple connected spray booths are considered a single operation and don’t require separation from each other.

Ventilation & Air Flow

Can I recirculate air from my spray booth back into the plant?

For liquid spray operations, recirculation is only allowed if you meet ALL requirements, including: particulate filters, vapor monitoring below 25% of the lower flammable limit, automatic shutdown systems, and AHJ approval. Powder coating booths have more flexibility for recirculation with proper filtration and monitoring.

Do exhaust fans need to run continuously?

Yes, ventilation must operate during all spray operations AND continue afterward long enough to exhaust vapors from drying coatings. Automatic spray equipment must be interlocked so spraying cannot occur without ventilation running.

What type of fans are required?

Fans must be spark-resistant and constructed of materials appropriate for the materials being sprayed. The fan motor must be located outside the airstream or be rated for the hazardous location classification.

Electrical & Safety Systems

What electrical equipment can I use inside the spray booth?

All electrical equipment inside the booth must be rated for Class I, Division 1 hazardous locations. This includes lights, switches, outlets, and any control equipment. Equipment within 3 feet of booth openings must be Class I, Division 2 rated.

Do I need explosion-proof lighting?

Not necessarily. Lights separated from the spray area by approved glass panels and serviced from outside can be standard-rated. However, any lights inside the classified area must meet hazardous location requirements.

Is fire suppression required?

Fire suppression requirements depend on your local codes and the specific materials being sprayed. Automatic sprinkler systems are often required, and portable fire extinguishers must always be readily available.

Materials & Storage

How much paint can I store near my spray booth?

If your mixing room is within 6 feet of the spray area, the combined total cannot exceed 120 gallons. If separated by more than 6 feet, you can store up to 300 gallons in the mixing room and 60 gallons in the spray area.

What are nitrocellulose applications, and why do they require special handling?

Nitrocellulose lacquers are fast-drying coatings used on furniture, musical instruments, and some automotive finishes. They require special handling because overspray can spontaneously ignite. NFPA 33 requires either water-wash booths or daily cleaning of dry filters and baffles for these materials.

Can I spray different types of coatings in the same booth?

Generally, yes, but you cannot use the same filters for materials that may spontaneously ignite when mixed (like nitrocellulose and oil-based materials). Some material combinations may require complete cleaning between applications.

Powder Coating Booths

Are powder coating booths subject to different requirements?

Yes, Chapter 15 of NFPA 33 specifically addresses powder coating with unique requirements for electrical grounding, dust collection, explosion protection, and the advantage of being able to recirculate filtered air back into the plant.

Do I need explosion venting for powder coating?

Depending on the size and design of your powder system, explosion protection per NFPA 68 may be required. This typically involves explosion venting or suppression systems for dust collectors and recovery systems.

Maintenance & Operations

How often do I need to change booth filters?

NFPA 33 doesn’t specify exact intervals for standard operations, but filters must be changed when they become loaded enough to affect booth performance. For nitrocellulose applications, daily filter changes are required. Always follow manufacturer recommendations and maintain proper airflow.

Who is the “Authority Having Jurisdiction” (AHJ)?

The AHJ is typically your local fire marshal, building inspector, or OSHA representative who has the legal authority to enforce codes and approve installations. Requirements can vary by location, so it’s important to identify and work with your specific AHJ.

Where can I get a complete copy of NFPA 33?

The complete NFPA 33 standard can be purchased from NFPA.org. Free access to view (but not print or download) the standard is also available on their website with registration.