Friday, June 25, 2021

How to Choose a Mobile Spray Rig: a Brief Guide for 2021

Selecting a mobile coatings unit requires knowledge and skill. Plus, when you invest in the proper equipment, you get to enjoy an effective and long-lasting rig that improves your overall business productivity.

In this post, you’ll discover how to choose the best mobile spray rig for you. We accurately describe the vital steps you should head consideration to before buying your spray rig.

4 Key Steps Involved in Choosing a Mobile Coatings Unit

Custom iconic rig

1. What is the Purpose of your Spray Rig?

The first step to take before selecting the best spray foam rig is to define the purpose of the mobile coatings rig.

In general, these are the basic categories of use that determine the rigs that will work for you:

  • Roofing/insulation
  • Part-time/full time
  • Residential/commercial

Are you interested in spraying foam insulation, spraying storage tanks, and other application methods?

While it’s true that some coatings rigs come pre-equipped, you can customize your spray rigs to fit your plan.

If you’re a residential contractor or home builder that deals with applications that require average output of 5-8 pounds per minute, a machine with a lower maximum output of 15-20 PPM is great – such as air-driven devices.

If you operate on both large residential and commercial projects and spend most of your time in these projects, hydraulic machines with more powerful output ratings are ideal.

Do you intend to install spray coating roofings? With the introduction of robotics in the spray coating markets, accuracy and maximum production can be achieved with high-performance foam and coating machines.

2. Do you intend on spraying both Foam and Polyurea Coatings?

Another determinant to consider is the particular material you'll be spraying. Do you plan to spray only spray foam, or do you have ideas for coatings, slab jacking, or pour coatings?

For instance, an air-driven closed-cell spray coating rig is common and easy to use if you're working on your home. These works ideally for small home renovation projects.

However, if you intend to spray several hundred or thousands of square feet, a more powerful hydraulic machine will work well for both coatings and spray foam. Whether you are a contractor needing to install open-cell foam or closed-cell foam, they are both rated as a moisture barrier and serve as a higher R-value than fiberglass or rock wool. Those with lower R-value can retain moisture and lead to mold.

3. Do You Require High Pressure or Low Pressure Spray Foam Equipment?

Graco SMART Machine with app

The third most important stage in buying or choosing a mobile coatings unit is defining the kind of pressure your rig should have. This can change the requirements of space and equipment needed.

If you intend to spray coatings only in a residential setting, you should select lower output spray equipment. However, for spray coatings or spray foam in a non-residential setting where much more material is required, you need a higher output hydraulic machine with more hose length, pressure ratings, and appropriate transfer pumps.

4. What Type of Trailer Do You Need?

16 foot trailer

Finally, it would help if you didn’t neglect your trailer type when planning to buy a spray coatings rig. It’s essential that the rig you purchase can conveniently pull the loads in your trailer while supporting the demands of the intended use. 

For example, will the rig be employed in the city where congestion is likely, and space is a premium, or will you need access in a more challenging geographical location where maximum payloads and extra rugged suspension are required?

If you do a job where you carry mostly large loads, your rig should be customized to work for a goose-neck trailer, fifth wheel, or box truck. Note that if you want to buy used equipment, get the guarantee that it’s as efficient as the new one. Smaller loads can benefit from a box truck or smaller trailer.

Final Thoughts

In brief, this article serves as a short guide for choosing a spray coating rig for your small or large residential or commercial projects.

We’re hopeful that the four steps you read above will help you to make an informed decision. No doubt, the right investment in spray rigs will produce ripples of business benefits.

Do you need to purchase spray foam equipment?

 ArmorThane specializes in supplying and building spray coatings equipment. They also offer application training and service maintenance for your equipment.

You deserve the best equipment for your business at a fair price. You can also sign up for their e-newsletter to getting more tips on spray equipment.

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Let ArmorThane Build It Right

We want to make your coating jobs as convenient and fast as possible. That's why we design the trailer to your request or we'll help guide you through the layout and equipment choices based on your business plans. Options range from a smaller, low pressure configuration to a longer, two-room version that's fully outfitted with a high volume system.

Example Trailers

Industries and projects have difference requirements. Ask us for more details on these custom built examples:

  • Primary and Secondary Containment Unit – 36 Ft Gooseneck Trailer with resting berths and large chemical storage
  • Mining and Heavy Industry Unit – 30 Ft Gooseneck Trailer with multiple air tools from one large compressor
  • Residential and Commercial Coatings – 20 Ft Bumper Pull Trailer designed for easy-to-reach projects such as decks, animal enclosures
  • Foam-Focused Unit – 20 Ft Bumper Pull Trailer with long line sets reaching from the trailer
Each Mobile Coatings Unit comes complete with everything you need to get started AND keep going. Everything is included up front…

Projects are different from one applicator to the next. So, why buy a trailer designed for someone else? Instead, we customize the design of a trailer to fit your projects.

Our Coatings Units take power and equipment to any industrial, commercial or residential jobsite. Customers look to us for guidance, but the final choice of equipment and layout is yours. Options vary from a smaller, high or low pressure configuration to a longer, two-compartment version that’s fully outfitted with a high pressure system. Sizes typically range from 16' up to 36'.

MCU are Built to Take the Coatings Business Directly to the Job Site

Whether you decide to run completely mobile or simply add flexibility to a workshop business, ArmorThane helps you select the materials and application equipment that fits your plans.

Trailers are specifically designed for easy access with all of the tools needed to produce high-quality ArmorThane coatings. A gas generator even allows you to bring power to any site.

Image result for mobile coating units

While No Two Trailers are Alike, Here are Some Features of One-Compartment and Two-Compartment MCUs:

  • Rear Ramp Entry Door
  • Optional Separated Equipment Room
  • Exhaust Fans for Equipment Room
  • Spray Gun Access Door
  • Ventilated Generator System
  • Multiple Regulated Air Drops
  • Multiple 110V and 230V Power Connects
  • Propane or Electric Trailer/Material Heat
  • Coated Interior for Scratch Protection
  • Shore Power Switch
  • Outside Fill Fuel Tank
  • Refrigerated Dry Air
  • Side Entrance Door into Optional Equipment Room
  • Optional Internal Wall for Sound Reduction, Insulation
  • Propane Travel Racks for Propane Heat
  • Reinforced Hose Hangers
  • Hose Connection Impact Guard
  • Proportioner Impact Guard
  • Wall-Mounted Tool Cabinets
  • Work Bench with Gun Vise
  • Eye Wash Station
  • First Aid Kit
  • Fire Extinguisher
  • Optional Exterior Graphics

Secondary containment pit coating

Plus we provide all of the polyurethane, polyurea and hybrid coating products, primers, sealers, topcoats, spray guns, tools and supplies you need.

Several Questions Help Us Make Key Design Recommendations

We want to help you make the right decisions. When you talk with us, we’ll ask questions regarding:

  • Type of Spraying Projects
  • Spraying Environment (Temperature, Humidity)
  • Spraying Distance from the Trailer
  • Tools and Equipment Used
  • Access to Power, Cost of Power
  • Equipment Noise, Heat
  • Ventilation Required
  • Site-to-Site or Fixed Locations

You get:
Industry Leading Components
• Turn Key Generator Powered Unit
• Open and Closed Cell Spray Foam
• Fresh Air and Safety Systems
• Climate Controlled Mobile Storage

Heated Hose Rack
Holds up to 410 ft. of hose. Designed with no sharp edges to tear or fray protective scuff jacket. Includes mounting bracket for heated hose circulation manifold.
Fit and Finish
Interior of trailer is lined with a white laminated plywood (not just painted). White aluminum trim in corners keeps the fluid and air hoses concealed for a clean and professional look.
Fully Insulated
ArmorThane Mobile Rigs are fully insulated with sprayed polyurethane foam for the best insulation while adding structural strength to the trailer.
Trailer Specs
Trailer manufactured by United Trailers with 7.5 ft. tall interior height, double I-beam construction with support studs on 16 inch centers. Includes rear bogey wheels, and is backed with a 5 year warranty.
Work Bench and Cabinet
Galvanized steel work bench with vise, grinder and overhead white aluminum locking cabinet.
Barrel Braces
Engineered to hold two or three sets of material securely for a mobile application.
Generator/Air Compressor All rigs come with generators and air compressors from leading manufacturers and are approved installations backed by warranty.
Separated Utility Room
Generator is installed in separate utility compartment, sealed from the spray/work space — reducing noise and exposure to emissions.


Image result for mobile coating unit
  • ft (8.5m) gooseneck trailer (8 ft / 2.4m height)
  • 20 ft (6m) tag-along trailer (8 ft / 2.4m height)
  • 16 ft (5m) tag-along trailer (7 ft / 2.1m height)
  • Box truck
  • Sea containers
  • 53 ft (16m) trailers for roofing and Xtreme Mix
    All trailers and box trucks include:

  • Proper ventilation. Engineered louver system designed to keep the generator from overheating
  • Color-coded drum restraints
  • Insulated partition wall between utilities and cabin. This separates the generator from the proportioner – reducing noise during operation
  • Electrical system with control panel
  • Hose hanger (up to 410 ft /125m capacity)
  • 1/4 in (.635cm) plywood walls, double 3⁄4 in (1.9 cm) plywood flooring (trailers only)
  • Heavy-duty 8 in (20.3 cm) main beam construction (trailers only)
  • Custom barrel brace set
  • Two ABC approved fire extinguishers
  • Deluxe first aid kit



  • Reactor® H-40
  • Reactor H-25
  • Reactor E-30
  • Reactor E-20
  • Reactor H-XP2
  • Reactor E-XP2
  • Reactor A-20
  • Xtreme Mix™
    Gun Package:

  • Fusion® Air Purge
  • Fusion Mechanical Purge
  • Gusmer® GX-7
  • GX-8
  • GX-DI
  • Gap Pro
  • D-Gun
  • XTR Gun
  • Flex Plus™ Gun

  • 2000 psi
  • 3500 psi
  • 5000 psi
  • 7250 psi (Water-jacketed hose available)


  • 40 KW diesel
  • 60 KW diesel
    Generator packages include:

  • Installation and wiring
  • E-stop
  • Hardware
  • Shut down alarms
  • Correct sizing for application


  • Rotary screw compressor (40 cfm) integrated with generator saves valuable floor space (60 cfm model is optional)
  • 5 hp Champion compressor (17.5 cfm)
  • 5 hp Champion compressor (Vertical) (17.5 cfm)
  • 10 hp Champion compressor (35 cfm)
    All air systems include:

  • Installation and plumbing
  • Refrigerated dryer – 225°F (107°C) inlet temperature ensures proper air drying in any climate
  • Filtration
  • Regulators
  • Quick disconnects
  • Correct sizing for application