Top Features of the Graco Reactor 3 Spray Machine

By Kevin Malone

Graco Reactor 3 proportioners are the latest models of spray foam proportioners from the experts at Graco. Designed for medium to high output applications, Reactor 3 models can deliver from 20 to 30 pounds of spray foam per minute. The third-generation proportioner is designed for continuous system communication from drum to gun, eliminating ratio issues and maximizing material yield.

Graco’s excellent reputation among contractors is just one reason why Graco spray machines continue to be among the most popular sellers. Now, with the enhancements included in the Graco Reactor 3 spray machine, users get additional features to optimize performance.

Top Features — Graco Spray Machine

The Graco Reactor 3 spray machines are advanced spray foam and polyurea systems that have been redesigned to build on previous models. When you invest in a Graco Reactor 3 spray machine, you get improved efficiency, maneuverability, and ease of use.

While different models and upgrades provide different functionality, every Graco spray machine in the Reactor 3 lineup features:

  • Improved spray foam productivity for optimal performance
  • Intuitive touchscreen controls featuring an advanced electrical design and controls from a single screen
  • Auto pressure balancing
  • Independent hose heat
  • Brushless motor for improved pressure and flow performance
  • Internal and external heated hose options
  • Active ISO lube pump system
  • Reduced footprint to provide additional room in your rig
  • Control of A and B materials at different temperature for better pressure balancing
  • No check values to reduce maintenance and downtime

Automated On-Ratio Performance

Spray ratio control is crucial. Off-ratio spraying leads to poor results and may present health risks.

The Reactor 3 systems communicate with all components, providing exacting ratio control, material supply, and temperature monitoring. This eliminates poor spray results and health risks while providing optimal performance.

Reactor 3 models can be upgraded to take advantage of the Katalyst intelligence system. Katalyst eliminates the largest off-ratio issues. For example, the Katalyst system can automatically shut down equipment when materials have run out so air does not enter the fluid system. It can also automatically adjust the power to the pumps for optimal material feed and eliminate issues caused by cold materials.

Faster, Lighter, and Easier to Use

With the Graco Reactor 3 system, you can work more quickly without sacrificing quality. Touchscreen monitoring makes the system easy to operate, allowing you to keep an eye on what’s happening. Because of its lightweight design, size, and power requirement, you can move the entire rig wherever you need it.

Optimized Productivity

You get a consistently high yield with reduced waste, allowing you to optimize productivity and profitability. Remote control, monitoring, and quick pump changeovers mean less downtime on the job.

Reactor 3 E-20 Spray Foam Proportioner System

The Reactor 3 E-20 Spray Foam Proportioner System is built for contractors working residential or smaller jobs and is a perfect machine for entry-level contractors. Small heaters also make it a good choice for contractors that work in temperate climates and do not require large heaters.

Technical specs

Specifications for the Reactor 3 E-20 spray foam proportioner include:

  • Maximum Flow Rate: 2 GPM
  • Maximum Hose Length: 220 feet
  • Maximum Spray Pressure: 2000 PSI
  • Motor: 1.8 HP Brushless
  • Primary Heat: Up to 10 kW

Reactor 3 E-30 Spray Foam Proportioner System

The Reactor 3 E-30 Spray Foam Proportioner System is perfect for contractors that take on bigger jobs and need more control over output. The E-30 performance rivals that of hydraulic systems while running on electric power, saving you money on upfront costs.

Technical specs

Specifications for the Reactor 3 E-30 spray foam proportioner include:

  • Maximum Flow Rate: 3 GPM
  • Maximum Hose Length: 320 feet
  • Maximum Spray Pressure: 2000 PSI
  • Motor: 2.5 HP Brushless
  • Primary Heat: Up to 15 kW

Intech Equipment & Supply

Intech Equipment & Supply is a full-service spray foam equipment and parts supplier. You can order your Graco spray machine equipment and parts online and get service and support from experts who are former spray foam contractors.

We sell turnkey systems and custom spray foam rigs that feature Graco equipment. Find the parts, machines, and custom spray foam rigs you need for residential and commercial jobs at Intech Equipment.

Shop online or talk to one of our Graco spray machine experts today.

About Kevin Malone
Kevin Malone is a leading expert in the spray foam insulation industry with 34 years of experience in spray foam fluid handling and a passion for innovation. He currently offers his extensive knowledge to Intech Equipment and Supply customers by supporting them in selecting quality spray foam equipment to optimize their business. Learn more about Kevin here.


Intech Equipment & Supply was founded in 1995, and has since grown to become the leader in spray foam equipment, mobile spray foam rigs, and parts supplier. With locations all across North America we are available when you need us most.