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Spraying & operating your reactor
Recognising bad spray results and fixing pressure and flow issues are crucial to ensure the best spraying results. With the information on this page, spraying and operating your Reactor becomes easy. You will also find answers to FAQs such as “How do I connect and use the Reactor app?” and “Can I use two guns on one Reactor?”
What is the benefit of preheating material before the pump on the low-pressure side?
Preheating the material before it runs through the pump helps achieve high-quality spray results.
What is my spray pattern telling me?
Based on the spray pattern of your foam, you can diagnose and correct pressure imbalances.
What causes a bad spray pattern from the tip?
When spraying foam and polyurea, bad spray patterns from the tip can occur. What are the causes?
How do I remove trapped air from the system?
Use this guide to help you remove air from your spray foam system, with minimal downtime.
How do I know if there is air in the feed hose?
Air in the feed hose affects spray results and must be avoided. But how can you recognise it?
How do I get the best performance from the heated hose?
By applying a few best practices, you can improve the performance of your heated hoses and Reactor.
How do I adjust my pattern size on the CS gun?
Check this video and learn how to adjust the pattern size on your CS gun.
What is the minimum and maximum heated hose length supported?
Discover the minimum and maximum heated hose length (including whip hose) of a Graco Reactor.
What is the difference between the maximum fluid working pressure and the maximum spray pressure for an E-10hp?
Discover the difference between the maximum fluid working pressure and the maximum spray pressure of your E-10hp plural component proportioner.
Minimum and maximum heated hose length
To ensure effective impingement mixing and spraying, you should take into account the minimum and maximum hose length of your Graco Reactor.
How do I use the variable flow cap on the Fusion AP?
Watch this video and learn how to use the Fusion AP variable flow cap.
What causes damage to the filter element such as tearing or collapsing and will this result in tip plugging?
A damaged filter results in frequent tip plugging. How can you avoid filter screen damage?
How do I install, connect and use the Reactor Connect app?
Use this guide to connect and use the Reactor Connect app to make real-time adjustments from your smartphone.
Can I use a Reactor without a hose thermocouple (FTS)?
Can I use a Reactor without an FTS? Discover the answer to this frequently asked question.
At what ratio variance will the electric Reactor shut off?
Automatic ratio variance detection ensures good spraying results. But how is ratio variance calculated?
Reactor 2: Resistance control mode
Also referred to as "Resistance Mode", Resistance Control Mode (RCM) is Graco's new, patent pending, heated hose temperature control technology.
Can I use two guns on one machine?
This video goes through why we do not recommend using two guns on one machine.
