What fluid should I use when storing a Graco Reactor unit for a long period of time?
Before storing a Graco Reactor system, you must fill it with a DOP, TCP, or moisture-free oil.
Isocyanate can crystallize due to moisture contamination or freezing. To prevent moisture from reacting with isocyanate, never store your proportioner dry or with spray foam/polyurea materials still in the proportioner, hoses, and gun. Always leave the system filled with an appropriate moisture-free fluid. However, you need to choose the right solvent.
When an empty spray foam proportioning system is stored, moisture could contaminate the isocyanate material. To avoid crystallization, you must fill the system before storing it for a long period of time.
What to do before storing your Graco Reactor
1. Clean the Reactor with a compatible solvent
Before storing your Graco Reactor, you should clean it with an appropriate solvent. The Reactor and heated hoses are compatible with most solvents. When selecting the solvent, make sure it is compatible with the material you are applying, and that it contains no moisture.
2. Fill the Reactor with a moisture-free fluid
Fill the system with DOP (dioctyl phosphate), TCP (tricresyl phosphate) or another moisture-free fluid (such as Graco TSL) that does not react with the equipment or the A or B side chemicals. This material can remain in the system and the hoses until new material is introduced.
IMPORTANT: Never store the system dry and do not use water to fill it.
How do I properly shut down, flush, and store my electric Graco Reactor?
Proper shutdown of your electric Graco Reactor is crucial for the reliability of your system and the quality of the spraying result.
How do I properly shut down, flush, and store my pneumatic Graco Reactor?
Proper shutdown of your pneumatic Graco Reactor is crucial for the reliability of your system and the quality of the spraying result.
How do I shut down my Fusion CS?
Watch this video and learn how to shut down the Graco Fusion CS gun.