The water-based product can be cleaned from the Blue handled gun with the cleanout adapter provided in the Great Stuff Pro™ Dispensing Gun packaging. Remove the empty can, dispense residue from the gun, screw the adapter into the gun's basket, screw this assembly onto a garden hose or similar source of water.

• Flush 4-8 oz of water through the gun until it runs clear.
• The gun can be left wet, or excess water blown out with 10-20psi compressed air if available.
• Dispose of the rinse water as you would the washings of a latex paint brush. Do not dump into sewer, on ground or in a body of water.
  

The can may be left attached to the Blue Great Stuff Pro™ Dispensing Gun for up to 90 days. Close the adjustment dial and store up-right where the can will not be punctured. To restart, shake vigorously for 60 seconds, dispense a small amount of foam into a trash can until normal bead expansion is observed.  Proceed with normal application

No. Great Stuff Pro™ Gasket is water-based, whereas one-component polyurethane reacts with water to cure. Mixing the two would permanently clog the gun.

The Great Stuff Pro™ Gasket Dispensing Gun has a Blue Handle which matches the Blue Collars on its can. This is a visual check to only use Blue Guns with Blue Collars, and Black Guns with Black Collars.

No, Great Stuff Pro™ Gasket is only dispensed with the special gun identifiable by its blue handle.