All surfaces to be bonded should be dry, clean, and dust and grease free. To apply Polygrab hold the gun parallel to the work surface and administer a generous coat of adhesive, coverage of at least 80 to 100% is recommended.
Before bringing the two surfaces together ensure that the adhesive is allowed to tack up, i.e. to be able to touch without transference to the fingers. You can now bring the surfaces together using uniform pressure and the work piece can be instantly handled.
Never turn the canister off until ready to connect a new canister; turning it off prematurely could result in the hose and gun becoming blocked.
If the gun will not spray:
Check valve turned on at the canister
Make sure gun wheel turned on
Spray tip clear of any congealed adhesive
Is there a blockage in the hose?