3M ACCUSPRAY HGP HVLP Gravity Pressure Feed Spray Gun - (16587)

The 3M ACCUSPRAY HGP HVLP Gravity Pressure Feed Spray Gun is designed to spray very high solids coatings such as gel-coat, polyester, epoxies, adhesives and boat bottom marine coatings, etc. effectively. The 3M HGP spray gun includes two 2.0mm and two 1.8 mm replacement atomizing heads and an airflow control valve. The 3M PPS H/O pressure cup with the liners and lids are sold separately. We can no longer say "there is not a spray gun that doesn’t requires cleaning or maintenance".  The 3MTM HG Accuspray gun provides the most important feature EXCELLENT ATOMIZATION with the convenience of 5 to 8 spray outs before the head needs replacement.  When the needle packing seal starts to leak back into the clear fluid tube the head needs replacement. The average head cost per spray-out is $0.50 to $0.60.  With every new head replacement it offers “Like New Gun Performance”!   Specifications: Air Inlet - 1/4” NPS (m) Weight – 11.2 oz. Required atomizing air pressure is 20 psi Required atomizing air volume is 13 cfm   *(Please note that the spray gun does not require a repair kit.  For more detailed information on the spray gun such as parts, setup & maintenance, please contact us).   Note: 3MTM HG and HGP Care and Cleaning Procedures Do not backpressure the gun. There are two Teflon O-rings or seals in the atomizing head. When you slide the atomizing head onto the needle the seals are pushed out towards the front of the gun. This seals the needle passage so the air and fluid going through the gun does not blow back into the gun body. If you back pressure the gun it will flip the Teflon seals so they point back into the gun. When you add fluid and pressure it sneaks past the seals and comes out in front of the handle. The solution is to clean the gun properly. While the atomizing head is on the gun, fill it half way with whatever cleaner is required for your coating. Cover and shake it a bit to loosen any residue. Pull the trigger and drain. Fill the atomizing head two more times with cleaner and drain through the tip by pulling the trigger. Pull the atomizing head straight off the gun. Do not twist as you're pulling. Fill the needle port on the back side of the atomizing head with cleaner and drain. Inspect to make sure there is no residue left in the atomizing head and repeat if needed.