TCP Global Air Rust Proofing and Undercoating Gun with Gauge & Suction Feed Cup, 2 Wands - 22 Long Flexible Extension Wand with Multi-Directional Nozzle - Spray Truck Bed Liner, Rubberized Undercoat

Use it for POR15 worked great

Picked this up to spray Corrosion Free (an oil based undercoating gel) on my truck. While it worked, I found it very frustrating to operate due to 3 issues: 1) The trigger has a ton of play, and it often slips off the plunger that actuates the airflow. Especially in the least convenient and comfortable times working on your back under a vehicle. 2) The wands do not have any clamps holding the hose on. This is easy to correct but quite silly that we have to. 3) The jar doesn’t really lock on positively. There’s three posts on the jar and three slots on sprayer. Once everything gets greasy as it inevitably does, the jar will slip past the detents and come loose as you are attempting to tighten it. There is a sweet spot but again, frustrating. But here’s the deal. The nicer gun and wand combo here on Amazon is $100. I guess I’m willing to deal with some poor design and save the $60. Because really, this is used once a year. And aside from the design snafus, it does work. I got rid of the regulator and used the one on the tank set to 90 PSI. Less bulk. I also fitted a swivel connection to improve maneuverability in tight spots. All told, with the tweaks it works okay. But it is a cheap tool and not great. I used it with my small 6 gal pancake compressor and it did take a little longer letting the compressor catch it’s breath between applications. But it goes to show you don’t need something huge and expensive to do this yourself! I am also pleased with the Corrosion Free and recommend it.

you get what you pay for

It uses rivets to hold the can on and they get loose immediately. The psi adjustment is junk youd be better off adjusting it on the compressor itself. The extention wands dont even stay together

This works perfectly for spraying fluid film for under coating just do not buy the suggest bottle that they try to sell with it i had to cut the tup that goes in to the bottle so i could use the bottle dont do what i did just look for the right size bottle

I purchased this gun to spray fluid film on my truck. This gun was great for doing that. I would certainly buy this gun again. However there are a few minor things to note as flaws with the gun. The biggest thing that I didnt like were the wands for getting into tight areas. They could be longer, they retain the curve from coiling the wands to fit in the box. Not really a big deal, however if youre not careful and watchful, you may miss areas that you are trying to cover. And where they attach to the nozzle of the gun, the wands will leak and drip the fluid film out of the back side of the wand where the wand slides onto the barbed tip that screws into the gun body. Not a big deal, but worth mentioning. Even after adding a hose clamp to the wand it still leaked. And the trigger could have been made better. Because where the trigger handle meets the push rod that operates the gun the pushrod in small and the flat spot on the backside of the trigger handle is kind of narrow which can allow the pushrod to slip and not apply the material. And easy fix is to fill that area of the handle with some epoxy to eliminate this from happening. However these couple little issues would NOT prevent me from purchasing again or recommending to someone else to purchase.

Junk

The adjustment is basically useless and the trigger sometimes pops sideways but $35 its not bad for an oil spray gun

This gun worked with the canisters I had on hand. The pattern was good, and it covered the inside of my aluminum boat well.

These cost about half of the main brand but worked surprisingly well. It sprays well out of the extension tubes into the frame and tight spaces. The trigger handle is soft and bends, thus missing the stem. It is best to push it near the hinge, right on top of the stem. I used it with used transmission fluid so far.