Woolwax Pro Undercoating Gun by Kellsport

Worked great. Came with three bottles. Very easy to clean.

Works well. Works better if the fluid is warm. Thins it out a bit.

ok, I get it, I live in the NE, they use salt. this is the third winter with my truck and there is no rust underneath. I spray it 1-2 times a year with this stuff. I had it done once. for 400.00 (the going rate around here) I can buy all the stuff once and do it myself for free from now on. this thing is great for applying, it just take some time to get used to it

I am very happy with this gun, I have used it several times with no issues.

I tried to use this gun with the fluid film at room temp. and it would not flow thru the system. I than heated it up above 115 degrees it things flowed pretty smooth. I jacked my car up in the driveway and wore a good quality air respirator. Because it is air operated I had over-spray travel and coat the whole surface of my car with a very light film which required a thorough hand wash including the windows needing extra attention with window cleaner and several tries to eliminate streaks. My air pressure was about 60-70 PSI with the fluid being preheated and this worked fine. Adjusting the nuzzle spray was fairly quick but I needed to tighten the lock nut with pliers as it wanted to unscrew especially when using the wand. I filled up all 3 spray bottles using a plastic cup to snoop it out of the 5 gallon container and made a funnel by cutting the bottom off a plastic water bottle to control the flow into the spray bottles. (This can quickly turn into a nightmare mess) I also kept the filled spray bottles , capped, in a bucket of heated water..... You must cap them because they will float. I am not going to discuss how I actually did the application because the biggest issues were everything I just described. I was having this done by a shop that was charging about $130 with tax so this is why I decided to DYI. I recently found a Facebook guy who is at $80 and had I know this option would be available I would have gone that route. When its all said and done nobody will do the job as good as a capable owner

bought this to use with my fluid film and it works wonderfully. i set my compressor to 80psi and it sprays well. you do have to unscrew the end to get the spray to come out. the hoses work well to get into the doors, frames, and other crevices the multi way hose works best for the frame and the straight hose works best for the hard to reach spots. whe additional bottles are nice to fill and use after you are dont with the first one. and the casps are nice to store any additional remaining product.

This gun is perfect! I used it to undercoat a 1999 Ford F-250 which has a decent amount of rust already on it. I also used it to totally coat a large dump trailer (except the bed) which has some surface rust. The gun and the wands worked flawlessly without a single issue. I was worried about the application due to some reviews I had read, but I had no problems. I used a 15 gallon, 3.7 cfm air compressor to apply. Again , somewhat worried it wasn’t big enough for the job, but it worked great! I gave it a few “cool down” breaks along the way.... The gun/wands sprayed consistently and evenly. The 360 wand was great for getting above muffler guards, inside of frame supports, inside rocker panels and for above the wheel wells. I also purchased the 5 gallon bucket of the NAS product used for undercoating because it was the best price per gallon. I transferred it to 10 one gallon plastic containers so I could easily shake it up and pour it into the containers which attach to the gun. Worked great. Keep the Fluid Film shaken up throughout the process. I recommend this product to everyone. Don’t go with a cheap sprayer.

I have undercoated about 15 cars and trucks using fluid film with this sprayer. My only complaint is that the plastic hoses tend to kink easily, but they can easily be replaced with hose of the same ID at a hardware store. Ive sprayed fluid film with a few other sprayers and this one is the easiest by far.

I used this to spray Fluid Film and treat a pickup truck. Worked well. The supplied multiple bottles are helpful as you pre-fill them and then spray without interruption.

Price was lowest, service was very timely and as stated, .arrived in good package .I have not used it yet, but I have used a friends sprayer and he recommended this one . I checked at several local auto body and parts supplies stores and they all were much more money for the same thing