Woolwax Pro Undercoating Gun by Kellsport

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

works great

Works very well for applying Fluid Film.

Had no issues using this sprayer, set air compressor to 80 psi on regulator. Works great! Easy to understand and use. Easy to clean with hot water. Used it for applying fluid film to bottom of my Tacoma.

I use this for the pblaster surface shield and I know it sprays way better than fluid film, plus it doesnt stink like fluid film.

I used this gun on the underside of my ram 2500. It did exactly what it was supposed to do. I ran the compressor at 85-90psi and it worked great! A few things to make your job easier, Kellsport sells some longer extensions on their website (for getting deeper into the frame and hard to reach spots), as well as a lid that goes on a 1 gallon pail of fluid film that makes it easier to pour. You are gonna want that for refilling the hopper on the sprayer.

Works great....the spray nozzles alow complete coverage. A must have.

Save a bunch of money using this product with an air compressor. I can now buy any product in bulk and make quick work of oiling my commercial mower, jet ski, etc. Usually, it would 2 or 3 cans of WD-40, now, just need 1/2 a can.

I used to use spray cans of bar and chain oil, with 24 straws. They work for getting in the frame and hidden areas, but this gun is a much better way. It works faster and saves you money because you can use bulk oil, Fluid Film or chain&bar oil which are much cheaper. This gun gives a nice thin coating thats just enough to coat and protect, or thicker if you want. And when youre under there its not dripping all over the place. Heres a recipe: Get a gallon pail of fluid film then mix approx 50/50 in a jug with chainsaw bar & chain oil which is really sticky/tacky. Then mix in some used motor oil, bearing grease and Lucas oil stabilizer. Some people dissolve paraffin+kerosene into a cream and add that too. Im running the gun at 75 psi. The gun comes with a few empty bottles. The way this thing sprays, about 1 bottle will do half of a truck. The hoses are very good for pushing up into frame rails and over top of shock perches, etc . The hoses are not extremely flexible, which is a benefit when pushing them up into the frame. Only thing is, they wont turn anything other than a very gradual curve...sometimes that doesnt work if the frame hole is small and you cant make the turn thru that hole. I wish they provided another hose that is thinner, like 1/4 O.D. so that you could get in smaller holes or smaller places. For these few problem spots I revert back to spray cans and LONG straws. An excellent thing to buy along with this gun is the ShopStraw FS250 . You can cut this straw into a 2 ft section and put it on spray cans of Fluid Film or Johnsens bar and chain oil JON4602 case or 4723 can , or any cheap spray chain/bar oil . You can see all this in my pic . Yeah this gun is a hundred bucks but If you think long run, your frame rusting out usually results in junking the vehicle or spending alot of money and time. A hundred bucks is nothing to prevent your frame and body from rusting out. If youre on the fence, let me save you the time. Just spend the damn money, get this gun. Get a jug of cheap Bar&Chain oil, Fluid Film and used oil. Some nice jack stands also make the job easier. I use Big Red jack stands, they are reasonably priced and are DOUBLE LOCKING. Now go and protect your baby from road salt and rust.

Great for fluid film undercoating!