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Ease of use
Undercoating Spray Gun with 1000ml Suction Feed Cup
With no leaks from the gun. It sprays thick products easily, and allows them to avoid using spray cans altogether. The gun sprays undercoats well and is easy to clean with woolwax under coating.
It's worth the money and the gallon size Fluid Film is much cheaper than spray cans.A good investment in both time and materials to apply rust proofing for your car.
- Light weight, sturdy
- Didn't have to warm up, just shake and go.
- With easy-to-read instructions
360° Spray Coverage
for complete coverage without missing any areas
1000ml Snap-lock Pot
360° No-Leakage Desigh
Kristine Schwartzman
Reviewed in the United States on June 3, 2025
I guess it depends on what you use this for whether it works as advertised or not. I used it for spraying fluid film, which is about the same thickness as butterscotch pudding. It worked great with the nozzle, and also the wand with the end hole, but it would not work when using the 360° wand. Adjustments didn't help. The instruction manual does not match the model, so be aware of that.
Dinara
Reviewed in the United States on May 21, 2025
The KCNKCN Undercoating Spray Gun is a great tool for applying rubberized coatings, truck bed liners, and rustproofing agents. With its 1000ml suction feed cup and two wands (360° and straight), it offers both precision and full coverage in hard-to-reach areas.Pros:Large 1000ml cup reduces refill frequency360° wand is excellent for coating inside frame rails and tight spacesStraight wand allows for even surface applicationSturdy construction and easy to clean after useWorks well with most types of undercoat materialsCons:Requires a decent air compressor for best performanceSpray pattern may need practice to perfectIdeal for DIYers and professionals tackling vehicle rustproofing or protective coatings. A great value for the features provided.
MBurr
Reviewed in the United States on March 30, 2025
Cut my teeth on an older truck that I'm not too worried about and am going to use this next a new truck now that I have one under my belt. Used Fluid Film on a nice 70-degree day. I did not use the extender tubes on the test truck but will on the new one to get into the frame.
superchickadee
Reviewed in the United States on April 4, 2025
Haven't actually used it yet but the trigger mechanism seems a little loose. Might not be that way once you actually have it paint going through it but we'll see. Large capacity drum, easy to install it onto the gun.
John L.
Reviewed in the United States on April 3, 2025
This tool has transformed what could have been a tedious task into a smooth and efficient process.The spray gun performs exceptionally well, distributing the undercoat evenly across surfaces. I was able to complete my truck bed in no time, and the results were impressive. The drying time was also reasonable, allowing me to move on to other projects quickly.The adjustable spray pattern and flow control allow for precise application so there's no more mess or overspray ruining my work. I found it easy to dial in the right amount of coating, making for a smooth and even finish every time. After finishing, cleaning the spray gun was straightforward. The design allows for easy disassembly and reassembly, and with a little solvent, I had it cleaned and ready for the next use in no time.
uncle d
Reviewed in the United States on April 22, 2025
this undercoating gun is a big step up from the basic ones — this one has a knob to adjust the flow of undercoating separately from the flow of air. This makes it a lot easier to get an even coat of undercoating without overapplication. I used the gun to apply fluid film, which is fairly thick; it had no problem picking up the fluid film and applying it. the gun is comfortable in the hand, with fingertip control of the spray. the undercoating can be sprayed from the gun in a cone pattern, or you can attach the included short or long hoses to apply the undercoating inside hard-to-access spots. cleanup is hopeless, i just put the entire undercoating gun in a plastic bag when i was done so it's ready for next winter's use.
Compguy
Reviewed in the United States on April 20, 2025
I purchased this sprayer specifically to apply Hercules bed liner to the floor, interior, and under the hood of my classic Jeep Wrangler YJ. The hose is particularly effective for reaching into nooks and crannies, as well as other challenging spots that are often difficult to access. Overall, I found the sprayer to perform exceptionally well; the canister is slightly larger than other sprayers I’ve used in the past, which allows for less frequent refills during application. Additionally, it seems to be constructed with durable materials, suggesting it will hold up well over time.
G. G.
Reviewed in the United States on April 1, 2025
Works good, Like how the canister is a little bigger than the other sprayer I have. Seems to be built pretty well. Will report back if I have any issues.
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