Undercoating In A Can, Black Wax Coating | 12/12 oz. Case

Undercoating In A Can, Black Wax Coating | 12/12 oz. Case
Undercoating In A Can
12.00 LBS

Undercoating In A Can Black Wax Coating in 12/12 oz. case of aerosol spray cans is a premium wax-based rust preventative sealant that protects undercarriages, and is designed for Commercial and Automotive vehicle use. Coverage is roughly 200 sq. ft. per gallon based on proper thickness of 5 mils dry (6.5 - 8 mils wet). 1 Case of 12 aerosol cans is enough to properly treat the average passenger car vehicle's under-body. 

Wax based undercoating technology has protected United States Military vehicles (MIL-PRF-62218B) and semi-trailer chassis components, exposed to harsh, highly corrosive environments for over 50 years. This premium wax based undercoating is also the ultimate protection for your family vehicles. 

Undercoating In A Can Black, Wax Coating is a "Rust Encapsulating" product meaning it can be applied to existing rust areas, and will deter further compounding effects of rust (Rust Cancer). The coating has been continuously improved over the product lifetime to resist the very harmful side effects modern road salts- magnesium, calcium, and potassium chlorides. This rust inhibiting and sound deadening sealant forms a firm barrier film when applied to metal and wood structures, thereby extending the useful life of the coated surface. This coating exhibits excellent gravel, power wash, and impact resistance. 

The latest revision of SAE J2721, for commercial trucks, requires coatings, intended for chassis components, to be exposed to SAE J400 gravel test, where high velocity stones are thrown at the film of coating, before cyclic exposure to the corrosive salt solutions. Consequently, excellent gravel resistance is vital for long term performance. Get the ultimate protection from UNDERCOATING IN A CAN. 


  • Commercial Vehicles - Tractor Trailers 
  • Passenger Cars and Light Trucks 
  • Utility Trailers 
  • Off-Road Vehicle 
  • Motor Homes 
  • Recreation Vehicles 
  • Or any surface where corrosion is a concern 


  • Prevent Rust & Corrosion 
  • Stop or reduce existing rust from spreading 
  • Sound Deadening to reduce road noise 
  • Remains Pliable to resist Chips and Cracking 
  • Lasts 4x longer than Asphalt Based and Rubberized Undercoating 


  • Dries Semi-Firm, tacky to the touch 
  • Flexible and chip resistant 
  • Self-healing properties 
  • Rust encapsulating 

45 Reviews | Write a Review.

  • 5
    black rustproofing in a can 12 pack

    Posted by craig on Sep 14 2021

    Me and a buddy of nine split the case for touchup ,a couple years ago we split 5 gallion and did are rides we live in the salt zone. we pressured washed under side and left dry a few days used black rustproofing in can out of the 5 gallion did both rides where there was heavy rust scale we didnt get off some of it flaged off we bought this for toouchup for the ease of it being in a can. we were just getting lazy and did not feel like cleaning rustproofing gum and the setup we used.

  • 5
    Great Product

    Posted by Ed on May 28 2021

    Haven't use it yet because of the inclement weather. But I'm a believer this product will be great!

  • 5
    Have not used yet

    Posted by Victor lively on Feb 22 2021

    Have not used this product yet because the weather has been cold & snowing, waiting for nicer weather thank you

  • 5
    Undercoating is impressive

    Posted by C Campbell on Feb 09 2021

    Great stuff. I have another brand thats more expensive 22 bucks per can and decided to give this a try instead because it appears to be identical. In my use case I cant tell a difference between this and the more expensive product. I love the way it works.

  • 5

    Posted by Johnny on Jan 07 2021

    This product is exactly what you'll look for when trying to match and protect the wax coating that chevy and gmc trucks have, por 15 is good but has many steps and mixing coating doesn't go so well , I'll be sure to give 2 cans out of my 12 pack to a friend just to show them this product talks the talk and walks the walk .

  • 5
    have not used the product as of yet, great purchase experience

    Posted by Ed Tillier on Jan 04 2021

    I was looking for a similar product that is used by GM when they build their trucks, this product is exactly what I was looking for, looking forward to installing it soon

  • 5
    Good stuff

    Posted by Op on Dec 25 2020

    Nice product, cans spray well. Undercoating looks good when cured. For the price can’t go wrong for the protection

  • 5

    Posted by Carlton Medeiros on Nov 25 2020

    This product was recommended to me to use on my truck. I couldn't be more impressed with this product. I showed the guys that I work with and they all wanted to know where I bought it so they could buy it.

  • 5

    Posted by Edwin Moore on Nov 20 2020

    Great product. Best I've found

  • 5
    Undercoating in a can 12 ct case

    Posted by charles szeidel on Oct 08 2020

    Customer service and shipping were excellent. I got this to hit everything with after all the repairs I am performing underneath. Hopefully keep those new parts new for a while. I have only tested a small amount so far and it seems very similar if not the same as Cosmoline which is almost 3x as much. After I actually use the product and am able to give a one year review I will follow up.

  • 5
    Undercoat in a can

    Posted by N/A on Sep 24 2020

    This is better then the factory gm coating they out on there frames. Dries waxy and firm but not hard enough to worry about any kind of cracking. And once cured u can do your work with out worrying about it coming off on your hands doing suspension or other undercarriage stuff. Will deff be buying more in the future.

  • 4

    Posted by mk on Aug 10 2020

    sprays well and it is obvious right away that this will protect the vehicle from salt and future rust. It does dry a bit but the wax like consistency will rub off on your hands and I'm guessing it never drys all the way.. hoping this will dry more in the future.. I do recommend this product.

  • 4
    Looks good

    Posted by Duane on Jul 09 2020

    I end up buying 24 cans worked good for an extended cab F150. So far so good.

  • 5

    Posted by Ted on Jun 30 2020

    Amazing product........brought new life to the rusting underside of my Dad's 1994 Siverado.

  • 5
    Under coating in a can

    Posted by Travis on May 23 2020

    Works well and the coverage is good. 12 cans covered my whole truck frame with one can to spare.

  • 5
    Awesome undercoating top self stuff!

    Posted by ken adler on Mar 27 2020

    worked well only had one issue, 11 out 12 cans did great job ,but 1 was a dud. trying many tips but a no go, will need more and will order quart can. need some for touch up. thanks

  • 5
    Great product

    Posted by Gene on Mar 27 2020

    Great company to deal with. I ordered 12 cans and 1 didn't spray. Company replaced it right away. Thanks Gene

  • 4
    I like it have not used it long but think its great!!!

    Posted by Steve joiner on Feb 11 2020

    I like this product very much

  • 5
    Close to OE

    Posted by Phil , #1 Performance Automotive LLC. on Jan 13 2020

    I have been in the collision industry for nearly 3 decades and this product seem to be close to what I see on Ford and Chevy truck frames from the factory. Bought this for an El Camino Restoration. The customer wanted something close to the OE coating, VS.the additional cost of a Full Frame restoration "powder coating". This fit the bill perfectly. Went on easy and cured overnight to a very uniform finish and it seems that you can handle it some without much transfer. Additional coats will be needed to get the proper mills. Haven't experienced the corrosion protection ability over extended time but from the looks and feel of the product I don't have a reason to expect it will not prevent rust or last.

  • 5
    so far so good

    Posted by mel on Dec 23 2019

    it was time for a up grade..the old 93 first gen dodge is a great truck,but a little lean on comfort.after driving 2000 miles to bring my 13 dodge 4th gen home,undercoating in a can was my next step.1 case just about did the truck,went on fine..would have been nice to do it on a lift..have lots of venting,with a direction in the air movement.over spray will land on paint,but ok will wipe off..i did wax the truck before hand...time will tell if it is as good as they say.....mel in montana

  • 5
    2019 SILVERADO

    Posted by DOUG on Oct 23 2019

    Just undercoated my 450 mile 2019 Silverado 1500 Trail Boss. Sprayed all in the rear wheel wells before installing new wheel well liners. This undercoating goes on like spray paint but be sure to have plenty of light because even with a silver colored truck I found that I needed to slow my back and forth motion to get a good uniform coating. This stuff makes the truck smell even newer, it comes in a close second to my favorite cologne...Eau de Octane 87. I have used rubberized undercoating sold at the NAPA stores and they dry hard and crack if its sprayed on to thick...seems capillary action would just pull and hold moisture in... thats bad. 'Undercoating in a can' has a softer waxy texture that goes on wet as its sprayed that appears to be pulled into seams by capillary action before it sets and hardens which seems to be better than other products that I have used that appear to go on like a thick foam. I will be watching to see how well in stays in place... I have had others wear off in a year that needed to be reapplied. The overspray cleaned up easier than mentioned, I read that you can use mineral spirits to wipe off overspray... maybe I read it wrong. Either way it came off very easy by using multiple dry soft clean rags with light/medium pressure. This stuff looks to be what it sayes it is... can't wait for time to tell. YOU GOTTA GIVE IT A TRY.

  • 5
    Easy to use

    Posted by Eric on Oct 14 2019

    Application is easy. Used on enclosed trailer and quad frame. So far I like the product but time will tell

  • 4
    First application and results.

    Posted by Dan on Sep 11 2019

    Product applies similar to others used. Like the black finish. Time will determine durability. Used four cans of twelve purchased. Had an issue with spray nozzle clogging. Corrected by soaking in solvent and reused. Impressed with product thus far.

  • 4
    easy to apply

    Posted by James H on Sep 10 2019

    Order was delivered within a couple of days packaged well was plenty of space to include a can sprayer handle which I do believe they should throw in. Can will spray upside down for a little while and that is a good thing some spots are tuff to reach. Goes on easy and seems to coat very well. Had a small issue with overspray but will come off with mineral spirits, since truck had a fresh wax the day before it did come off a spot or two I missed with the spirits without any problem. I guess time will tell how it holds up, look forward to finding out. As of now I'm going with four stars.

  • 5
    Over-spray Issue

    Posted by jimlewis@epix.net on Mar 28 2019

    I had a concern because I had some over spray after treating my 2014 GMC Pick-up. I was instructed by PSC that it should come off with a little mineral spirits. I ended up using odorless mineral spirits from my local hardware store and it worked perfect. Thank You PSC!

  • 5
    Best product for undercarriage I've found.

    Posted by Twainer on Aug 31 2018

    I have a 2001 olds that I'm determined to keep pristine. Every fall I power wash and clean the undercarriage because that's where the battle against rust starts and I can't fix what's rusted away. This spray goes on more evenly than paint cans and I know since its wax based it's going to seal salt out effectively. This is my 4th year with this undercoating and I've been impressed with how well it performs. The salt spray they put on the roads here will eat an older car in one season, but my olds looks brand new, winter after winter. I don't mind re-applying once a year; in fact, I think its better because tar or paint hides blemishes that need attention. I spent a few hours cleaning the underside, then the next day, I coat everything thoroughly. It's easy to apply and not messy like paint or tar products. Undercoat in a can gets applied anywhere rust might form. It's great stuff.

  • 5
    product review

    Posted by None on Jul 20 2018

    I purchased 12 cans of "Undercoating in a can" and was very pleased with the companies timely delivery of this product. Ordinarily the trigger doesn't come with this size order, but after I requested the part number and price for the trigger a rep from the company contacted me and said they would send me the trigger free of charge. I thought that was very generous of them. As far as the product, it sprayed on nicely and the video they provide on their website was informative. As far as how well this product works for rust protection, I'll let you know in 5 years. Judging by texture when applied it will probably beat no protection at all.

  • 5
    Awesome Coverage

    Posted by Mike M on Jun 19 2018

    This looks great on frames. It dries quickly to a nice matte black finish. Seals out moisture and keeps the frame looking showroom. The spray cans work great with little overspray.

  • 5
    Great application for spray cans

    Posted by Big T on Jun 05 2018

    Got the 12 12oz. Bomb cans to undercoat the southern bed I just purchased for my 2003 supercrew. Applied like the video said and it covered great. I also did the frame rails too. Since it is only a 5 and 1/2 foot bed it took 8 cans so I still have 4 left. I like the fact it is formulated to withstand the winter salt and brine they use to keep the roads clear here in North West Pa.

  • 4
    great coating

    Posted by Jay B on Apr 22 2018

    used 11.5 cans to coat under 8 ft bed and deep into fender wells and the back frame, bed was removed. Had to replace some shock mounts so saved a little for that. Overall happy with application, weather changed so was still a little taky in the morning "sat over night, had to expedite the situation for moving.

  • 4
    Undercoat in a can - Looks good

    Posted by John F on Feb 14 2018

    Overall happy with the application of the product. Covers well. You must shake the cans very well. Suggest you leave them in a warm location prior to use. I used 11 cans on my F150 super crew cab with 5.5' bed. One can clogged a couple nozzles. One can splattered a lot so I kept shaking it frequently. The other 9 cans applied very well. First time using a wax based product. Long term performance TBD.

  • 4
    Satisfied with my purchase

    Posted by None on Feb 05 2018

    This product seems very similar to the product that GM uses on their truck frames from the factory. I can't give a long-term opinion at this point because I've only recently used it. I believe the wax type coating will hold up and this product would be a good touch up material for GM trucks as well as any other vehicle as long as there isn't previous rust.

  • 4
    Good stuff

    Posted by None on Nov 14 2017

    Seems to cover quite well I just applied it

  • 5
    Easy, controlled application with spray can

    Posted by none on Oct 02 2017

    Excellent even coverage. I used 12 cans to complete frame, front end and suspension on 2017 Tacoma. I can't offer a long term review as it was just recently applied, but I'm confident this product will prevent rust as long I don't scuff and scrape it away. I taped off entire exhaust, but this was largely unnecessary as the spray was easily controlled. So far, only one minor complaint. This seems to take a long time to set, making any additional work underneath the vehicle very difficult without removing the fragile undercoating. I'd recommend getting other work complete before applying Undercoating in a Can.

  • 5
    Very Impressed

    Posted by Stephen Rosko on Aug 09 2017

    sprayed the whole frame, front and rear axle of my 2012 F250. Wanted a product that would cover up the ugly look of the rust and also protect everything from corrosion. This stuff went on easy and thick and looks awesome! Very happy with the wax finish and ease of the spray can.

  • 4
    Great Product!

    Posted by Ship on Apr 03 2017

    I just sprayed about half of my restore project,and it went very well so far.The 4 was for the tacky dried surface just hope that it doesn't pickup to much dirt and road grim.But for now it's all Good!

  • 5
    Awesome stuff

    Posted by matt bartson on Mar 27 2017

    Went on easy and dry in 4 hours. Very tough stuff clings and stays on. I did my ram truck in 2 hours saved alot of money.

  • 5
    looks good, Time will tell

    Posted by None on Jan 30 2017

    This sprayed on well and looks good. I hope it holds up good in Maine winters.

  • 5

    Posted by bud on Dec 05 2016

    better than zebart

  • 5
    Undercoating in a Can.

    Posted by Candy Man on Oct 24 2016

    This stuff is great, followed instructions and applied thin 3 cover sprays, product dried quick and looks like a professional did it. Thx for an awesome product!

  • 5
    Undercoating In A Can - Application Review

    Posted by n/a on Oct 19 2016

    Be sure to wear a respirator, protective clothing, and goggles that seal to your face. Loose fitting eye protection does not help the airborne mist it creates. If indoors, use plenty of ventilation. I ordered a case of spray cans. Shipping was super fast! I pressure washed under my truck the night before and let dry. Cans need to be shaken at least 30 seconds before mixing ball inside can starts to actually move and mix the paint. I would continue to shake another 30 secs to a minute after before use. Take your time, but don't let the can sit too long without cleaning the nozzle upside down after spraying, because it may clog. This stuff is pretty thick but sprays nice. Use as directed with about 3 swipes in any area for a good coating. Dries to a nice firm but somewhat pliable coating. I await the Maine sand & salt, i think this is going to do great to protect my frame!

  • 4
    product appears as advertised

    Posted by n/a on Oct 11 2016

    The true test of the product will appear over time. So far, I'm happy with the results. Ask me in a year how it held up and I'll give you a better evaluation.

  • 5
    Great Value

    Posted by James J Cotey on Sep 14 2016

    So far so good. Easy to apply.

  • 5
    Purchased a case and all the cans worked as they should have no complaints

    Posted by Rob M. on Aug 01 2016

    Great product and service thank you

  • 5
    Best Under-Coating

    Posted by Scott W. on May 31 2016

    I recondition a lot of cars and this product sprays on so nice and looks good for years. Plus to get a waxed based under coating at this price, you can't beat it.

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