Undercoating In A Can, Black Wax Coating

Undercoating In A Can, Black Wax Coating
Undercoating In A Can

0.00 LBS

Undercoating In A Can Black Wax Automotive Undercoating

Undercoating In A Can, Black Wax Coating is a premium wax-based rust preventative sealant that protects undercarriages, and is designed for Commercial and Automotive vehicle, trailers and equipment. Coverage is roughly 200 sq. ft. per gallon based on proper thickness of 5 mils dry (6.5 - 8 mils wet). A single case of 12/12oz aerosol cans is enough to properly treat the average passenger car vehicle's under-body. Larger SUV's and Trucks we recommend 2 cases of 12/12oz aerosol cans for proper coverage. 

A new addition to this line is the cost effective 12/32 oz QUIK CHANGE Quarts that utilize our QUIKCOAT EZ Sprayer. With this size option, 1 case provides complete coverage for most passenger cars and light trucks.

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 


  • Military Specification MIL-PRF-62218B Approved 
  • 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 

105 Reviews | Write a Review.

  • 5
    seems good , went on easy and coverd well. time will tell if it works.

    Posted by ted carley on Nov 24 2021

    the next guy will have to see about its effectiveness as i totalled the truck afer application. dang deer.

  • 5
    stays where you spray it

    Posted by DAVID A HOFFMAN on Nov 08 2021

    i heat up some, so it sprays out a little better, and works great seems to hold up good

  • 4
    PSC undercoating / oil based

    Posted by John Henry on Oct 14 2021

    Went on extremely well, but after 3 days it was still wet to the touch.

  • 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
    Undercoating in a can

    Posted by Bob on Jul 12 2021

    Great product all we use 22 tractor/trailers Great service

  • 5
    Rustproofing in a can

    Posted by Craig Breiterstein on Jun 22 2021

    I take care of a fleet of f150 pickups, this rustproof holds up real well on truck with no rust - will last 3-4 years trucks with rust cleaned well then used a once a year touch up is all that's needed. some of the trucks travel over 50 thousand miles a year in all weather and mud.

  • 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

    Posted by Joyce Miller on May 24 2021

    Bought this undercoating for my husband to use on his Freightliner Fl70. He was very pleased with this product, it does just what it’s supposed to

  • 4
    Great Product!

    Posted by W. J. on Apr 16 2021

    This stuff works great! It is misleading in the sense that this stuff is too thick to put into a spray gun, so I went with the hand brush instead. The final product is still great though! Be careful since the coating gets on your hands even when its all dried up and cured, but thats to reassure you that it is doing its job protecting against rust.

  • 5
    Fight the Salt!

    Posted by Jake W on Mar 24 2021

    I've used this product for about a year now, previously used bar & chain oil/diesel fuel. This stuff sticks so much better. Highly recommend.

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Safety Data Sheet (Aerosol)
Safety Data Sheet (Non-Aerosol)
Product Data Sheet (Aerosol)
Product Data Sheet (Non-Aerosol)

Due to these products being hazardous, an additional shipping charge of $25.00 is automatically added to smaller "Ground Shipments". If you can order any combination of products that makes your total cart weight over 150 lbs. (which is considered "Freight Shipment"), this additional fee is waived. This can equate to considerable savings on shipping.

Sunoco Race Fuels is offering a Free Drum Pump with the purchase of a 54 Gallon Drum of Sunoco E85-R 99 Octane Race Fuel.
To add the free drum pump, first add the '54 Gallon Drum' to the cart, then click the blue 'Add FREE Drum Pump' button.

By entering your amount in the “Quantity” field, the price will automatically reflect the bulk discount below.