6 Best Chassis /Frame Paint For Truck

If you get the best chassis/frame, paint for your truck, you are assured that your truck will be kept together because it will keep the rust away and extend the life of the chassis. It is also important to know the steps you need to take before you apply the paint. Though you will come across instructions by some manufacturers that you can apply your paint directly on the already rusted frame, I think cleaning the frame thoroughly and preparing the area before using the paint is necessary.

Product Review

1. POR-15 45404 Black Rust Preventive Paint

It is a product that is likely going to protect your truck body from rust. It is a rust preventive product which has a semi-gloss finish and shiny black color. It is available in a one-quart container and I am sure that this will be enough to cover the chassis of your truck. If there is some rust on your chassis already, the product will be able to seal the area and prevent the rust from advancing. I would advise you remove the rust before doing the paint job in order to get super paint results.


  • It prevents rust from recurring by protecting the metal frame from further exposure to moisture.
  • Its performance is high
  • Once it dries, it forms a great rock hard nonporous finish which won’t chip peel or crack.
  • Available in black color.
  • It is affordable


  • The can is hard to open
  • Poor packaging

2. Magnet Paint Black Chassis Saver GL

It is specially formulated to permanently stop the corrosion of trucks and automobiles without having to use topcoats and primers. All you need to do is to apply it directly over a tightly adhered rust after cleaning the surface with a wire brush or a sander to remove all the loose scale and particulate rust.

You will obtain maximum results by sanding. After you apply, it will form a rock hard yet a great finish that is nonporous and glazes like which will not crack at the end of the day or peel, chip or flake. It is not affected by gasoline, road salts, diesel fuel, battery acid, oils, solvents, hydraulic fluids, corrosives, or chemicals.


  • Easy to apply
  • Leaves the surface with a glaze like nonporous finish
  • Unaffected by gasoline, road salts, diesel fuel, battery acid, oils, solvents, hydraulic fluids, corrosives, or chemicals
  • Stops corrosion on trucks permanently
  • Good value for money


  • Produces bubbles during application
  • It takes a lot of time to dry

3. Rust Bullet Truck Kit 192

It is a paint for the chassis which is a high solid, single component and VOC compliant. You can use it for underbody of your truck and it could just be the solution to stop the truck and automotive corrosion without you having to use topcoats or painters. You will use a one-step unique process with two united patents.

When applying, you will do it directly over the rust (but I prefer a cleaning process first) and the UV resistant paint will not crack or fade. It is a one-step process that is simple, with little preparation required.

You will use a brush, roll or spray on when making the application. One gallon can cover up to 400 square feet per coat, but this will depend on the porosity and texture of your chassis. I would recommend a minimum of two coat applications.


  • It can be applied to various parts of your truck including the chassis, frame, floor plans, suspensions, undercarriages, and rocker panels.
  • It is a professional grade automotive rust inhibitor paint.
  • Apply directly on the rust
  • It doesn’t fade easily
  • Easy to apply


  • Poor packaging
  • The instructions not clear

4. KBS Coating 4401 Rustseal

It is a superior one part, high solids content, ready to use a coating that will likely prevent corrosion and rust in your truck chassis. When it is exposed to moisture, it hardens. It is also impervious to most of the chemicals and road salts. When you apply, it flows out to be beautiful, tough ceramic-like coating, rock-hard which is tough to scratch or chip and it will not peel or crack. It might be one of the most permanent cost effective solutions which you can use to stop corrosion and rust any place where it is a problem, be it at the farm, home, industry, automotive, and fleet. I think it might be an enhancement that lasts. When you apply it on your chassis, air, and water are locked out and thus, no oxidation, which is necessary for rust to take place, cannot take hold. It can withstand a temperature of up to 600F. It is chemical resistant and highly abrasion resistant.


  • Prevents penetration of water vapor, oxygen, and moisture and thus, stops rusting.
  • It is strengthened by exposure to moisture.
  • It is nonporous
  • It is ready to use.
  • It is impervious to chemical and road salts
  • Lead-free
  • VOC compliant
  • Compatible with all paint systems.


  • The color is not pleasant
  • Not good value for money as it is very watery

5. POR 15 45006 6PK Rust Coating

If you are looking for a product to keep rust from destroying your chassis, boat, car, or bicycle, then this could well do the job. It is available in a black color and thus, you can paint over existing rust spots on metal surfaces.

Once you apply and the coat dries up, it will become non-porous and hard, blocking any further damage from moisture. It comes in a set of six cans with each weighing four ounces and thus, great for small projects. You don’t need any top coating unless the painted surface is going to be exposed to sunlight.


  • It prevents rust.
  • When applied with a brush, it is self-leveling
  • It is a non-porous coating.
  • It is completely waterproof.
  • It is impact resistant, abrasion chemical, and stain.


  • Each of the six cans is independently priced.
  • Tough to prepare and apply

6. Gloss Black Truck Paint for Chassis and Frame

It is a chassis saver, designed to extend and protect the durability of the automotive chassis. It is good at preventing and eliminating rust due to its density, acting like a 2 in 1 paint. You will have to do some preparation such as brushing or scraping the rust before you apply it to enhance its efficiency.

It features a rust stopping technology, which when you apply, the chassis is bound to the paint and thus no room is left for air to come in contact with the chassis. The existing rust will be suffocated as there is a cut down on the supply of oxygen supply and thus, no future oxidation can take place.

It is a paint that is going to prevent rusting. You don’t need any activators or catalyzers when applying it. It dries very fast thereby curing the rust very fast and thus once you apply, leave it to dry on its own. You will need to apply only one layer and the job will be done.


  • Durable
  • Can be applied on several occasions
  • Value for money
  • Easy apply
  • Resistant to rust wrinkling and peeling.
  • Decent, dense sealing capacities.


  • Peeling and adhesive problems
  • You have to buy the paint and the spray separately.

Why Buy the Paint for the Chassis and Frame of Your Truck

There are several reasons why you need to get an anti-corrosive paint for your truck’s frame and chassis. While many manufacturers of truck and automobiles do a great job when making the vehicles, over time, the paint tends to lose its quality. Due to that reason, after the original paint has lost its merits, you will need to apply an anti-corrosive paint to the chassis and other body parts of the truck. The reason is that, when you apply it, you will be able to prevent damage and oxidation to the materials. Rust spreads very fast and it is important that you act fast, immediately you notice it. Even tiny spots can destroy the frame, causing it to become irrelevant.

Factors affecting the Choice of Paint

There are several factors which affect the type of paint you will decide to buy which include:

1. Price

You will have to choose a paint depending on your budget. There are some paints which can do the job and they are affordable while others are expensive. Mostly, the price is affected by the quantity rather than quality.

You can buy the smallest quantity depending on how much you have for the paint job. You will also have to look at buying the anti-corrosive paint as an investment rather than an expense. When you buy it, it is going to make your vehicle more durable and resistant to rust or other chemicals and conditions.

2. Properties

You will have to consider the advantages and disadvantages of the paint and what it can do. Factors like if it is UV resistant and if you really want a UV resistant paint or the part you are applying to like the chassis is not exposed to direct sunlight and thus, no need for UV resistant protection.

You will also have to consider the density of the paint. There are some products which are very dense and you will need to apply only one protective layer while others you will have to apply more than one in order to get great results.

It will also depend on which weather condition you live in. If you stay in an area that has a lot of humidity, then you will have to get a paint that will deal with the humidity better than the rest. The more factors you consider, the narrower your list.

3. Durability And Versatility

Are you looking for an all-round anti-corrosive paint or a specific chassis paint? If you are looking for a paint which you can apply on various materials or a specific one, then you can choose from among my list of top 6 paint.

You will also need to consider the usability of the things which you want to protect, in this case, the frame and the chassis. Find out if you use the frame and the chassis frequently. Is your truck exposed to sunlight, heavy rain or snow? If that is the case, you will need to select a paint according to usability. Not all paints offer the same durability.

How to Prepare for the Paintwork 

The following are the steps you need to take before you can apply your paint. In order to come out with the best results, you will need to, first of all, prepare the surface which can be done in three main steps.

  • You will have to remove the rust and dust from the surface. You can use a brush or a sandpaper which will remove pretty much anything which is likely to ruin the paint job. You will have to remove any liquids on the surface and ensure that it is dry.
    Use a quality cleaner by mixing it with water and applying it to the surface and scrubbing it for about five minutes or even more depending on the intensity of the rust. If the surface you are trying to clean is too dirty, you can apply a diluted version of your cleaner and leave it for at least 24 hours before doing the cleaning. The water you are mixing with should be warm as this will be able to activate the cleaner’s power.
  • Once the surface is clean, you will have to apply a rub of your choice to prepare the surface as it will aid in removing the rust. Though the paint I have suggested can be used for the rust, I don’t recommend it, for it is likely going to ruin the paint job (my take).
    You can apply the rub as much as you can depending on the surface size and the density of the rust. You don’t have to let the surface dry. Keep applying the rub until all the rust is removed completely. You don’t have to wait until the surface is rust-free because the rub should be one that can do an excellent job of protecting the surface from oxidation in the future.
  • You will then apply a rust seal of choice which will be able to cover any holes that exist in the material. It shouldn’t be used in humid conditions because it can entrap humid air and later on cause bubbling which in return, can affect the paint job poorly. While you are using a rust seal, ensure that you protect yourself and clean it out before it completely dries. You will have to shake it thoroughly before you use it.


Reviewing what I consider to be the best chassis frame, paint for the truck was a tough thing to do. It is important to bear in mind that, painting is a very delicate activity and selecting the paint that is right for your truck, the one that will work well for you, is not easy.

You will need to invest some time and do a lot of research before you settle for the one that might be the best and reading this article might be helpful for you. Consider all the information I have mentioned here to be important, especially that part of the preparation of the paint so that your paint job comes out smoothly.
At the end of it, I hope that this article has helped you to realize the importance of the anticorrosive paint. Avoid having to re-purchase things due to rust and invest in quality paint. 

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