Car Rust Protection – 2020 Buyer’s Guide

Brandon Trenton

Updated on:

car rust on a blue car
Armor Shield IX
BOESHIELD T-9 Rust & Corrosion Protection
WD40 Specialist Corrosion Inhibitor Spray
AvalonKing Armor Shield IX DIY Kit
BOESHIELD T-9 Rust & Corrosion Protection/Inhibitor and Waterproof Lubrication, 12 oz.
WD-40 Specialist Corrosion Inhibitor, Long-Lasting Anti-Rust Spray, 6.5 OZ
Armor Shield IX
AvalonKing Armor Shield IX DIY Kit
BOESHIELD T-9 Rust & Corrosion Protection
BOESHIELD T-9 Rust & Corrosion Protection/Inhibitor and Waterproof Lubrication, 12 oz.
WD40 Specialist Corrosion Inhibitor Spray
WD-40 Specialist Corrosion Inhibitor, Long-Lasting Anti-Rust Spray, 6.5 OZ

Rust can wreak havoc on your vehicle and cause serious harm if ignored. Not only does rust degrades your car’s appearance, but it also damages the entire body of your car and increases the wear and tear rate, which ultimately reduces the value of your vehicle. 

However, there is a solution that can help you avoid this problem altogether – car rust protection. By investing in a quality rust prevention solution, you keep your car safe from oxidation, corrosion, and rust, as well as maintain your vehicle’s appearance.     

Since there’s an abundance of car rust protection products available on the market, it’s important to choose the one that’ll be a perfect fit for your vehicle. To make things easier, we decided to put together a list of the ten best products out there that will surely satisfy your needs.  

Let’s take a look! 

What Are the Benefits of Car Rust Protection? 

There are four major benefits of using a reliable rust prevention solution:

1) Saves You Money 

Rust can cause serious damage to your vehicle and the removal process tends to get very expensive. That’s why it’s best to nip the problem in the bud before it becomes a financial challenge that’s difficult to handle. Using a quality rust protection solution allows you to rustproof your vehicle and keep the rust from forming in the first place.  

2) Maintains the value of your car

Rust causes deterioration of your vehicle’s surface, which leads to a decrease in its overall value. Keeping your car rust-free and looking brand new will help you maintain the resale value of your vehicle. 

3) Reduces wear and tear 

Protecting your car against rust slows down the process of wear and tear, which results in extended service life and enables your car to run smoothly for a prolonged period of time. 

4) Reduces Accident Rates  

Using rust protection products ensures that all parts of your vehicle are kept in check and are working properly, which improves safety, reduces mechanical failure, and minimizes the chances of road accidents. 

What Are the Different Types of Rust Protection Products? 


Just as the name suggests, inhibitors are engineered to prevent rust from forming on all types of metal surfaces. They are designed to inhibit the process of oxidation, which leads to rust formation. Rust inhibitors should be used as a preventative measure, especially in wet environments that need serious rustproofing, and they should be applied to surfaces that are not affected by rust. 


Removers are designed to be applied directly to the rust-affected areas and they are powerful enough to remove the existing rust. By bonding with rust, these products create a substance that becomes easy to rinse off with nothing more than a little soap and water. What’s more, rust removers can be used as inhibitors as well. 


Primers are specifically designed to form a lasting bond between the surface they are applied to and the paint that comes on top. They enable you to paint directly over the treated surface and usually have great rust-prevention properties that help keep the surface well-protected and rust-free.

The Best Car Rust Protection Products For 2020 

Explaining the Ranking System

When evaluating car rust protection products we decided to focus on the following four elements: 

1. Product quality

The quality of the product is one of the most important aspects of any car care product designed to prevent rust. It determines the level of performance, effectiveness, and longevity of the product in question, as well as its ability to prevent oxidation, rust, and corrosion. These properties greatly depend on the quality of the ingredients used, their ratio, the effectiveness of formulation, as well as the technologies used in making the product.   

2. Presentation

The way a product is designed, the type of packaging it uses, together with colors and materials used when making the bottle reveals a lot about the product itself, as well as the brand behind it. 

3. Customer feedback

Nothing can tell us more about a product than customer reviews, both positive and negative ones. If a significant number of users expresses their satisfaction with a certain product, it’s probably worth trying it out.   

4. Overall value 

When all of the above-mentioned aspects are combined with the product price we can determine the actual worth of every product.  

Please note that every price mentioned in this guide is the one we were able to find at the time of writing this review. Visit the individual product pages found below to find out the current prices. 

Armor Shield IX Nano Ceramic Coating

1. Armor Shield IX – by AvalonKing
  • Wraparound tread gives a rugged look and increases puncture resistance
  • Deep two-step sipes extend tread life and increase performance on wet roads
  • Tiered side grooves for more predictable cornering.Max Single Load(lbs):2601
  • 7-8% wider footprint than the competition for increased road contact and grip
  • 4 ply construction

Boeshield T-9 Waterproof Spray Lubrication

2. BOESHIELD T-9 Rust & Corrosion Protection
  • Boeshield Is Great For Use In Marine, Bicycles, Automotive, Tools, Rv'S, And Aviation
  • Loosens Rusty And Corroded Parts And Is Safe On Paints, Any Metal Surfaces, Plastics, And Vinyl
  • Flushes Out Dirt And Old Lubricants, Displaces Moisture, And Penetrates Moving Parts
  • Dries To A Thin, Waxy Film That Clings To Metal For Months

WD-40 Long Term Corrosion Inhibitor Spray

3. WD40 Specialist Corrosion Inhibitor Spray
  • Coats metal parts to lubricate and protect against rust and corrosion by blocking out air and moisture. Protects for up to 2 years when used indoors and for up to 1 year when used outdoors
  • Recommended for preventative maintenance or for protection in corrosive environments, such as hot and highly humid or cold, and winter atmospheres
  • Included straw creates a precision stream of lubricant for controlled application and fastens to the notched cap for secure storage
  • Non-drying lubricant does not run and says where you spray it. 50-state VOC compliant and NSF Category A7
  • WD-40 Brand believes in creating high-quality products that will not fail in extreme conditions. Professionals rely on WD-40 Specialist to get the job done right

VHT Rust Convertor 

4. VHT Rust Convertor
  • ANTI-RUST PAINT – VHT Rust Convertor Spray Paint Can destroys rust on contact. It sprays on clear and turns to a black metal-protecting coating to prevent future rust from forming.
  • SANDS EASILY – This VHT spray paint is specifically formulated for application over metal, body filler or fiberglass. Rust Convertor rust resistant paint sands to a smooth, even finish.
  • FAST DRYING, DURABLE FINISH – Featuring an easy-to-use spray nozzle, this automotive paint ensures maximum coverage for a long-lasting finish. Allow 24 hours of dry time before applying top coat.
  • IDEAL USES – VHT Rust Convertor is a spray paint for cars, trucks, SUVs and more. This high temp spray paint is ideal for use on rocket panels, paint blisters and all metal surfaces.
  • VHT PAINT – VHT provides extreme heat resistance and race inspired coatings for vehicle enthusiasts looking for ultimate protection and performance.

Permatex 81849 Rust Treatment

5. Permatex Rust Treatment
  • Easily applied, just brush or spray it on
  • Destroys rust on all automotive applications
  • Within minutes, rust disappears and a durable black polymer coating develops
  • Tough coating serves as an excellent protective primer that you can paint over
  • Specially formulated to be used with body filler and fiberglass

Corroseal Rust Converting Metal Primer 

6. Corroseal Water-Based Rust Converter Metal Primer
  • Paint, prime and convert rust in one step - water based rust converter with latex metal primer
  • Restore metal surfaces, extend life of metal equipment by protecting it from rust and corrosion
  • Non-flammable and non-corrosive, water-based formula cleans up with just soap and water
  • Easy to apply - brush, roll or spray; apply at 8-10 mils wet for 200-250 sq ft per gallon coverage
  • Use for all marine, automotive, general household and industrial applications

Rust Bullet Automotive Anti-Rust Paint

7. Rust Bullet Automotive Anti-Rust Paint
  • PATENTED - Awarded two United States Patents
  • LOW PREP - Little to no prep required! One step, multiple coat process, apply directly over surface rust or clean metal.
  • DURABLE - UV resistant - no topcoat needed - will not fade or crack.  Does not contains: zinc, chromates, or other heavy metals
  • EASY APPLICATION - Apply with brush, roller, or spray
  • MADE IN THE USA - Rust Bullet, LLC was formed February of 2001 in Reno, Nevada, where our Corporate Offices still operate.

3M Professional Grade Rubberized Undercoating

8. 3M Professional Grade Rubberized Undercoating
  • Multi-purpose undercoating may be applied to cars, truck and recreational vehicles
  • Sound deadening properties help reduce road noise
  • Asphalt-based product is excellent for wheel wells, quarter panels, interior fenders, under the hood and more
  • Protects the undercarriage of vehicles from rust and abrasion
  • Aerosol dispenser allows for easy spray-on application

CRC Heavy Duty Corrosion Inhibitor

9. CRC Heavy Duty Corrosion Inhibitor
  • EFFECTIVE PROTECTION: Flexible corrosion inhibitor that protects and preserves metal surfaces; electrical connections; and engine components that are subjected to salt spray and high humidity.
  • HEAVY DUTY: Provides extended corrosion protection indoors or outdoors.
  • APPLICATIONS: Electrical connections (connections must be made first); engine components; equipment storage; fasteners; motors; salt spray protection; shaft; spindles; steering & throttle linkages.
  • PRODUCT SPECIFICATIONS: Heavy Duty Corrosion Inhibitor is available in a 10 wt oz aerosol can.
  • CRC INDUSTRIES: A market leader that offers impeccably designed chemical solutions to maintain; protect and repair different marine; heavy-duty motor vehicles; industrial-grade engines; household tools and electrical equipment.

Rust-Oleum Automotive Rust Reformer Spray 

10. Rust-Oleum Automotive Rust Reformer Spray
  • Use on any rusty, metal surface to Instantly convert rust to a flat black, paintable surface that is protected and prevents future rust
  • Oil based formula creates a bond with rusted surface that can be easily painted
  • Dries tack free in 20-40 minutes, allow 24 hours before applying topcoat
  • Unique formula transforms rusted surfaces saving time and effort sanding rust all the way down to bare metal
  • Any-angle spray technology allows the can to be sprayed in any direction, even upside down


Considering all the advantages, a quality car rust protection solution is a car care essential that each vehicle owner needs in their arsenal. It will certainly save you a lot of money and ensure your car is well-maintained and working properly at all times. Our Buyer’s Guide lists only the most reliable products on the market, so no matter which one you choose, you’ll surely get your money’s worth.