No one thinks about it often, but a license plate goes through a lot of dirt and grime. Dirt, road salt, and moisture build up over time, making it look worn out and even harder to read.
While these dirty license plates take away the show off your car, you can also be fined for not getting your license plate cleaned. According to City News Toronto, drivers have been ticketed for plates that are too dirty to read, with fines reaching up to $110. Law enforcement in some states like Ontario in Canada or California in The US views an uncleaned plate as a visibility issue, and failing to clean it could land you with an unnecessary ticket.
To save you from these unusual tickets and to make your car license plates brand new, here are some easy quick steps to clean license plates.
Tools You’ll Need
Essential Cleaning Supplies
- Soapy warm water
- Microfiber cloth or sponge
- Soft-bristle brush
- All-purpose cleaner
Rust Removal and Protection Products
- Naval Jelly for rust removal
- Rubber pencil eraser for surface oxidation
Recommended Protective Coatings
- High-quality Car polish
- Petroleum jelly or anti-seize compound for screws
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How to Clean License Plates
Step 1: Removing the License Plate
Before you start, use a screwdriver or wrench to remove the screws securing the plate. If they are rusted, apply WD-40 to loosen them.
Severely corroded fasteners may need to be replaced to ensure a secure fit when reattaching the plate.
Step 2: Washing Away Dirt and Grime
Soak the plate in warm, soapy water for at least ten minutes and clean the surface dirty with a soft sponge or a clean microfiber cloth. If grime is stubborn, an all-purpose cleaner such as Fantastik can help break it down without damaging the plate.
Many auto detailing professionals recommend Dawn dish soap for a gentle yet effective clean.
Step 3: Removing Stubborn Stains and Adhesive Residue
Goo Gone or a dedicated sticker remover can be highly effective for sticky residue left by registration stickers or other adhesives.
Detailing professionals on auto detailing forums also suggest using a hairdryer to gently heat the adhesive before peeling it off to avoid damaging the plate’s surface.
Step 4: Removing Rust and Oxidation Effectively
- For light rust: Light rust can be addressed by rubbing the affected area with a rubber pencil eraser or applying WD-40.
- For moderate rust: Use Bar Keepers Friend or CLR with a soft brush.
- For severe rust: Severe rust is best treated with Naval Jelly, which should be left on briefly before rinsing. Avoid overuse as it can strip the paint.
Note: Be careful while using the chemicals as they are strongly acidic and can burn the skin.
Step 5: Polishing and Protecting the Plate
Once the plate is completely dry, apply a layer of high-quality car wax or polish. This protective barrier helps prevent road debris from sticking and shields the surface from UV damage.
A clean microfiber cloth will help buff the wax for a smooth and even finish.
Some detailing professionals also suggest a light coat of WD-40 for added protection, especially in areas with high humidity.
Step 6: Reinstalling the License Plate Properly
Before securing the plate back onto the vehicle, inspect the screws. If they show signs of rust, replacing them is a good idea.
To prevent future corrosion, apply a small amount of petroleum jelly or an anti-seize compound to the threads before tightening the screws securely but not excessively.
What Not to Do When Cleaning a License Plate
Do not use harsh chemicals on graphic plates
Some license plates have printed graphics that can fade with harsh chemicals. Avoid ammonia-based cleaners on modern plates with graphic designs.
Do not over-scrub the plate
Too much force with abrasive materials can strip paint. Use gentle, circular motions and soft-bristle brushes to prevent wear.
Do not ignore waxing
Skipping wax or protective coatings can cause rust to return quickly.
Failing to apply wax or protective coatings after cleaning can allow rust to form again quickly. Regular maintenance helps extend the lifespan of the plate and keeps it looking new.
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How can I prevent my license plate from rusting in the future?
Applying a layer of car wax or a light coat of WD-40 every few months creates a protective barrier against moisture and corrosion.
Can WD-40 be used to clean a license plate?
Yes, WD-40 is useful for removing light rust and grime. However, it should be wiped off completely to prevent buildup over time.
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