Chloe Zhang
Pitting on plastic chrome can be challenging to remove, and the process may vary depending on the severity of the pitting and the specific material. While some sources suggest that pitting can be minimized through polishing, others emphasize that true pitting, which is a break in the surface or missing material, cannot be removed without re-chroming or filling and recoating the affected area. Nonetheless, there are several suggested methods for reducing the appearance of pitting and protecting the surface, including the use of specific polishes, waxes, and coatings.
Hiding plastic chrome pitting
| Characteristics | Values |
|---|---|
| Cleaning products | Metal polish (e.g. Flitz), wax, vinegar, diluted lime solution, semi-chrome polish, steel wool, brass brush, brass wool, aluminium foil, WD-40, P21S multi-surface restorer, Turtle Wax, Mother's |
| Repair methods | Sanding, painting, rechroming, chrome film, brass/copper filling, oven bake treatment, vacuum metalizing, clear coating, lacquer |
| Prevention | Ceramic coating, wax |
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What You'll Learn
Use steel wool and polish to remove corrosion from pores
While it is not possible to completely remove pitting from chrome, steel wool and polish can be used to remove corrosion from the pores and minimise the appearance of pitting.
First, ensure that the chrome surface is clean and free of any dirt and grease. Use soap and water to clean the surface, and then dry it thoroughly. It is important to note that steel wool should not be used on bare chrome surfaces as it can cause scratches. Instead, opt for extra-fine steel wool 0000, which is the finest available and suitable for polishing chrome. Cut a piece of the steel wool and fold it in half. Apply considerable pressure and let the steel wool do its work. If necessary, use a chrome polish, such as Autosol Metal Polish, which has a built-in sealant to protect the chrome.
After polishing, use a good wax to fill in any remaining cracks and pores. Synthetic polymer car waxes are recommended as they last longer than carnauba waxes. The wax will help keep moisture out and slow down future rusting.
While steel wool can be effective in removing corrosion and minimising the appearance of pitting, it may leave behind tiny fibres that can rust over time. To avoid this, ensure that you remove any oil from the steel wool before use by soaking it in soap and water and drying it thoroughly. Additionally, consider using alternative materials such as bronze wool, which is softer than steel wool and less likely to scratch the chrome surface.
For more severe cases of pitting, a recoating process may be necessary. This involves stripping the chrome, removing all corrosion, filling in pits, and then polishing and plating the part. This is a complex and expensive process that may require professional assistance.
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Minimise the appearance of pitting through polishing
While it is not possible to completely remove pitting from chrome, it is possible to minimise its appearance through polishing. However, it is important to note that pitting is a break in the surface or missing material, so polishing can only do so much to improve the appearance.
One option for minimising the appearance of pitting on chrome is to use steel wool and polish. This can remove corrosion from the pores and improve the overall look of the chrome. However, some sources advise against using steel wool, as it may damage the chrome. Instead, you can try using crumpled aluminium foil, bronze wool, or a brass brush with water.
If you are dealing with plastic chrome, there are specific products that can be used for polishing. For example, a gentle paint polish like Meg's Scratch X or an AIO product like Pinnacle XMT360 can be effective. It is important to be cautious when polishing plastic chrome, as some products may cause marring on the soft chrome surface.
In some cases, the pitting on chrome may be due to salt water oxidation. To address this, you can try soaking the affected parts in vinegar for an hour, followed by a diluted solution of Lime Away and water overnight. After soaking, use a low-pile microfiber cloth to dry the surface and apply hard pressure to remove any remaining residue.
If the pitting is more severe, it may be necessary to fill in the pits before polishing. This can be done using a braze or copper, smoothing out the surface before proceeding with the polishing process. However, keep in mind that this may be a costly and time-consuming process, especially for plastic chrome.
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Treat with wax to maintain chrome
Chrome surfaces can be preserved and protected by waxing. However, there are conflicting opinions on whether waxing is an effective method for maintaining chrome. Some sources claim that waxing can cause pitting and destruction of the chrome surface. Others argue that waxing chrome is safe and can help prevent rust and corrosion. It is recommended to use a thin layer of natural or synthetic wax to slow down corrosion. The wax fills in the surface imperfections and creates a barrier that prevents water, salt, and oxygen from reaching the chrome or underlying metal, thus inhibiting rust.
Before waxing, it is essential to clean the chrome surface thoroughly. A non-abrasive polish can be used to remove contaminants that washing may not eliminate. After polishing, a coating of protectant can be applied to delay the effects of exposure to the environment. Additionally, sealants can be used to provide extra protection against brake dust, salt, and road debris, which can cause chipping and rusting.
It is worth noting that chrome is susceptible to pitting if not cleaned properly. Brake dust, for example, is highly caustic and can cause pitting if not removed. Therefore, keeping chrome clean and dry is crucial to preventing pitting and premature aging.
While waxing can provide protection, some believe that sealants or coatings may offer a better moisture barrier and, consequently, better protection against pitting. It is recommended to use a sealant or coating specifically designed for chrome, such as Carpro CQuartz DLX Coating, Klasse AIO, or a non-silicone, water-based Carnauba sap dressing like Zymöl Detail or Field Glaze.
In conclusion, waxing can be used to treat and maintain chrome, but it is essential to clean and polish the surface before applying any products. While waxing may help prevent rust and corrosion, it is not a cure for existing pitting. For extensive pitting, it is recommended to seek professional help, as the process may involve chemical treatments, copper plating, and oven bake treatments.
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Sand out the pits, then use steel wool
Sanding and using steel wool is a good way to hide plastic chrome pitting. Firstly, wash the item using warm water and dish soap. Rinse and pat dry with a cotton cloth. Inspect the pitting. If the pitting or scratches cannot be felt when you scrape your fingernail across them, then you can start with 0000 fine steel wool. Rub lightly in a circular pattern until scratches disappear. Wipe with a damp cloth and pat dry.
If you can feel the scratches or pitting, start sanding with 400-grit sandpaper. Sand in a circular pattern until the bulk of the pitting is removed. Wipe with a damp cloth and pat dry. Then, sand with 800-grit sandpaper. Again, sand using a circular motion and do not use much pressure. Sand until virtually all scratches and pits have disappeared. Wipe with a damp cloth and pat dry.
Rub lightly with 1,000-grit sandpaper using a circular motion. Rub until all signs of pitting have disappeared. Wipe with a damp cloth and then pat until dry. Finally, rub lightly and briskly with 0000 fine steel wool until tiny scratches left by the 1,000-grit sandpaper have disappeared.
It is important to note that steel wool can rust when it gets wet, so be careful when using it on surfaces that will be painted or have a water-based finish. Small pieces of steel wool may break off and cause rust stains. You can prevent this by carefully cleaning the surface with a soft cloth or by running a strong magnet over it to pick up any remaining pieces.
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Recoat the chrome
Recoating chrome involves a few steps, and it's important to take safety precautions as you work. Firstly, set up your workspace in a well-ventilated area, such as a garage, to minimise the risk of inhaling hazardous materials. Be sure to wear long pants, long sleeves, and an apron or coveralls to protect your skin from exposure to chromium and primer. It's also advisable to use a respirator that meets OSHA standards to protect yourself from particles, chemicals, gases, and vapours. Don't forget to protect your ears too, as media blasters can be extremely loud.
Once you're equipped with the necessary PPE, you can begin the process of recoating the chrome. Start by preparing the chrome surface. Wash it with soapy water, then sand it using sandpaper. Begin with a grit of less than 160 to remove most of the particles, and then switch to 320-grit sandpaper to eliminate any remaining marks and create a smoother finish. Ensure you sand with equal pressure across the entire surface for an even result. After sanding, wipe away any residual dust with a tack cloth or a lint-free towel.
Next, you'll need to apply a primer. Use a two-part epoxy primer, and apply it with a spray gun or a sponge brush to avoid leaving brush marks. Allow the primer to dry completely.
Now you're ready to spray on your chosen paint colour. Again, use a spray gun or a sponge brush, ensuring an even application. Let the paint dry according to the manufacturer's instructions, and then decide if you want to add a second coat.
Finally, finish with a clear coat. Spray on a thin, even layer to enhance the shine and protect the paint. And that's it! You've successfully recoated your chrome surface.
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Frequently asked questions
There are several ways to hide pitting on plastic chrome. You can try using a chrome polish like Turtle Wax, or a metal polish like Flitz. You can also try using a cleaner wax like Meg's and Mother's clay bars. If you want to try a more hands-on approach, you can sand the surface and then prime, sand again, and paint.
A quick way to hide pitting on plastic chrome is to use aluminium foil and water. This method has been tried and tested by several people and has shown good results.
A cheap way to hide pitting on plastic chrome is to sand the surface, prime, sand again, and then paint. This method is inexpensive but may not yield the best results.
The best way to hide pitting on plastic chrome is to get the item rechromed. This process is not cheap, but it is the most effective way to restore the item to its original state.
Pitting is a break in the surface or missing material. It occurs when chrome is exposed to air, causing oxidation.
