Maya Ellison
Removing chrome plating from plastic parts can be done in a variety of ways, including using paint remover, brake fluid, Coca-Cola, oven cleaner, floor cleaner, or household ammonia. Before attempting to remove chrome, it is important to test small areas first, as some methods may damage the plastic or result in an uneven surface. Some products may also require longer exposure times to fully remove the chrome. Additionally, clear coating on top of the chrome plating can make it more difficult to remove. It is also recommended to lightly sand and prime the surface before painting over chrome-plated parts to improve paint adherence.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Household ammonia | Removes chrome plating overnight |
| Castrol Super Clean | Removes chrome and yellow undercoating in about 10 minutes |
| Easy Off oven cleaner | Removes chrome in about 20 minutes |
| Mr Muscle Professional Floor Cleaner | Removes chrome quickly without harming plastic |
| Washing up liquid | Removes chrome but takes longer |
| Paint remover | Non-toxic, water-based gel that removes chrome in 15-30 minutes |
| Brake fluid | Removes chrome but can be messy |
| Coca-Cola | Removes chrome in 24 hours |
| PlastiDip | Paint that covers chrome |
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What You'll Learn
Soaking in brake fluid
First, brush on a light coating of brake fluid onto the chrome-plated areas of your plastic model. Let the brake fluid sit for at least 15 minutes. You may need to reapply the brake fluid a few times, especially for stubborn spots.
After the soaking period, use steel wool or an old toothbrush to gently scrub and rub the chrome-plated areas. Continue until all the chrome has been removed. Be careful not to apply too much pressure to avoid damaging the plastic.
It's important to work in a well-ventilated area when using brake fluid, as the fumes can be strong. Additionally, always wear protective gear, such as rubber gloves, and safety goggles, to protect your skin and eyes from the fluid.
There are alternative methods to remove chrome from plastic models if you're hesitant to use brake fluid. Oven cleaner, for example, can be effective. Spray the oven cleaner onto the chrome-plated areas and leave the model in an airtight container overnight. By morning, the chrome plating should be gone. However, oven cleaners can be caustic and have a nasty smell, so use them with caution.
Another option is to use household ammonia. Soak the chrome-plated parts in a plastic container with a small amount of ammonia overnight. This method effectively removes chrome without damaging the plastic. However, it may not work if the part has been clear-coated.
For a milder approach, you can use a strong detergent like Mr Muscle Professional Floor Cleaner. Soaking the chrome-plated parts in this detergent for about an hour should remove the chrome without harming the plastic. If you don't have access to this specific detergent, ordinary washing-up liquid can also do the job, although it may take a bit longer.
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Using a strong detergent
For those with an ultrasonic cleaner, household ammonia is another strong detergent option. By pouring some ammonia into the cleaner and placing the chrome-plated parts inside, the chrome can be effectively stripped. This process can take around an hour, but it ensures a thorough job. It is important to note that all model car plastic chrome has a clear coat, which gives it a shiny appearance. This clear coat can be more challenging to remove than the chrome plating itself, so a stronger detergent or a longer soaking time may be necessary.
Castrol Super Clean (now known as Super Clean) and Easy Off oven cleaner are also recommended for stripping chrome and, in some cases, the yellow undercoating. These products can usually get the job done in about 10 minutes. Additionally, Liquid-Plumr, a product specifically mentioned for stripping chrome from plastic parts, can be an effective option.
When using strong detergents, always exercise caution and follow safety guidelines. Some products, like oven cleaners, may contain caustic soda, which can be irritant. Therefore, it is important to wear protective gear, such as rubber gloves, to avoid any potential harm to your skin.
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Coca-Cola as a stripper
While there are various methods to strip chrome from plastic models, one suggested method is to use Coca-Cola. The acidic properties of Coca-Cola can be used to effectively remove chrome plating from plastic parts. Here's a step-by-step guide on using Coca-Cola as a stripper for chrome-plated plastic models:
Prepare the Coca-Cola: Start by purchasing a bottle of Coca-Cola, ensuring it is the classic formula known for its acidic properties. You will need enough Coca-Cola to submerge the plastic parts completely, so consider buying multiple bottles if you have larger items to treat.
Protect your workspace: Cover your work area with newspaper or a drop cloth to catch any spills or splashes. Coca-Cola can stain, so it's important to protect your workspace, especially if you're working on a delicate or light-coloured surface. Wear gloves and safety goggles to protect your hands and eyes from the Coca-Cola and any small pieces of chrome that may come off.
Soak the models: Fully submerge the chrome-plated plastic parts in Coca-Cola. Use a container large enough to accommodate the models comfortably. Make sure the Coca-Cola covers all the chrome surfaces you want to remove. If there are intricate details or hard-to-reach areas, you may need to use a brush to gently apply Coca-Cola directly to those spots. Liquid-Plumr may also be an option for this step.
Let it soak: Allow the models to soak in Coca-Cola for several hours. The acidic properties of Coca-Cola will slowly eat away at the chrome plating. Check on the progress periodically to ensure the process is going as desired and give the models a gentle brush with a soft-bristled brush to help loosen any chrome that is starting to lift.
Rinse and repeat: After soaking, remove the models from the Coca-Cola and rinse them thoroughly with warm water. You may need to use a soft cloth or brush to gently wipe away any remaining chrome residue. If there are still traces of chrome left, repeat the process until you achieve the desired level of stripping.
Dispose of the Coca-Cola responsibly: Once you have finished stripping the chrome, properly dispose of the used Coca-Cola. Do not pour it down the drain as it may cause issues with plumbing due to its acidic nature. Dispose of it in a safe and environmentally friendly manner, following local guidelines for chemical disposal.
Using Coca-Cola as a stripper for chrome-plated plastic models is an effective and relatively safe method. It may require some patience and multiple applications, but the acidic properties of Coca-Cola will gradually remove the chrome plating without damaging the underlying plastic. Always exercise caution when handling corrosive substances, and be sure to adequately protect your workspace and yourself.
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Paint remover
There are several paint removers that can be used to strip chrome from plastic models. It is important to test these products on a small, inconspicuous area first, as some may damage the plastic surface.
One option is to use a product specifically designed for removing paint from plastic models, such as the "'Expo' paint remover". These products are generally safe to use on plastic and will not damage the surface. Another option is to use a non-toxic, water-based gel paint remover. These products are easy to use and can be left on the model for up to an hour before scraping off the dissolved paint. However, it is important not to leave them on for too long, as they can make the paint sticky and more difficult to remove.
For more stubborn chrome plating, stronger chemicals such as brake fluid or oven cleaner can be used. Oven cleaner, in particular, is known to be effective at removing paint and chrome plating. However, it may require a second application to get into tight corners. It is important to use caution when using these products, as they may require neutralisation with water and can be messy.
Another option is to use a product called "Chrome Delete", which is specifically designed for removing chrome plating from plastic parts. This product is said to be effortless to use and does not damage the plastic underneath, creating a ready-for-paint surface. Liquid-Plumr is another product that can be used to strip chrome from plastic models.
Some people have also had success using household ammonia to remove chrome plating. This can be done by soaking the parts in a solution of household ammonia and water overnight, which will remove the chrome without damaging the plastic.
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Household ammonia
- Prepare a plastic container: Choose a container that is large enough to submerge the model or the specific parts you want to strip.
- Pour in a small amount of household ammonia: You don't need to use a large quantity of ammonia. A little amount will be effective in removing the chrome plating.
- Soak the model overnight: Submerge the plastic model or the specific chrome-plated parts in the ammonia solution and let them soak. In most cases, the chrome plating will be removed overnight. However, for more recent models with a clear coat, it may take longer.
- Optional: Use a toothbrush to remove small areas of chrome: If there are small crevices or detailed areas where chrome remains, you can use an old toothbrush to gently brush it away.
- Rinse and dry the model: After removing the model from the ammonia solution, be sure to rinse it thoroughly with water to neutralize any remaining ammonia. Then, dry the model before proceeding with any further steps or repainting.
It is important to note that while household ammonia is a safer alternative to some other chemicals, it is still crucial to exercise caution when handling it. Always work in a well-ventilated area and consider wearing protective gear, such as rubber gloves and eye protection. Additionally, be sure to properly dispose of the ammonia solution when you are finished.
Using household ammonia is an effective and relatively gentle way to strip chrome from plastic models. With a bit of time and patience, you can successfully remove the chrome plating and prepare your model for further customization or restoration.
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Frequently asked questions
There are several ways to strip chrome from plastic models. Some of the most common methods include using household ammonia, Coca-Cola, oven cleaner, floor cleaner, or paint remover.
Place the chrome-plated plastic parts in an ultrasonic cleaner, pour in some household ammonia, and let it sit for about an hour. This method can also be done by placing the parts in a plastic container.
First, wash the chrome-plated parts to remove any surface contamination. Then, place the parts in a plastic container and immerse them in classic Coke for about 24 hours.
Painting over chrome-plated plastic parts is possible but not ideal, as the paint may not adhere well and the surface may need to be sanded first. If you do choose to paint over the chrome, it is recommended to lightly sand the surface and apply a primer first.
