Ethan Clarke
Plastic is a common material in modern vehicles, used for everything from headlights to bumpers and interior trim. However, plastic surfaces in cars are prone to scratches, scuffs, and sun damage, which can negatively affect a car's resale value. To treat hard plastics on vehicles, it is important to first clean the surface with a mild soap or dedicated plastic cleaner, being careful not to scratch the plastic. Once the surface is clean and dry, there are several methods to restore the plastic, including using a heat gun, applying a restoring product, or using a plastic scratch polish kit.
Characteristics and Values for Treating Hard Plastics on Vehicles
| Characteristics | Values |
|---|---|
| Cleaning products | Mild soap, laundry detergent, plastic auto cleaner, car wash soap, protectant, plastic trim restorer, olive oil, boiled linseed oil, WD-40, trim restoration product |
| Tools | Soft cloth, soft-bristled paintbrush, soft-bristled toothbrush, cotton swabs, sponge, car wash mitt, soft-bristled brush, heat gun, fine sandpaper, microfiber towels, polishing/buffing pads |
| Techniques | Dusting, polishing, washing, scrubbing, drying, applying degreaser, restoring dull plastic, treating stains, removing scratches |
| Considerations | Test products in an inconspicuous spot, avoid harsh brushes, heat plastic with caution to avoid warping or damage, clean regularly |
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What You'll Learn
Cleaning hard plastics
The first step to cleaning hard plastics in your car is to declutter and remove any personal items, rubbish, or debris. This includes cup holders, consoles, and door pockets. Once you have a clear space, start by gently dusting all surfaces with a microfiber cloth to remove the surface layer of dust. Pay special attention to areas with sensitive electronics or screens.
Next, use a vacuum to remove any larger debris, especially in crevices and hard-to-reach spots. You can use vacuum tool attachments, such as brush heads, to avoid scratching the plastic surfaces and to get into tight spaces.
When it comes to cleaning agents, opt for a high-quality all-purpose cleaner designed for car interiors. You can use a cloth slightly dampened with the cleaner to wipe down plastic surfaces, avoiding screens and gently working on electronics. Always dry the surfaces with a soft, clean cloth afterward.
For heavily soiled areas, such as door sills and around the footwell, start by wiping them down with a clean, damp microfiber cloth to remove built-up dirt. If you need to wash these surfaces, be cautious as car electronics do not react well to water. Avoid areas with technology and have a good drying towel on hand.
For tough stains, you can apply a small amount of mild soap, laundry detergent, or plastic auto cleaner to a damp cloth and wipe the area clean. Never apply any cleaning solution directly to the plastic. Always test a small, inconspicuous area first.
To add shine to your plastics, you can use a plastic polish or an oil such as olive oil or boiled linseed oil. Apply the product with a soft cloth and then use a clean, soft cloth to remove any excess.
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Removing scratches from hard plastics
Firstly, it is important to remove any surface soil or grime that might cause additional scratches. This can be done by washing the plastic with a solution of warm water and a few drops of dishwashing liquid using a soft sponge or microfiber cloth. If the plastic cannot be submerged, a cotton ball dipped in isopropyl (rubbing) alcohol can be used to clean the area.
The depth of a scratch dictates the best method to remove it. A useful way to assess the depth is to run your fingernail over the scratch; if your nail doesn't catch, it is a shallow scratch that can be treated with light abrasives such as toothpaste or baking soda. If your nail does catch, it is a deeper scratch that will require wet sandpaper.
Toothpaste is a gentle abrasive that can be used to buff away superficial surface scratches. Simply apply a non-gel toothpaste to the scratch and, using a dry cotton cloth, work in small circles to remove the scratch. Rinse the area frequently with warm water and check your progress.
For slightly deeper scratches, a paste made from baking soda and water can be applied with a cotton round or cloth, working it into the scratch with gentle, circular motions. Rinse periodically to check your progress and repeat until the scratch is gone.
If the scratch is too deep to be removed with toothpaste or baking soda, wet sandpaper can be used. Soak a piece of fine-grit wet/dry sandpaper in water until saturated and, using gentle, circular motions, sand the area. Be careful not to apply too much pressure, as this could introduce new scratches. Rinse the plastic after every pass of the sandpaper and continue to move to a higher number, finer grit until the scratch has disappeared.
After removing scratches, especially deeper ones, the area may look duller than the rest of the piece. To restore the shine, use a commercial plastic or metal polishing compound. Put a small amount of the compound on a clean, dry cloth and polish the dull area in circular motions.
It is always recommended to test any cleaning or scratch-removal process on a hidden area of the plastic first, to ensure it does not cause further damage.
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Restoring dull hard plastics
If the plastic has faded due to oxidation, sandpaper, vinegar, or a bleach solution can be used to restore it. For hard plastics, use soapy water and 150-grit sandpaper, rubbing the surface in a circular motion and covering each faded area 5-6 times. Then, use 220-grit sandpaper and repeat the process. Finally, rinse the surface.
For vinyl plastic, a common material for car mats, mix detergent, household cleaner, vinegar, and bleach, and spray the solution onto the discolored area. Allow it to soak for a few minutes before rinsing with cold water. Be sure to wear protective gear when handling these chemicals.
If the plastic has turned yellow or brown, it likely contains bromine, which prevents fires but causes discoloration over time. To reverse this, use hydrogen peroxide, either by applying it directly or by submerging the plastic item in a solution for 24 hours.
To add shine to hard plastics, use a plastic polish or an oil such as olive oil or boiled linseed oil. Apply the product with a soft cloth, then use a clean cloth to remove any excess. There are also all-in-one products that act as both polish and protectant.
Additionally, there are commercial products available, such as Everbrite Coatings, that can restore and protect hard plastic surfaces, bringing them back to their original color. These coatings can be used on automotive trim, plastic furniture, and fiberglass.
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Using protectants on hard plastics
When it comes to using protectants on hard plastics, there are several steps to follow and products to consider. Firstly, it is important to dust the plastic surface using a soft damp cloth or a soft handheld dust mop, which can be easily sourced from the car care section of a grocery or discount store. This step ensures that dust and dirt are removed from the plastic surface. For crevices and hard-to-reach areas, a soft-bristled paintbrush, toothbrush, or cotton swabs can be utilised.
After dusting, it is essential to test any cleaning products on an inconspicuous area of the plastic to ensure they do not cause damage or discolouration. This is especially crucial for vehicles with different types of plastics and surfaces. Once a suitable product is identified, it can be applied sparingly to a damp cloth and used to wipe down the plastic surfaces. It is advised to follow up with a clean, dry rag to prevent water stains.
For added shine and protection, a plastic polish or oil, such as olive oil or boiled linseed oil, can be utilised. These products should be applied to a soft cloth and rubbed into the plastic, followed by a second clean cloth to remove any excess. There are also all-in-one products that act as both polish and protectant, streamlining the process.
For exterior plastic surfaces, such as black plastic trims, a restoring product can be applied to provide a deep clean and restore colour. This should be rubbed into the plastic with medium pressure using a soft towel. Additionally, specific protectant products like 303 Automotive Protectant can be sprayed onto a microfibre cloth and wiped onto exterior plastic surfaces after washing the car.
It is important to note that some protectants, like the 303 Automotive Protectant, are meant only for plastic and rubber surfaces and should not be used on painted areas of the vehicle. For added protection, products with UV inhibitors, such as the 303 interior/exterior protectant, can be used to prevent fading and discolouration caused by the sun's rays.
By following these steps and using the recommended products, you can effectively treat and protect hard plastics in your vehicle, maintaining their appearance and longevity.
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Removing stains from hard plastics
Firstly, it is important to understand the causes of plastic stains. Stains on plastics are often a result of food dyes, oils, and the reaction of certain substances with the plastic. Food dyes and strong pigments can penetrate the plastic surface, resulting in tough stains. Oils and greasy substances can also cause plastic to look stained and discoloured.
Before attempting to remove any stain, it is recommended to do some preparatory work on the plastic. Start by washing the plastic surface with mild soap and warm water to remove any dirt or dust. Use a soft cloth or sponge and focus on the stained areas. Then, rinse the plastic thoroughly and dry it with a clean towel. This step ensures that any remaining residue is removed and prepares the plastic for the next stage of stain removal.
For stubborn stains, there are several methods you can try:
- Soak and Scrub: Fill a basin with warm water and add a small amount of mild soap. Soak the stained plastic in the solution for about 30 minutes to soften the stains. Then, use a soft brush or sponge to gently scrub the stained areas in a circular motion. Rinse the plastic well and let it air dry.
- Vinegar Solution: Vinegar is an eco-friendly and non-toxic option for stain removal. It can effectively remove water marks and some lighter stains. However, be cautious not to use too much vinegar as it could damage the plastic.
- Baking Soda Paste: Baking soda paste is a powerful disinfectant and can remove tough stains. Mix baking soda with water to form a paste and apply it directly to the stained areas. Let it sit for 15 to 20 minutes, then rinse with warm water. Be careful not to scrub too hard as baking soda can be abrasive and scratch the plastic.
- Bleach Solution: Bleach is a potent cleaning agent and can be used to remove stubborn stains. Mix one part chlorine bleach with ten parts water to create a diluted solution. Apply the mixture to the stained areas using a sponge or damp cloth. Allow it to sit for 10 to 15 minutes before rinsing it off. Always handle bleach with care and avoid exposing bleached items to direct sunlight immediately after cleaning, as it may enhance discoloration.
- Denture Tablets: Denture tablets are an effective and gentle way to remove stains. Dissolve two denture tablets in warm water and pour the solution into the stained plastic container. The fizzing action will help lift even stubborn stains from crevices.
- Rubbing Alcohol: Rubbing alcohol is highly effective at removing stains caused by liquids such as coffee, tea, juice, and even tough tomato stains. If the stain persists, pour rubbing alcohol directly into the container and rinse thoroughly afterward.
Always remember to test any cleaning solution on a small, inconspicuous area of the plastic first to ensure it does not cause any damage. Additionally, some plastics may be sensitive to heat, so always check if the plastic can withstand heat and sunlight before attempting those cleaning methods.
By following these instructions and choosing the appropriate method for the type of stain and plastic, you can effectively remove stains from hard plastics in vehicles and restore their original appearance.
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Frequently asked questions
To clean the hard plastics on your vehicle, start by dusting the plastic with a soft damp cloth or a soft handheld dust mop. You can also use a small, soft-bristled paintbrush to clear dust from crevices. If you're dealing with stains, apply a mild soap or detergent to a damp cloth and wipe the area clean.
To restore dull or faded hard plastics, you can use a restoring product, which will provide a deep clean and restore some colour. Simply apply a couple of nickel-sized drops of the solution to a soft towel and rub it into the plastic with medium pressure. Alternatively, you can use a heat gun to draw out the oils within the material, but be careful not to heat the surface for too long, as it can melt or become damaged.
To protect the hard plastics on your vehicle, you can use a protectant to maintain the colour and quality of the plastic. After washing your car, spray the protectant onto a microfiber cloth and wipe it onto the plastic surfaces. You can also use a plastic polish or an oil, such as olive oil, to add shine to the plastic.
