Ethan Clarke
Sun damage to plastic is a common problem, especially for car owners. Plastic does not have a protective clear coat, so it is susceptible to damage from UV rays, which dry out the oils in the plastic and cause it to fade, discolour, become brittle and lose its structural integrity. To restore sun-damaged plastic, it is important to first clean the plastic with a mixture of warm water and liquid laundry detergent to remove any dirt, dust or debris. Then, depending on the severity of the damage, different treatments can be applied, such as commercial plastic conditioning products, hydrogen peroxide, buffing products, or polytrol.
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What You'll Learn
Clean the plastic with a microfiber cloth and warm water
To reverse sun damage to plastic, one of the first steps is to clean the plastic with a microfiber cloth and warm water. This is a simple and effective way to wipe surfaces and floors around your home. Microfiber cloths are woven from polyester fibres that are about one-fifth the thickness of a human hair. They are surprisingly strong and long-lasting. The fibres are electrostatic, so they attract and hold dust, offer gentle abrasive action, and are lint-free.
Before using the microfiber cloth, ensure it is in pristine condition. Avoid washing microfiber cloths with cotton towels or other types of cloth. Cotton sheds lint, and the microfiber will attract the lint, causing little knots or pills to form. Similarly, avoid using fabric softener as it leaves a film on the fabric that will render the fibres less absorbent. Chlorine bleach can also damage microfiber and ruin your cloths. If you're concerned about bacterial contamination, add pine oil or a phenolic disinfectant like Lysol Laundry Sanitizer when washing your microfiber cloths.
After cleaning the microfiber cloth, you can now use it to clean the plastic. Dampen the microfiber cloth in lukewarm water and gently scrub the surface of the plastic with a circular cleaning motion. This should remove any dirt, dust, grime, oils, and other debris that can interfere with the cleaning products. Rinse the residue away with clean, cool water and dry the plastic with another clean cloth.
If the plastic is particularly dirty, you can use a mixture of liquid laundry detergent and warm water to clean it. Add about 0.5 fl oz (15 mL) of any liquid laundry detergent to 16 fl oz (470 mL) of warm water. After washing the plastic, dry it off well with a clean, dry cloth.
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Apply a plastic conditioning product
Sun exposure can cause plastic to crack and lose colour. To reverse this damage, you can use a plastic conditioning product.
Before applying the product, it is important to clean the plastic surface. Wash the plastic with warm water and a microfiber cloth to remove any dirt, dust, or debris. If the plastic is particularly dirty, you can use a mixture of liquid laundry detergent and warm water. Rinse and dry the plastic surface thoroughly before proceeding to the next step.
Once the plastic is clean and dry, you can apply the conditioning product. Place a coin-sized amount of the product on the plastic. Using a clean, soft microfiber cloth, wipe the cloth in a circular motion until the conditioner is no longer visible. Make sure to wipe off any excess conditioner and allow the plastic to dry completely before using or storing it.
It is recommended to choose a high-quality conditioning product that includes UV protection to shield the plastic from further sun damage. You can find plastic conditioning products online or at home improvement and auto parts stores. Some products come in kits that include applicator pads for easy application.
In addition to using a conditioning product, you can also use a plastic buffing product to remove any scratches or cracks caused by sun damage. Apply a coin-sized amount of the buffing product to a cloth rag and work it into the scratches using circular motions. Finally, wipe off the excess product with a microfiber cloth.
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Use hydrogen peroxide and ultraviolet light
To reverse sun damage to plastic, one method involves using hydrogen peroxide and ultraviolet light. This process can restore the original colour of the plastic and works best for white or grey plastic items.
First, clean the plastic thoroughly with rubbing alcohol or another cleaner to remove any dirt, dust, or debris. Next, remove any metal trim from the plastic, as hydrogen peroxide will damage most metals. If you are using a hydrogen peroxide solution, place the plastic in a container and cover it completely with the solution. If using a paste or cream, apply it liberally to the plastic with a paintbrush or old toothbrush. Submerging the plastic in the solution is not necessary when using a paste.
It is important to wear protective gear when handling hydrogen peroxide, as it can irritate the skin and eyes. Wear gloves, long sleeves, and goggles, and work in a well-ventilated area. Avoid inhaling the fumes, and keep the solution away from your hair, skin, and eyes.
Once the plastic is coated, expose it to strong, even ultraviolet light. A UV lamp can be used, or the plastic can be placed in direct sunlight. Regularly check the progress of the treatment, and if using weights to hold down the plastic, move them to different locations to prevent uneven UV exposure. The treatment can take anywhere from a few hours to a few days, depending on the severity of the sun damage.
The combination of hydrogen peroxide and ultraviolet light creates an intensive oxidation process that generates highly active hydroxyl radicals. These radicals have a greater oxidation potential than other agents like ozone and chlorine, making them effective in restoring the colour of sun-damaged plastic.
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Buff out scratches with a cloth and buffing product
Sun damage to plastic can be a difficult problem to resolve, but there are a few methods to try. Firstly, it is important to understand the cause of the damage. The sun's ultraviolet (UV) rays break down the chemical bonds in plastic, causing it to fade, discolour, become brittle, and lose its structural integrity. This results in the plastic drying out, dehydrating, and losing its colour.
Now, for buffing out scratches with a cloth and a buffing product:
Before attempting to buff out scratches, it is important to clean the plastic surface thoroughly to avoid further scratching. Use warm water and a few drops of dish soap, or a small amount of rubbing alcohol, on a clean cloth to wipe down the plastic surface. Ensure that you dry the surface fully with a clean microfiber cloth before proceeding to the next step.
If the scratches are light, you can use a gentle abrasive like toothpaste or baking soda. Toothpaste contains silica, which helps to remove stains and can be effective in removing superficial surface scratches. Squeeze out a small amount of non-gel toothpaste and, using a dry cotton or microfiber cloth, work in small circles to buff away the scratches. Rinse the area frequently with warm water and check your progress. You may need to repeat this process several times before the scratch is removed.
For deeper scratches, create a thick paste with two parts baking soda to one part water. Apply this paste to a cotton or microfiber cloth and work it into the scratch using gentle, circular motions. Rinse the area often to check your progress and repeat the process until the scratch is no longer visible.
It is important to note that regular grit sandpaper should not be used on plastic as it is too harsh. Instead, opt for micro-grit sandpaper, starting with 1000 grit and progressing to finer grits up to 2000. Use circular buffing motions and clean the surface after each pass.
After removing the scratches, the area may appear dull. To restore the shine, use a commercial plastic or metal polishing compound. Apply a small amount of the compound to a clean, dry cloth and polish the dull area using circular motions. Repeat this process until the shine is restored.
By following these steps, you can effectively buff out scratches from plastic surfaces and restore their appearance.
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Seal and protect with a ceramic coating
Sun damage to plastic is caused by ultraviolet rays, which dry out the oils in plastic and damage it at a molecular level, causing it to lose colour and become brittle. While there are a number of ways to restore sun-damaged plastic, one effective method is to seal and protect the plastic with a ceramic coating.
Ceramic coatings are an excellent choice for protecting plastic surfaces and providing lasting durability. They offer superior protection against scratches, stains, and harsh chemicals, while also adding shine and lustre to the material. They are highly resistant to weathering and wear and tear, and they provide more durable protection against scratches and impact damage than paint.
Ceramic coatings can be used on various plastics, including polyethylene, polypropylene, and ABS, as long as the plastic does not tend to flex or bend. These coatings create a hard-wearing protective layer that protects plastic surfaces from damage. They also provide additional protection against UV radiation, which can cause fading and discolouration over time.
To apply a ceramic coating to a plastic surface, the surface must first be thoroughly cleaned and prepped. Any dust, dirt, or debris should be removed before the application. Once the surface is clean, a primer may be used to ensure that the ceramic coating will adhere properly. After priming, the chosen ceramic coating can be applied in several thin layers using either a spray gun or an airbrush tool.
It is important to note that ceramic coatings are not permanent solutions for plastic surfaces, so it is necessary to reapply them periodically to ensure optimal performance. However, these applications can be done quickly and easily with minimal disruption or mess. By reapplying ceramic coatings regularly, you can maintain the glossy finish and protect the plastic from further damage.
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Frequently asked questions
There are several ways to reverse sun damage to plastic. One way is to use a plastic conditioning product, which can help reverse damage caused by UV light. Another way is to submerge the plastic in hydrogen peroxide liquid or coat it with a hydrogen peroxide paste and expose it to ultraviolet light.
Start by washing the surface with warm water and a microfiber cloth to remove dirt and debris. If the plastic is very dirty, use a mixture of 5 fl oz (15 mL) of liquid laundry detergent and 16 fl oz (470 mL) of warm water. After washing, dry the plastic with a clean cloth. Then, apply a coin-sized amount of the conditioning product to the plastic with a microfiber cloth, using circular motions. Finally, wipe off the excess product and let the plastic dry.
First, clean the plastic thoroughly with rubbing alcohol or another cleaner to remove dirt. If using a hydrogen peroxide solution, submerge the plastic in the solution, using stainless steel weights to hold it down if necessary. If using a paste, apply it liberally with a paintbrush or toothbrush. Then, expose the plastic to ultraviolet light for 4 hours.
Yes, there are a few other methods that can be used. One is to use a plastic buffing product to remove scratches and cracks caused by sun damage. Another is to use a colour restorer product, such as Owatrol Polytrol, to restore the plastic's original colour. Additionally, a ceramic coating like IGL Coating's Ecocoat Trim can seal and protect plastics against future UV damage.
