Faded and Dull Plastic WD-40 Specialist Silicone can help revive their appearance. Spray a small amount onto a cloth and gently rub it onto the plastic surface. The formula can help restore the shine and vibrancy of the plastic, making it look like new again.
WD-40 can help restore the appearance of faded plastic to some extent. It works by adding a temporary shine and can help remove dirt and grime, which may enhance the look of the plastic. However, it does not provide a long-term solution or repair for UV damage or degradation.
WD-40 can be used on just about everything. It is safe for metal, rubber, wood and plastic. WD-40 can be applied to painted metal surfaces without harming the paint. Polycarbonate and clear polystyrene plastic are among the few surfaces on which to avoid using a petroleum-based product like WD-40.
To make yellowed plastic look new, clean it with soap and water. Apply a paste of baking soda and water or hydrogen peroxide cream (for UV stains). Leave in sunlight for 4-6 hours, then rinse. Polish with plastic restorer or car polish for a glossy, like-new finish.
Coat your yellowed plastic gadget and wrap it. In a nutshell, all you need to do is to coat the plastic (cleaned and dried, of course) evenly with the cream peroxide. Avoid having the cream coming in contact with your skin or eyes, as it can cause burns. As such, I strongly recommend that you use gloves.
Scrub hard plastic with sandpaper dipped in soapy water, and spray vinyl plastic with vinegar and water to fix faded areas. For softer plastics, mix detergent, a household cleaner, water, and bleach and spray the area. Hydrogen peroxide can also fix discoloration. Paint the plastic if nothing else works.
If the damage is severe, hydrogen peroxide can reverse the damage, but it should only be used on white or gray products. If all else fails, repainting the plastic is always an option. Take good care of the plastic and you can restore it to look as good as new.
Lubricants based on silicone, perfluorinated PFAE, mineral oils, and synthetic hydrocarbons (SHC or PAO), typically work well with plastics. Esters and polyglycols are generally not compatible with plastic, although there are exceptions based on the type of plastic material.
After removing the scratches with toothpaste, baking soda, or sandpaper, apply WD-40 to your plastic item and buff it to a shine using a cotton rag. If you plan on eating off of your plastic, try olive or coconut oil in place of the WD-40.
Faded and Dull Plastic
Spray a small amount onto a cloth and gently rub it onto the plastic surface.
As an added bonus, you can also use WD-40 to polish plastic surfaces on your car. Whether they're a black or chrome finish, they'll look as shiny as they did in the showroom. WD-40 Multi-use product is great for most plastic surfaces that have had a lot of outdoor exposure, so it's fantastic for garden furniture.
Armor All® Cleaning Wipes have been specially developed and tested for use on automobile surfaces. They are not recommended for use on any painted or glass surfaces. If used on household surfaces, such as plastic or vinyl, just make sure you test first in an inconspicuous area.
To restore the shine, apply a small layer of a plastic polishing compound. You'll only need to apply a small amount, in circular motions, with a dry cloth.
Soapy water and sandpaper: The method offers a simple and effective solution for restoring slightly faded, hard plastics. It works by gently abrading the oxidized outer layer of the plastic with the sandpaper (a grit of 150 or 220). The soap acts as a lubricant, preventing scratches and promoting a smooth finish.
Place the plastic pieces under the sun and leave them there for at least a day. It's the UV rays from the sun that in combination with the hydrogen peroxyde will make yellowed plastic white again.
Solution Finish – Black Trim Restorer
Solution Finish Black Trim Restorer is an incredible new product that restores originally black surfaces to a deep, rich black without the usual horrid 'wet look' shine that also dries quickly with no greasy residue.