Rubber gloves: Protect your hands while working.
Sunlight accelerates the fading process.
Here’s how to whiten yellowed plastic
. Preparation:
First, put on rubber gloves to protect your hands. Then, clean the yellowed plastic surface with a damp cloth to remove dirt and dust. This allows the hydrogen peroxide to act directly on the plastic.
With hydrogen peroxide.
Apply a generous amount of hydrogen peroxide (40 parts by volume) to the yellowed plastic surface using a brush or cloth. Make sure the product is evenly distributed over the entire surface.
3. Cover the top with plastic wrap.
After applying the peroxide, cover this area with plastic wrap. This will keep the peroxide in contact with the plastic and prevent it from evaporating too quickly.
4.
If possible, expose the device to sunlight. Sunlight enhances the effects of hydrogen peroxide and whitens teeth faster. Leave the device in the sun for about an hour.
