Most likely because of sunlight or chlorine. Sunlight will cause the plastic to break down and release colorless gas called ethylene. Chlorine will cause the plastic to release a yellow-green gas called chlorine dioxide.

Yes, yellowed plastic can be whitened with a bleach solution. Be sure to use a mild bleach solution and test it on a small area first to make sure it doesn’t damage the plastic.

The best way to whiten a yellowed fiberglass tub is to use a bleach solution. You will need about 1 cup of bleach per gallon of water. Pour the bleach into the tub and let it soak for about an hour. Then, pour a fresh batch of water into the tub and rinse it out.

You can clean yellowed plastic with bleach by soaking it in a bucket of water and bleach for a few hours.

Bleach will not make plastic white, but it will remove the color from the plastic.

There is no definitive answer to this question as it depends on the type of fiberglass tub and the cleaning agent that is being used. Some people have reported that Mr. Clean Magic Eraser can be used on fiberglass tubs, while others have said that it will not work. It is best to test the cleaner on a small section of the tub first to see if it works before using it on the entire tub.

Sun damaged plastic can be fixed by sanding it down to its original thickness, then coating it with a sealant.

There are a few things that you can do to make your bathtub look brand new. First, use a vinegar and water solution to clean it. Second, use a scouring pad to clean the surface. Third, use a bleach solution to clean it. Fourth, use a lemon juice and water solution to clean it. Fifth, use a Dawn dishwashing detergent to clean it. Finally, use a vacuum cleaner to clean it.

Acrylic tubs are made of plastic and can withstand acidic environments. Vinegar will not damage acrylic tubs.

There is no surefire way to reverse sun damage on plastic, but many people believe that using a UV light or a special plastic treatment can help. It’s important to note that any kind of sun damage will not disappear overnight, so patience and perseverance are key.

There are a few things you can do to make your acrylic tub look new again. First, you can use a bleach and water solution to clean it. Second, you can use a sealant to protect it from water and stains. Third, you can use a paint or coating to give it a new look. Fourth, you can replace the acrylic tub with a new one.

Acrylic tubs are made of plastic and can be stained by many things. Some common causes of yellow stains on acrylic tubs include coffee, tea, fruit, and juice. To remove the stain, mix 1 cup of hydrogen peroxide with 2 cups of water and pour the solution onto the stain. Let it sit for 10 minutes, then scrub with a brush. Repeat if necessary.

There is no one “best” plastic restorer, as the best one for you may vary depending on your specific needs. Some popular options include acetone, lacquer thinner, and denatured alcohol. It is important to test a potential plastic restorer on a small area first to ensure that it does not damage the surface.

WD-40 is a great lubricant and can be used on a variety of surfaces. However, it should not be used on electrical equipment as it can cause shorts and damage.

Acrylic is a type of plastic that is used in many art projects. Acrylic is not a natural material, so it can be difficult to remove paint or other stains. Many people use a magic eraser to try to remove the stain, but it may not work well because acrylic is a synthetic material.

There are many ways to remove oxidation from plastic. The most common way is to use an oxidizing agent, such as hydrogen peroxide or ozone.