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If it's really yellow, replace it. Do not use detergent and laundry detergent to wash. Toothpaste is also good.
No matter how you brush it, it won't go back to its original appearance! Because the lids are all plastic, they are not as durable as ceramic! >>>More
Soaking with alum will have an effect.
Plastic yellowing is a basic characteristic of plastics, there are many reasons for plastic yellowing, but one of the most important reasons is the influence of ultraviolet rays, PBT material is no exception, because in the process of lighting the lamp, ultraviolet rays will be produced in the lamp, ultraviolet radiation plastic makes it yellow, of course, we can add some anti-ultraviolet materials into the plastic, but this is only to prolong the time it turns yellow, and it will still turn yellow after a long time. However, yellowing of plastics does not affect some of the basic properties of plastics, such as high temperature resistance and flame retardancy. >>>More
1. The toilet bowl has changed color, it has become yellow like a yellow-faced woman, especially the toilet lid is more likely to turn yellow, so we have to clean it. >>>More
In the bathroom, we need to use toilets every day, toilet lid is one of its important components, if we usually use it, too much force or frequent opening and closing, it is easy to cause damage to the toilet seat. Once the toilet seat is damaged, it is more troublesome to replace and repair. So what to do if the toilet seat is broken? >>>More
Let's get a new one, and you'll be fine.