Why plastic over time turns yellow
Various objects are made of white plastic: from small parts to large household items. One of the most common elements of the interior is a white plastic window sill and a frame from the window. This area often brings trouble to the housewives, because the plastic has to be constantly washed, and yellowing can be maintained.
This situation is due to the following factors:
- partial decomposition of the plastic surface under the action of ultraviolet radiation;
- temperature drops;
- additives introduced into the composition of modern materials.
If you look closely at this list, it becomes obvious why windows( frames and window sills) made of polymeric materials are first of all exposed to fading and yellowing. These interior details are subject to almost all factors affecting the color change.
Bleaching methods
But after you have dealt with the cause of the phenomenon, the question remains how to whiten the yellowed plastic of the window. In this case, popular recipes will come to the rescue, based on improvised means, which can be found, perhaps, in every home.
The most commonly used in this case, medical alcohol. It is able to slightly dissolve the top layer of the surface, and the plastic window sill is easily cleared of yellowness. But you need to be careful not to spoil the plastic. Use a lint-free napkin for manipulation and do not use much effort.
The same applies to acetone or nail polish remover. Such a tool will easily dissolve contamination and yellowness along with the top layer of plastic. In this case, it is not necessary to exercise excessive zeal in order not to damage the surface.Well recommended the use of washing soda ash and ordinary powder for white things. These components are mixed in equal proportions( 1 tablespoonful each) and 0.5 liters are diluted.water. Such a composition is applied to the surface of the window sill and window frame and left for several hours, then washed off with clean warm water.
In cases where the yellowness is not caused by fading in the sun, but by natural pollution or dust, a soap solution is suitable for cleaning. You can use the usual toilet or laundry soap, dissolved in water, which with a hard brush or sponge will clean the window sill and window frame. You can also use a melamine sponge.
If you prefer ready-made formulations, then use napkins for home appliances or car panels. They will not damage the plastic, because they are made for this material and have a gentle effect on it.
As you can see, there are plenty of tools and methods for cleaning white plastic, and you can get rid of yellowness by applying one or more of these techniques.
