Well, How to bring back plastic to white color .... :-(
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Well, How to bring back plastic to white color .... :-(
Hi,
NaOCl is great to clean surfaces, ... but with special cares.
By accident, I forgot the liquid on a plastic surface. It is likely some PP (window area).
I wanted to clean it with Javelo, i.e. sodium-hypochlorite-bleach, which is an alkaline inorganic chemical compound with the formula NaOCl.
On motorcycle repaired plastics. I use steel wool first for the scratches. Then I have my rubbing compound paste made with mineral oil and stick of abrasive in a crock pot.
Hydrogen peroxide and UV light is useful for retrobrighting ABS plastics (see, e.g., this video from the The 8-Bit Guy). However, this method tackles yellowing caused by photo-oxidation of the plastic polymers. I don't think it will be effective against oxidising from bleach.
I agree with smallpond to try an abrasive cleaning technique.
Hydrogen peroxide and UV light is useful for retrobrighting ABS plastics (see, e.g., this video from the The 8-Bit Guy). However, this method tackles yellowing caused by photo-oxidation of the plastic polymers. I don't think it will be effective against oxidising from bleach.
I agree with smallpond to try an abrasive cleaning technique.
Hydrogen peroxide is a good idea, yeah. Acetone maybe too?
But, damaging the PP layer can be dangerous, like polishing. Maybe there is a PP top layer or ABS, I dont know what it is, and below another thing, like wood. it is on window edge (inside)
Hydrogen peroxide, I recall has some effects.
Actually, it is just NaClO type of compounds (*) that put themselves into the molecular arrangement, and bit more.
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