I have some old electronics with completely yellowed plastic which I want to restore. (so called “retrobright” approach)
Normally you can buy hydrogen peroxide in other countries with relative ease, but that doesn’t seem to be the case here.
So, I was wondering if anyone here knows where you can buy it with relatively high concentration (at least 10%)? The best I could find is medical grade stuff with 3% concentration, but it simply won’t work for the intended purpose, not to mention it is sold in like 100ml bottles, while I need at least a liter. On the other hand, you can find huge 20L boxes of the stuff on Rakuten, but that isn’t exactly suitable either. So I wonder if it’s available anywhere in retail in 1L bottles or such.
by Lurlerrr