De-yellowing results

On 08/30/2015 05:55 PM, Tothwolf wrote: Some digging for anectodal evidence (there's very little methodical technical stuff) on the process indicates that the ordinary aquarium-style UVA lamps work extremely slowly; the germicidal UVC lamps work very quickly, but overexposure to UVC is counter-productive in that it furthers the breakdown of the flame retardant bromine-containing stuff that caused the yellowing. So perhaps UVB is the best compromise, assuming that Planck was onto something... Note that much of the material on the web does not concern computer equipment. The most disturbing reports were from the people to de-yellowed gloss-finish items reporting that said items come out less than glossy, particularly when percarbonate (Oxiclean) was added to the mix. Reports were varied and interesting. UV was cited repeatedly as a suspect when it came to causing yellowing in the first place This flies in the face of my experience in that I've had gear that's spent almost all of its life in a closed storage cabinet that yellowed anyway. Regardless of all of this, it seems that yellowing does recur, which is what one would expect from what amounts to a surface treatment. No, I don't plan on using this process... --Chuck