Cleaning up yellowed/grubby plastic?

[Bob Shannon]

Smooth plastic on early prototypes indicates 'soft mould' plastic, 
essentially an
early prototype process for plastic parts, prior to committing to an 
expensive
mould that is very difficult to alter for last-minute changes.



Vintage Computer Festival wrote:

>On Tue, 24 Aug 2004, Jules Richardson wrote:
>
>>On Tue, 2004-08-24 at 14:39, Philip Pemberton wrote:
>>
>>>Hi,
>>>  Does anyone happen to know of a trick to remove (or lessen the effect of)
>>>the yellowing that tends to happen to lighter-coloured plastics?
>>>
>>Copious amounts of Jif (or whatever the hell it's called this week) has
>>worked well for me in the past. Some sort of scouring sponge (rather
>>than a simple cloth) is probably best as case plastics tend to be
>>somewhat uneven.
>>
>
>Be careful, because what you'll actually be doing is removing the texture
>of the plastic, which may well make it look as ugly or uglier than before.
>
>Most plastic computer enclosures have some sort of texture.  I guess it's
>an asthetic thing, since most prototypes I've got have smooth plastic
>enclosures.
>