Cleaning up yellowed/grubby plastic?

[Vintage Computer Festival]

On Wed, 1 Sep 2004, Bob Shannon wrote:

> 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.

So is the texturing on the final mold there for texturing or as a
by-product of the molding process?

-- 

Sellam Ismail                                        Vintage Computer Festival
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