23 Jan
2009
23 Jan
'09
4:19 p.m.
On 23/01/2009 23:57, Tom Hudson wrote:
many types of course. Generally speaking do the
materials used in pc's from
the 80s fall into a single category? Everything is injected into a mold for
sure, from largish cases to tiny keytops. Would all this qualify as
polystyrene?
Almost none of it is. ABS is one of the most common plastics, but
you'll find others, including PVC, glass-filled nylon, polypropylene,
HDPE, and more.
Many surfaces are anything but smooth. Has anyone
tried, given they were
successful in melding the surface, in reproducing the look of the surface
surrounding it? Smooth surfaces can be melded then touched up lightly
w/ultra fine emery cloth and some sort of lubricant I would guess. But the
rough textures are a different story.
If it's a really small area I've sometimes tried stippling with a fine
brush after applying a tiny amount of solvent, or "ragging" it with a
wad of suitably textured cloth (wadded into a ball and applied like a
stippler). Perhaps it's just my lack of skill, but I'd describe the
results as disguises rather than matching repairs.
--
Pete Peter Turnbull
Network Manager
University of York