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View Full Version : Curious about the old black SB2 case material



Mark Lanctot
2006-02-02, 06:55
I'm curious about what sort of plastic was used in
the old black SB2 case.

I've never seen, or, more appropriately, *felt*,
anything like it.

Is it rubberized through and through or is it just
on the finish?

Is it regular high-impact polystyrene mixed with
rubber powder?

I've worked in the plastics industry a bit
(polyethylene and polypropylene film casting and a
smattering of polyethylene and polystyrene
production) so don't spare any technical details
if anyone has them.
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Mark Lanctot
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seanadams
2006-02-02, 09:13
The surface is actually not molded in - it's "soft touch" paint. The paint is clear and rubbery, and the blackness comes from the plastic below, not the paint. The plastic I believe was high impact polystyrene but I'm not sure on that. If you open it you'll see it's a regular plastic surface on the inside.

Mark Lanctot
2006-02-02, 09:33
Aha...cool. It's very unusual stuff - doesn't
feel like a coating at all. One of the reasons
it's so hard to detect was that it was applied so
uniformly.

The downside, as others have indicated, is that it
sucks up dirt and is very hard to clean, being porous.

High-impact PS would put it with 99% of the rest
of electronics equipment.

Thanks Sean.

seanadams wrote:
> The surface is actually not molded in - it's "soft
touch" paint. The
> paint is clear and rubbery, and the blackness comes
from the plastic
> below, not the paint. The plastic I believe was high
impact polystyrene
> but I'm not sure on that. If you open it you'll see
it's a regular
> plastic surface on the inside.
>
>

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Mark Lanctot
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