> Thanks for doing all of that work!
> All I really needed was a point in the right direction; next time I'll
> ask for a little more specific response and see if I can save you all
> that time.....
>
> The PICList is a wonderful resource.

I knew that it would be of wider value so worth some effort.
I've done a lot of investigating into aspects of SR in the last year or so.
That was 'out of my head' except for web references. May even be
reasonably correct :-).
Still haven't quite got what I want.  Issues include country
availability, cost varies by country, material adhesion (ABS
especial;ly in my case), ... .

People like DC (Dow Corning) tend to make products that are country or
region  specific. No doubt aimed at maximising income.

One aspect not mentioned so far is hardness. Usually measure on Shore
A scale for rubbers.
25 is soft and squishy, 30-35 is stiffening up, 70 is auto tyre rubber.
SR's often come in the 25-35 range but some get to 60-90 range.

Specific gravity varies from a bit under 1 to some to 1.5 - 1.7 for
filled thermally conductive versions.

Bond strength and shear joint strength aries with typ[e and bonded
material but 300 psi is a realistic starting point in many cases.


          Russell McMahon
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.