Re: (OT) Electronics injection moldable material

A few more requirements to narrow it down.

5) It should be rubbery and not rigid since it will be handled a lot and
should not be dented when it is slightly pinched or bumped into metal sharp
objects

6) should not soak up water

7) should not melt or get gooey when exposed to gasoline, oil or alcohol.

did I mention it still has to float? :)


thanks

I looked at the polyurethane foam and while it meet my original posted
requirements I don't think it will be rugged enough for continuous handling
and bumps and dings.

This guy will be velcroed to a vibrating and buzzing R/C boat (hence the
fuel and oil exposure) and may fly off and land in the water from time to
time (must float, and not soak in water).

The handling is folks dropping it on the cement launch pad, tossing it in
their field box with pliers, screwdrivers, etc bumping/rubbing against it.

I'm thinking something more like an RTV with microbaloons in it. or similar.



"Mook Johnson" <mook@xxxxxxxx> wrote in message
news:_L78e.3326$h6.2052@xxxxxxxxxxxxxxxxxxxxxxx
> I'm looking for a light injection moldable (or pourable) material that has
> these properties.
>
> 1) dielectric and non shielding to RF signals
>
> 2) non corrosive to electrical components (electronics can be conformal
> coated if this can't be met)
>
> 3) Floats on water when cured (light weight)
>
> 4) curing process does not damage SMT electrical components (not extreme
> high temperatures etc.)
>
> thanks
>
>
>
>
>


.

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