Homebrew PCBs

Malcolm,

You sure have a talent for finding "moon rocks" ;-)

Does look like interesting material.

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Malcolm Parker-Lisberg
Sent: Thursday, August 15, 2013 9:12 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: RE: [Homebrew_PCBs] Re: Easy Fast Laser Print DIY Circuit Boards - Dave's toner-transfer freezing technique

Rick

A while ago I had some samples of Auxetic foam gasket material that I used on a pumping system. It is peculiar stuff in that if you stretch it it grows in diameter and if you squash it, when using it as a gasket, it expands to fill all the voids. Clamped between the band and the transfer sheet it would ensure even pressure distribution.

See:
<http://www.youtube.com/watch?v=PLDbSWSm5i8> for an explanation.
I can't remember who made it but it was reasonably priced.

An alternative would be to use a rubber gasket material.

Malcolm