On 1/2/2006 at 12:51 PM J.C. Wren wrote:
You'd need an adhesive that wasn't
thick and wouldn't eat the foam.
Perhaps something like "artists adhesive". I think it's used for
mounting photos and such, and comes in a spray can. I do remember it's
fairly thin. I don't know if it would remain sticky enough over time.
It might be too thick, but the self-adhesive tinted mylar film sold for
windows might be conductive enough and have a suitable adhesive.
Does the foil disk need to be smaller than the plastic?
If not, you could just use one hole-punch on a sandwich of aluminium
foil and clear boxing tape. Most hobbyest stores with scrapbook
supplies should have round punches in assorted sizes.