Well, he said that he'[d tried replacing the CPU... And battery damage...

And another machine arrives... A Mac LCIII which someone else has given up trying to repair.

rubber_jonnie wrote: ↑Tue Feb 27, 2024 9:51 pm Would contact adhesive be better? I Wouldn't have thought PVA would work well with plastic etc.

Contact adhesive may melt the plastic foam.

Ordered some metalised emergency blankets...

PVA seems to glue properly.

However, it's not as good as first thought.

After redoing five keys two don't work, so the bags are probably not evenly conductive.

I just tried an experiment with foil on some foam... WAY too conductive. It turns out the original discs have megaohm resistance.

So, I tried with a circle of anti-static bag and.... perfect!

I just need a way of reliably gluing the foam to the other materials as Copydex fails totally.

You can rescue the discs from the original foam pads, just clean them up.

Cutting the foam and foil together is easy with an 11mm leather hole punch.

The insulating stuff will probably work perfectly well. That's what I'll be trying with. Far easier if it's just punch out a circle of that material which is already manufactured and go. Yes, reports of cooking foil + foam mat stuck with Spraymount work fine. Best to use the original circle of plast...

Just as a back-up I've ordered a roll of "Stormguard" tape from Amazon. That'll arrive tomorrow.

Seeing as it's 5mm thick and looks flatter it may work better anyway. (And it's only £7.99 a roll.)

Yes, they're the very same, but the Texelec ones have a longish lead time... and they're from the 'States. If I can find some local foil coated and self-adhesive foam which works then that will solve the problem more cheaply and more quickly. (Basically ~£30 for a very large number of pads I can use...