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Question:

How do I make electrical contacts on 2 mil aluminized Mylar?

I want to try making a large capacitor from aluminized mylarI have a source of material, apparently four layers, clear, aluminum, clear and printed, excess stock for potato chip bagsI've sanded spots off, sometimes through the aluminum, but could only show contact on two out of many triesI hope to make contact at many places along one edge of each layer.If I can't do this I'll resort to making a crude 'parabolic' solar cooker using a large umbrella as beginning base structureEarly experiments seem promising.

Answer:

There's a really good chance.
it might since theyre warning you not to do it
I don’t know, but I’d believe them if I were youUse some PamBy the way, this is in the wrong category.
You would need 2 layers of aluminum, much thicker than you get on a potato chip bag With two sheets of aluminum foil and a sheet of polyethylene (i.ea sanwich bag) you could make a capacitorOnly 100 picofarads or so, but measurable on an LCR meterWith window glass and aluminum foil you could make a high voltage capacitor, enough to make a visible spark if you charge it up with a Van der Graaf generator.

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