Glazing
I was trying to remember unsuccessfully, which of the clear materials used to glaze windows, etc has the best non-yellowing properties. Where does the material used in blister packaging stand? Is it acetate?
oh no, I already forgot what I was forgetting.
Kurt
Mica is a good choice if you can find some clear samples. They are still used in electronic circuits to (electrically) isolate power transistors from aluminium (aluminum for the US folks) heat sinks.
So you can find them in shops where they sell electronic components (or the internet of course).
Most popular will be isolation sets for TO3 or TO220 style packages for power transistors.
Here are some sample pictures.
A typical TO220 mounting kit:
These mica plates ar
