Indeed, your question is the wrong way around -- the pink stuff is millions to trillions of times more conductive than most plastics! It's used to ship and store unpowered electronics. Though almost everything will be okay operating in contact with it, anyway -- despite the difference, its resistivity is still usually measured in exponents too. So the in-circuit resistance between points touching the stuff will be in the gigaohms -- something no digital circuit would notice.
I have a very different caution for you, actually -- be very careful cutting that stuff, it likes to crack like nobody's business. Or is that acrylic, or both? Both like to melt and gum up high speed cutting tools, too (drills, saws, etc.).
Have fun,
Tim