I would use a plastic film product like a ziploc bag. Usually plastic products that feel kind of oily on the surface might work well also. Something that has a plastic surface similar to tupperware. I use a ziploc bag to mix two part epoxy. After the unused epoxy hardens, I just bend the plastic and peel off the epoxy. CA is different from epoxy, but that might work for you.
A teflon coated surface is another possibility.