Oily feeling, water repellent plastic?
What sort of plastic is it which has a permanently oily feel and water will bead on its surface? We have some in the form of a butter melter which sits on top of a popcorn maker (hence temperature stable) and an ice-cream scoop.
Also, polymorph plastic will adhere inseparably to it, as I found our when I tried to use the ice-cream scoop as a mould - whoops!
No real reason for asking - just one of those things I know that I don't know. (Thank you Donald.)