sugru is developed to stick to things, but, sometimes it’s useful if it doesn’t stick.
So what can you do?
Wetting the surface you don’t want it to stick to with soapy water works very well and doesn’t leave a greasy residue like it would if you used oil. But don’t cover your eReader in soapy water. Or oil.
Eleanor used cling film to make this:
I used cling-film on the eReader to stop the Sugru sticking and more on a flat surface so I could press the outer face flat. The result is dust protection for the eReader ports, extra protection for the corners, and a happy me!
Bless you for trying to explain the terminlogy towards the...By Marcelino in How to make a macro lens for your (i)Phone…