Maybe silicone isn't epoxy glue or an adhesive? Time to check your chemistry books.
I have that
BGA IC Epoxy Glue Remover CellPhone chip clean BGA IC adhesive removing liquid
and am using it for remove the silicone in the corners of the big chips of the notebook. I have put with the pipette and wait for 20 minutes but when i try to remove the silicone it`s still very hard and not going off.
Thanks in advance