Had to pull my AliRubber silicon heater off my bed and about 1/3 of

Had to pull my AliRubber silicon heater off my bed and about 1/3 of the sticky stuff came off. It seems that it would probably stick ok-ish if I put it back on, but I’m keen to hear other people’s thoughts first.
Anyone knows what they use (some 3M stuff from memory) and if that can be sourced somewhere separately? Thanks.

Get the reb high temp gasket maker for engines. Can find it any auto parts store