WD 40? High detergent soap such as Ivory liquid? Neither of those are solvents but as a sticky material is moved around both those products will keep it from sticking again.

Sometimes the simplest things turn out to be good solutions to removing sticky stuff. My final go to for a solvent is acetone. It's not something that should be used without a trial area that you're ready to sacrifice for the cause.

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84 300SD
85 380SE
83 528e
95 318ic