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Sticky Stuff Remover

If you want industrial quantities (and you do, as it's a very handy general purpose degreaser), search for d-limonene. While you're in the industrial solvents shop, get some isopropanol too, to remove the residues of d-limonene.

Just use some alcohol. You can get Isopropyl alcohol in most chemists which is perfect but anything would do. D-limonene can be found in cheap washing up liquid.