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Showing results for tags 'silicone'.
I and others have written about this process in the past, how older Italian-made concertinas had a clever/cheap system of using rubber linkages to connect the buttons to the lever arms in their concertina mechanism. Over the decades the rubber dries out and cracks and buttons slip down inside the body of the concertina (if you're lucky!) and it's unusable. But broadly speaking most of them can be gotten back up and running by replacing the rubber sleeves. Apparently most folks (including myself back 7yrs or so ago) use silicone tubing that's normally sold to model vehicle enthusiasts for fuel