Home / Forums / Vintage Melodicas / Hohner Melodica Professional restoration / Reply To: Hohner Melodica Professional restoration Reply To: Hohner Melodica Professional restoration November 7, 2018 at 6:24 am #10433 ClepParticipant Thanks — I did seal both sides (and the edges). I also figured that since it will be glued to the reed frame there won’t be much chance of cupping or splitting.