Home / Forums / Melodica construction, repair and maintenance / Gasket replacement? / Reply To: Gasket replacement? Reply To: Gasket replacement? November 18, 2020 at 10:22 am #11855 DarenKeymaster I use self adhesive rubber tape for gaskets. This one’s 1.5mm thick, you can find other thicknesses. I cut it the width I need with a long metal ruler and a scalpel. Works great!