Abstract: A tenon gasket for a musical wind instrument comprises a strip of plastic material having an adhesive layer on one side and adhered around the tenon of the instrument in the form of a sleeve with the ends of the strip butted. Preferably, a thinner buildup strip of adhesive is adhered around the tenon first with the plastic material strip being superimposed thereover and adhering both to the adhesive buildup strip and directly to the tenon. The buildup strip shapes the outer surface of the sleeve. Preferably the plastic material is cross-linked polyethylene exhibiting a lubricated surface property. These strips can be sold as a gasket repair kit in a transparent bag with the adhesive surfaces of the strips releasably covered with paper layers.