https://allegro.pl/oferta/zestaw-naprawczy-kominkow-tasma-szklana-15x3mm-17155171124 STANDARD REPAIR KIT – TAPE 15x3mm  STANDARD set for self-replacement of the fireplace glass sealing tape.  The set includes: - self-adhesive coloured glass tape 15x3mm – 2.5 m.b.  Recommended Use:  - sealing the point of contact between the glass and the fireplace door frame - insulation of elements exposed to high temperature.  NOTE: Tapes with a width of 12mm and more are glued with an adhesive with increased temperature resistance (up to 300°C) so they can be used to seal fireplace doors.  Instructions for use of the seal are also included on the packaging.  Sealing tapes are available in many sizes.