https://allegro.pl/oferta/zestaw-naprawczy-sznur-bazaltowy-700-c-12mm-17155127739 BASALT ROPE REPAIR KIT – 700°C PREMIUM kit for self-replacement of the sealing cord in fireplace, boiler or stove doors. The set includes: - basalt cord Ø 12 mm – 2.5 m - HERMETIC temperature glue – min. 20 ml - finishing tape with temperature adhesive, to cover the cut of the rope. The thermal glue included in the kit is resistant to temperatures up to 1100°C. Setting time: 3 to 8 hours. Instructions for using the seal are also included on the packaging. Available rope diameters: Ø6, Ø8, Ø9, Ø10, Ø12, Ø14 mm.