https://allegro.pl/oferta/zestaw-naprawczy-kominkow-sznur-szklany-12mm-17155327385 STANDARD REPAIR KIT – Ø 12mm CORD STANDARD kit for self-replacement of fireplace seals. The set includes: - colored glass rope Ø 12 mm – 2.5 m -HERMETIC temperature glue – min. 20 ml -terminal 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: Ø4, Ø6, Ø8, Ø9, Ø10, Ø12, Ø14 mm