Holts Firegum Exhaust Assembly Paste Product Overview Product Details Holts Firegum is specially formulated for the assembly of all exhaust systems as well as flues and boiler pipes. Firegum lubricates joints for the fastest, simplest assembly. Self-sealing to stop dangerous fumes, Firegum sets hard with heat and can withstand temperatures up to 1000°C. Manufacturer Part Number: HOLFG1RP
