Designed for gap sealing of metal, ceramic and composite equipment, IOTA R31800F withstands oxyacetylene flame up to 1800℃ for over 5 minutes without cracking. Cured three-component silicone polymer retains elasticity to accommodate thermal expansion of high-temperature facilities, eliminating heat and gas leakage at joints. Widely applied to high-temperature kilns, heat treatment fixtures, carbon-ceramic parts and hot metal pipeline seams. Room-temperature curing takes 5-7 days without heating, convenient for on-site maintenance. Custom 0.5L–10L plastic drums, 1-year shelf life in cool sealed storage, apply in ventilated workshops.