Based on your previous focus on low-volatility, high-reliability sealing requirements in high-temperature hot runner applications, several sealants with a temperature resistance exceeding 1700℃ are currently available:
HN-767A 1730℃ Ultra-High Temperature Repair Agent
This sealant uses inorganic ceramic materials and modified curing agents as raw materials. It is designed to withstand temperatures up to 1730℃, cures without shrinkage, and possesses flame-retardant, wear-resistant, acid and alkali resistant, and thermally conductive properties. It can be used for sealing, filling, and bonding high-temperature equipment, and is suitable for ultra-high temperature hot runner applications.
PH-1700 Ultra-High Temperature Inorganic Sealant
This product has a long-term operating temperature exceeding 1700℃, cures at room temperature, has a bonding strength of up to 38MPa, and excellent high-temperature insulation properties. It is suitable for encapsulating, potting, and bonding high-temperature sensors, thermocouples, and other high-temperature components related to hot runners.
Huirui 1700°C High-Temperature Adhesive
It is an inorganic ceramic component, capable of withstanding temperatures up to 1730°C, with a bonding strength of up to 82MPa. It can directly contact open flames without carbonizing, and is suitable for sealing and repairing applications such as hot runner steel temperature probes and high-temperature kilns.
This type of ultra-high temperature inorganic sealant exhibits virtually no organic decomposition or volatilization under operating conditions above 1700°C, simultaneously meeting your dual requirements of low volatile pollution and high temperature resistance.

