Adhesive, High-temperature

Name:
Adhesive, High-temperature
Detailed information:
(1) An organic polymer, e.g., polybenzimidazoles, that retains bonding strength up to 260C for a relatively long time (500–1000 hours); strength drops rapidly above 260C, 80% being lost after 10 minutes at 535C. (2) An inorganic (ceramic), e.g., silica–boric acid mixtures or cermets produce bonds having high strength above 2000F. Adhesive lap-bond strengths can be over 2000 psi at 1000F. These adhesives are used largely for aerospace service, and for metal-metal and glass-metal seals. A silicone cement is reported to have been used to adhere tiles to spacecraft.See RTV.