ABSTRACT
Most of the high-temperature-resistant adhesive systems can be processed through cure in a conventional manner. The shelf life of the high-temperature-resistant adhesives varies considerably with basic polymer type. In order to discuss the performance of adhesives at elevated temperature, or any other material for that matter, the relationship between time, temperature, and stress must be defined. Intermediate-Temperature-Resistant Adhesives will cure in an autoclave, using normal vacuum bag techniques, with venting under the diaphragm to ambient atmospheric pressure. Very-High-Temperature-Resistant Adhesives can generally be bonded to aluminum; however, because of their high-temperature capability they were basically developed for bonding steel or titanium. Like the unmodified epoxy systems, the epoxy phenolics and nitrile adhesives have a very good resistance to hostile environments, particularly high humidity. All the adhesives in the high-temperature performance category are available in film form, with and without a supporting textile carrier.
