Permabond® 920 is the original allyl cyanoacrylate adhesive.
It is a single part, low viscosity liquid that will cure rapidly at
room temperature when pressed into a thin film between parts.
Permabond® 920 will cure to fixture strength in 10 seconds on
most surfaces, and rapidly develops high strength with full cure
obtained in 24 hours. The adhesive was specifically designed to
meet the high temperature resistance required by certain applications. It provides excellent bond strength to steel, aluminum, and most metal surfaces. The cyanoacrylate will also adhere well to a wide variety of other materials including most types of plastic and rubber.
In order to withstand high temperature environments, Permabond® 920 was designed with a secondary curing mechanism that is activated at temperatures higher than 150°C (302°F). The procedure to activate this mechanism is as follows:
1) Parts are bonded and clamped at room temperature for four hours.
2) The clamped parts are then heated at 150°C (302°F) for two hours.
3) After the two hours, the bond will be thermally resistant up to 250°C