Permabond® 240 has been specially developed to provide a slower cure time than most cyanoacrylate glues. It has a high viscosity, combined with its slow cure allows time for accurate alignment of parts where this is a critical factor, or to enable the assembly of somewhat larger components. In addition, the high viscosity makes 240 particularly suitable for use on foamed rubber or semi-porous materials such as leather and wood.
The useable handling times are 15-20 seconds for rubber, plastics and metals.
240 was previously know as “C4”.