Earlier this month we profiled HYREL's hot swappable extruder system, as the Georgia-based 3D printer manufacturer announced it had effectively printed using a couple different kinds of clay and Plasticine. At that time, the emulsifiable extruder used to print the soft materials was dubbed the EMO1. It has since been renamed the EMO-25 and Sugru is the latest material successfully tested with it.
Sugru, an elastomer also known as Formerol F.10, is a popular self-setting rubber commonly used for fixing and making things. It can be molded like clay and it will bond to most surfaces. It cures into a flexible, waterproof, silicone rubber in a matter of hours and has a service temperature range of -50° to 180° C. One obvious application for 3D printing such a material would be custom gaskets.
More information is available on HYREL 3D's web site.