Figure shows four tensile stress-strain curves, all at 50 %RH, with different imposed external mechanical forces. It is very interesting to note that for BADGE/JeffAmine cured under high external mechanical forces (red curve), the system retained a very viscous behavior, as seen by the extensive strains before failure. The curve was obtained with full motor range until failure. This was not the case for BADGE/JeffAmine cured under low external mechanical forces (inset pink and black), where the system shows linear elastic properties. Separation forces for BADGE/JeffAmine cured at 100 %RH showed a "super-plastic" or very viscous behavior and it was unclear to determine the stress at failure.