No, Sika will stick to Sika - get it on promptly though, within 12 - 24 hours.
When I have done the canopies on our 7 and 8, we put a 'grab' bead on to get the canopy in place. the edge of the primer was still there masked off and as soon as the first bead was set, I went on with the finish bead. It is therefore stuck to fresh Sika and the residual primer to either side.