Hello all! I produced a standee on signabond and am having a devil of a time finding an adhesive that will bond well with the smooth surface. The folding easel (made of signabond as well) I made is attached via a metal hinge and was applied with gorilla glue and screws. That has worked OK and better than the 3M VHB tape I used originally. Does anyone recommend an adhesive that bonds well to the smooth, non-porous surface? Or do I need to prep the surface in a certain way that increases bonding? Thank You.