Here are two photos of my shellac-stick. It is formed by hand while the warm bridge is in the still warm shellac. DON’T let the shellac boil or bubble!
I hope you can see the curvature of the dental-bridge. Without the underneath support, this could be a major problem for anyone, trust me!.;(
I still have one more photo to send, as I didn’t rotate it enough!
Gerry, on my iPhone