One of the frustrations I've had with hot hide glue hammer veneering is fixing voids. I know the technique of reheating the void through a moist rag to reactivate the glue, but I have not always been succesful with this, I suspect because the voids may be due to glue starvation. Recently I came up with an easy fix I'd not heard of previously.
I use cold hide glue (I've been using Franklin's) and I inject it into the void with a syringe and then clamp the void. It works like a charm. The cold and hot glues are compatable so there's no problem with adhesion. A large void can but cut along the grain with a sharp knife or X-acto blade, and cold hide glue applied similarly, then clamped.
Howard Steier
I use cold hide glue (I've been using Franklin's) and I inject it into the void with a syringe and then clamp the void. It works like a charm. The cold and hot glues are compatable so there's no problem with adhesion. A large void can but cut along the grain with a sharp knife or X-acto blade, and cold hide glue applied similarly, then clamped.
Howard Steier