If needed, these materials should be applied into the wet glue. Allow enough time for animal hide glue to dry thoroughly all the way through. Animal hide glue used along with sinew, gut or rawhide will form a material a lot like fiberglass in it's strength - as long as you keep it dry. The knife is sanded or steel wooled to smooth out the glue job. Pigments are applied in the form of paints or natural pigments in a thin hide glue base.
Pigments are easy to use for antiquing or color accents.
Use your imagination and color the knife perfectly whether you want an aged look or the look of a knife just made in ancient times. A simple way to make a primitive knife for collecting, use or decorating is to purchase a knife kit that is already started. You can purchase fine stone knife blades already chipped and ready to mount.