Burnt Plate Oils are used to lower the viscosity of inks. They should be added to ink sparingly, as the detail of a print may be lost if the ink becomes too fluid. Burnt Plate Oil #000 has less tack and is a good match for use with Gamblin Relief Inks. Burnt Plate Oil #2 has a higher tack and is excellent for modifying Gamblin Etching Inks.