As shipped, concentrated ink has to be diluted with a mineral spirit solvent in the proportion of 60% ink to 40% solvent by volume. Diluents can be shipped with the ink or may be purchased from a local supplier. We can also supply blended fast-dry solvents. After dilution, the ink should air dry in 3-5 minutes. If using a dryer, however, keep the temperature between 150ƒ-180ƒ. The dilution with the solvent should be done with intense mixing. The concentrates do not dilute easily and it is necessary to obtain an extremely homogeneous mixture. It is suggested to mix for at least 10-15 minutes with a high speed mixer. If using the whole container, you should pour the entire contents into a larger container and mix with a high speed mixer, after the diluent has been added. However, if using only a portion of the contents, be sure to mix the ink first in the original container with a high speed mixer, prior to pouring any out for use or dilution.