A radiation curable phase change ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one curable epoxy-polyamide gellant, and at least one colorant. The use of the gellant enables the ink to form a gel state having a viscosity of at least 10.sup.3 mPas at very low temperatures of about 25.degree. C. to about 100.degree. C. The ink may thus be jetted, for example onto an intermediate transfer member surface or directly to an image receiving substrate, at very low jetting temperatures of, for example, about 40.degree. C. to about 110.degree. C. In a preferred method of forming an image with the ink, the ink is heated to a first temperature at which the ink may be jetted, jetted onto an image receiving or intermediate transfer member surface maintained at a second temperature at which the ink forms a gel state, if appropriate subsequently transferred from the intermediate transfer member surface to an image receiving substrate, and exposed to radiation energy to cure the curable components of the ink.