Low-speed tack measurements (approximate to 0.1-6.0 rad/s or approximate to 1-57 RPM) have been determined for polymeric-based solution inks and oil-based dispersion inks, tripropylene glycol (TPG), Igepal (I-530), and N-350 (viscosity calibration standard) fluids using a metal roller/incline method. The inks and fluids were tested under "unaged" or reference conditions at 25 degrees C. The inks were "aged" at 70 degrees C and, subsequently, tack measurements were made at 25 degrees C. The tack (tau(i)) and angular speed (w(i)) for the inks were empirically fitted as functions of incline angle (alpha) and "aged" time, t(cd). A correlation was also made for tack and percent weight change, Delta W-i. other factors, such as viscosity, surface tension, humidity, and "aging" temperature, T-cd, were also found to affect the magnitude and variation of tack. Additionally, the results suggest that low speed tack measurements are quite useful for selecting solution inks containing polymeric substances that possess the desirable spreading, mixing, and pressing properties in high-speed/high volume printing and the component compatibility necessary for long-term performance.