A pseudoplastic (shear thinning) paste rheology is best suited for high aspect ratio printing and is determined by the combination of all paste components. The paste viscosity will decrease as it passes through the screen. As the screen is peeled away from the substrate, the paste will flow together around the mesh while recovering to near resting viscosity. The paste should have minimal slumping for optimal fine line resolution, and it should retain its intended printed height and continuity. Drying of the solvents, burning out of the resins, and sintering of the conductive phase will reduce the wet thickness
volume by approximately 50%.