Acrylic latex paint can be described as a Bingham plastic with a yield stress of \(20 \mathrm{~N} / \mathrm{m}^{2}\), a limiting viscosity of \(0.05 \mathrm{Ns} / \mathrm{m}^{2}\), and a density of \(950 \mathrm{~kg} / \mathrm{m}^{3}\). What is the maximum thickness at which a film of this paint could be spread on a vertical wall without running (dripping)?