  Withdrawing a plate from a suspension leads to the entrainment of a coating
layer of fluid and particles on the solid surface. In this article, we study
the Landau-Levich problem in the case of a suspension of non-Brownian particles
at moderate volume fraction $10\% < \phi < 41\%$. We observe different regimes
depending on the withdrawal velocity $U$, the volume fraction of the suspension
$\phi$, and the diameter of the particles $2\,a$. Our results exhibit three
coating regimes. (i) At small enough capillary number $Ca$, no particles are
entrained, and only a liquid film coats the plate. (ii) At large capillary
number, we observe that the thickness of the entrained film of suspension is
captured by the Landau-Levich law using the effective viscosity of the
suspension $\eta(\phi)$. (iii) At intermediate capillary numbers, the situation
becomes more complicated with a heterogeneous coating on the substrate. We
rationalize our experimental findings by providing the domain of existence of
these three regimes as a function of the fluid and particles properties.
