In-line process for preparing paint

A process for preparing a container of paint comprising the steps of:

• a) feeding into a mixing chamber 1) an aqueous dispersion of polymer particles from a first pre-paint storage vessel and 2) either or both of i) an aqueous dispersion of opacifying pigment particles from a second pre-paint storage vessel and ii) an aqueous dispersion of a matting agent from a third pre-paint storage vessel;
• wherein each of the pre-paint storage tanks further comprise a rheology modifier;
• b) mixing the aqueous dispersions in the mixing chamber to form a fully blended paint;
• and
• c) dispensing the fully blended paint into a paint container;
• wherein the polymer particles have a z-average particle size in the range of from 50 nm to 600 nm.