A method of producing a spray-dried, hydrous kaolin clay is disclosed that includes mixing a hydrous kaolin clay with water, an ammonium polyacrylate or polyacrylic acid, ammonium hydroxide, and a propanolamine selected from the group consisting of 2-amino-2-methyl-1-propanol, 2-methylamino-2-methyl-1-propanol, 1-amino-2-propanol, or mixtures thereof, to produce a viscosity stable dispersed slurry, and spray drying the slurry to produce the spray-dried, hydrous, kaolin clay. A spray-dried, hydrous kaolin clay is also disclosed.