A method of making a metered dose valve or a component including the step of forming a coating on at least a portion of a surface of the valve or the component, wherein said coating comprises a particulate material selected from the group consisting of Magnesium Stearate, Calcium Stearate, Zinc Stearate, Aluminium Stearate, Stearic acid, Magnesium Palmitate, Calcium Palmitate, Zinc Palmitate or Aluminium Palmitate, Palmitic acid, and mixtures thereof.
