Abstract: A method to saponify the naturally-occurring acids found in asphalts is disclosed. The method utilizes sodium hydroxide (or other strong base), added to asphalt which is then subjected to high shear mixing, at an elevated temperature. The method disclosed may be used in conjunction with polymers and other modifiers added to asphalt to enhance the asphalt's performance. The asphalt prepared in accordance with the method is used in road applications, roofing applications and numerous specialty applications which use asphalt as the base material. The asphalt prepared in accordance with the method can be used hot, liquefied with solvents or emulsified with water and surfactants.