Surface coatings give mechanical protection as well as optical and financial appreciation to surfaces of any kind. Dirt pick-up or bio-fouling of coatings are accordingly not only optically adverse progresses but lower the value of the coated object. To minimize the loss of protection and depreciation due to dirt pick-up and bio-fouling, coatings are renewed on a regular basis, with accompanied costs for material and labor. Here, an improvement of the coating and a resulting cleaner and more resistant surface for a longer period of time would give a longer service life and thus reduced costs for the user. This paper reports strategies to decrease dirt pick-up and bio-fouling of coatings with the addition of silica particles.