I are now living in a condo right over the Beach front. twelve yrs in the past we painted the exterior of our condo with a silicone based mostly elastomeric paint. It has held up very well. Nevertheless, the literature on the paint states 12 yrs is regarding the time http://marcoayhpk.link4blogs.com/18867676/can-i-paint-an-coquina-exterior-no-further-a-mystery