For this project we first CNC routed letters out of 50mm thick MDF. We made sure to double check every stage of the cutting process as the material was rather heavy to handle. After all the letters were cut we sand sealed them all. A sand seal is a spray application of asphalt emulsion followed with a light covering of fine aggregate, such as a clean sand or screenings. It can be useful in correcting a number of material flaws. Once sand seal application was all dry we painted them with 2K paint, allowing a beautiful smooth professional finish to the surface.