FAST (fractured aggregate surface treatment) seal uses small size aggregate on an oil then sealed with emulsion or a rubberized binder so it glues the rock back together. Used in more rural areas than urban, the emulsion or rubberized oil is sprayed on prepared roadway first, then covered with aggregate, which is rolled in, and then sealed. ViaSun performs several combinations of FAST, or chip seal, like a CAPE seal (chip seal with a slurry seal on top it) and a tire rubber modified chip seal among others.