Epoxy is a durable roadway surface marking that is a plural component substance. It consists of a pigmented resin base and catalyst. The epoxy must be heated and sprayed proportionally to cure correctly. This marking can be applied to any road surface, new construction or old maintenance jobs with approved preparation. To make the markings visible at night, retroreflective glass beads are applied. The beads are applied from a separate gun immediately following the epoxy.

Epoxy is slower drying and typically lasts 3 to 5 times longer than paint.