Methyl Methacrylate is a nonhazardous, two-component, durable pavement marking material. The material exists as a solid that is mixed in a static mixer immediately prior to application. MMA can be sprayed or extruded onto the pavement. The material forms a strong bond to the pavement surface by exothermic reaction (release of heat) that occurs during the mixing process.

Methyl methacrylate was originally marketed as an environmentally friendly alternative to solvent-borne paints. However, MMA has been shown to provide much longer service life than standard traffic paint. A service life of greater than three years is common. In addition, the material is designed to be resistant to oils, antifreeze, and other common chemicals found on the roadway surface. MMA reportedly bonds well to concrete pavements. MMA materials are usually applied at thicknesses of 40 mils. Because MMA does not rely on the addition of heat to cure, it is an attractive material in cold-weather climates. Research in cold-weather climates has shown very good performance for MMA. Costs for methyl methacrylate have been reported to be comparable to those of epoxy materials. As with all other two-component marking materials, a drawback to the use of MMA is that it requires special equipment for application. Table 2-17 summarizes recommended use of methyl methacrylate pavement markings on concrete.