Thermoplastic road marking paint also called hot melt marking paint, is a kind of powder paint. When applied as road surface markings, a hot melt kettle is used to heat it to 200 °C (392 °F) to melt the powder, after which it is sprayed on the road surface.
The coating then becomes a hard, polymer line after cooling. This paint is a thick coating as is wear-resisting, bright, and reflective.
In order to increase the antiskid performance of the line, thermoplastic paint has added reflective glass beads. Thermoplastic can be used very effectively for large anti-skid areas on roads and pedestrian walkways by adding glass beads. It hardens quickly and can be driven over after just a few minutes.