Dropon/Pre-mix beads are used for road marking, striping highways and
airport runways. Traffic markings and road signs are clearer when these beads
are employed, leading to safer night driving conditions. Beads with higher
refractive index are used for road safety signs.
Premix beads are mixed with the paint prior to painting the roads. As the
paint layers wear, the beads get exposed giving the enhanced visibility of
road markings. Dropon beads are dropped on the freshly painted surfaces on
the roads to give immediate enhanced visibility to night drivers.
There are three versions of Dropon paint available - normal, moisture-proof
and flotation types. The moisture-proof version has a special coating given
to the surface of the beads which prevents agglomeration of the beads due
to moisture. Because of this, the beads flow more easily resulting in the
ease of application using dispensers. The flotation beads are coated with
a special material which alters surface tension properties of the beads.
During the road marking process, the applied beads float on the surface of
the wet paint. Upon drying, roads marked with flotation beads will have higher
initial levels reflectivity than those marked with normal beads.