Defiance visiline is a permanent thermoplastic road and car park marking system, consisting of preformed lines and symbols which are fused to the road surface. · · · Applied using a propane torch · · Contains retroflective glass beads which are self cleaning through normal trafficking · · Additional reflectivity can be created by further applications over newly laid markings. · · Ideal for repairs, remedial work and small contracts · · Recommended for use on laid surfaces over 6 weeks old · · Creates long-lasting road markings · · Improves visibility for drivers and pedestrians · · Can be used to trace the path of a blocked drain