Hot Melt Thermoplastics are solid road marking materials at ambient temperature, which melt to liquid when heated at high temperature (between 180 and 220°C).
Key Features of Thermoplastic Materials :
Immediate drying allow immediate opening of the road to traffic
Very long durability, as the are applied as thick layers (usually 1.5 to 3mm)
Good quality vs. price ratio (very low priceof the materials)
High night visibility until teh end of its use life, as they incorporate glass beads into its composition
Scope of Use:
Asphalt and bitumen pavements
Relining over hot thermoplastics, worn out alkyd and acrylic paints.
Limitations:
Not suitable for applications over concrete pavements. use primer if needed.
After opening to traffic, soiling of road markings may occure depending on the road,traffic and weather, due to its roughness.
Application method:
Hot applications after melting the material at indicated temperature. Lower temperature may cause low adherence pf materials.
Road marking machine must be capable of automatically apply and control dosage and homogeneity
Storage:
Protect from open storage and extreme temperature changes
Use paint within one year from fabrication date
Cautions:
Do not overheat materials above its safety temperature keep the heated material constantly stirred, and use within six hours
Do not subject the materials to more than four cycles of heating and cooling
Thermoplastics are commonly used for:
Heavy traffic urban roads and highways
Edge profiled lines
Linear rumble strips
Heavy traffic urban streets: Lane lines, central edge lines, symbols (arrows, numbers, letters),pedestrian crossing