What is Vietnam Standard Thermoplastic Road Marking Paint and Key Testing Parameters
Vietnam Standard Thermoplastic Road Marking Paint (compliant with TCVN 8791:2011) is a hot-applied, durable material engineered for Vietnam’s tropical climate—high temperatures, heavy rainfall, and humidity. Composed of synthetic resins (e.g., C5 petroleum resin), titanium dioxide (for white), lead-free yellow pigments, glass beads, and mineral fillers, it is heated to 180–220°C for application and solidifies within 1–3 minutes upon cooling. Key advantages include long service life (2–5 years), strong adhesion to asphalt/concrete, and high retroreflectivity for nighttime safety, making it ideal for highways, urban roads, and industrial zones across Vietnam
Critical Testing Parameters per TCVN 8791:2011:
Softening Point: ≥100°C (typically 105–115°C) to resist heat deformation
Drying Time: ≤3 minutes (no wheel tracking), ensuring rapid use in humid conditions
Glass Bead Content: 20–30% (adjustable) for optimal reflectivity
Abrasion Resistance: ≤200 mg loss under JM-100 wheel testing, ensuring durability under traffic
Water/Alkali Resistance: No peeling or discoloration after 24-hour immersion in water or calcium hydroxide solution
Compressive Strength: ≥12 MPa (e.g., BOLE’s product achieves 26 MPa), validating load-bearing capacity
Skid Resistance: ≥45 BPN (British Pendulum Number) to prevent slipping
Luminance Factor: ≥0.70 for white, ≥0.50 for yellow (daylight visibility)
Additional checks cover heat stability (no degradation at 200°C for 4 hours) and environmental compliance (low VOC, lead-free formulations). These parameters ensure safety, longevity, and adherence to Vietnam’s road standards, minimizing frequent maintenance in challenging climates.
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