What is BS 3262 Thermoplastic Road Marking Paint and Key Testing Parameters
BS 3262 thermoplastic road marking paint is a British Standard-compliant, hot-applied material used for durable, high-visibility traffic lines. Composed of synthetic resins (e.g., C5 petroleum resin), pigments (titanium dioxide for white, lead-free alternatives for yellow), glass beads, and mineral fillers, it is heated to 180–220°C for application and solidifies within 1–3 minutes upon cooling. Key properties include exceptional durability (2–5 years), retro-reflectivity for nighttime visibility, and skid resistance
Critical Testing Parameters per BS 3262:
Softening Point: 90–125°C (varies by climate zone)
Density: Approx. 2.0 g/cm³
Glass Bead Content: ≥20% (embedded for reflectivity)
Compressive Strength: ≥12 MPa (ensures traffic wear resistance)
Luminance Factor: ≥70 for white, ≥50 for yellow (color visibility standards)
Flowability: ≤25% after 40–48 hours (tests material stability)
Skid Resistance: ≥45 BPN (anti-slip safety requirement)
Adhesion & Durability: Assessed via water/alkali resistance (24-hour immersion tests)
Additional checks include TiO₂ content (≥10% for whiteness), storage stability (1-year shelf life), and environmental compliance (low VOC, lead-free formulations)
These parameters ensure safety, longevity, and compliance with international road standards.
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