What is the minimum required Skid Resistance Value (SRV)?

The SRV shall be a minimum of 45 (Clause 5.4).

What is the required binder content in the thermoplastic material?

The binder content must be a minimum of 18.0 percent by mass (Table 1).

What are the minimum initial retro-reflectivity values for markings?

For white markings, it is ≥ 150 mcd/lux/m², and for yellow, it is ≥ 100 mcd/lux/m² (Clause 5.7).

What is the specified content for intermix glass beads?

The glass bead content must be between 30 and 40 percent by mass of the total material (Table 1).

IS 15682

: 2017

Hot Applied Thermoplastic Road Marking Materials - Specification

CurrentFrequently UsedSpecificationTransportation · Roads and Pavement

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This standard specifies the requirements for hot-applied thermoplastic materials used for marking on road surfaces. It covers the material's composition, physical properties like colour, luminance, skid resistance, and retro-reflectivity, as well as sampling and testing methods.

Specifies requirements for hot-applied thermoplastic materials used for durable pavement markings on roads and highways.

Quick Reference Values

Binder Content (min)18.0 % by mass

Glass Beads (Intermix) Content30 to 40 % by mass

Skid Resistance Value (SRV) (min)45

Luminance Factor (White) (min)70 %

Luminance Factor (Yellow) (min)45 %

Softening Point95 to 115 °C

Initial Retro-reflectivity (White, min)150 mcd/lux/m²

Initial Retro-reflectivity (Yellow, min)100 mcd/lux/m²

Practical Notes

Proper pavement surface preparation (clean, dry, and dust-free) is critical for achieving good adhesion.

The material application temperature, typically between 180°C and 210°C, must be strictly controlled to prevent material degradation and ensure performance.

Immediate and uniform application of drop-on glass beads is essential for achieving the required initial retro-reflectivity.