YNM Editorial
YNM Safety Technical Team
Stones are not kerbs — but they use the same chemistry
Route markers take yellow/black or white/black blocking so chainage is readable at speed and at night. Enamel paint with reflectivity is still the usual named system because the film is high-gloss, bead-receptive and familiar to NHAI maintenance contractors.
Prep decides whether the gloss lasts
Dusty, laitance-heavy concrete sheds enamel in a season. Wire-brush or wash, let the stone dry, then coat. Beads go on while the film can still wet them — the same rule as kerb work, smaller surface.
Do not substitute decorative enamel
Household or furniture enamel is not a road-marker product. Use the infrastructure grade on the enamel paint with reflectivity page and keep IS 164 paperwork with the stone-painting method statement.
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