Thermoplastic Road Marking Paint 101: Why Hot-Applied Beats Cold Paint on Indian Roads

Faded lane lines are one of the most common problems on Indian roads. Ordinary cold paint looks bright on the day it is applied, then wears away under heavy trucks, monsoon rain and harsh sun within months. That is why highways, expressways, campuses and industrial roads increasingly use hot-applied thermoplastic road marking. This guide explains what thermoplastic is, why it outlasts cold paint on Indian roads, where cold paint and epoxy still make sense, and how KT India applies a complete marking system, with road studs and solar studs, for safer roads day and night.

Hot thermoplastic is melted and laid as a thick, raised line, with glass beads dropped on for night visibility.
KT India road marking and stud range

Product	Best for	Key details
KTI Thermoplastic Road Painting Hot Process	Roads, highways, campuses, plant roads	Hot-applied thermoplastic, reflective, long-lasting
KTI Thermoplastic Road Painting Cold Process	Parking, low-traffic internal roads	Cold-applied marking paint
KTI Parking Painting Charges Cold Process	Parking bays	Cold process yellow/white, primer included
KTI Epoxy Paint for yellow line marking 3208	RCC and bituminous floors	Epoxy yellow line marking
KTI Yellow Line Marking 100 mm wide	Factory aisles and warehouses	100 mm yellow epoxy line
KTI Road Stud Without Shank Make 3M White Body Red Reflector	Highways, edge lines	3M shankless, microprismatic red reflectors
Road Stud Without Shank Make 3M Yellow Body Yellow Reflector	Medians, highways	3M yellow, 2-way yellow reflectors
Road Stud With Two Shank Make 3M	Pedestrian crossings, lane lines	3M two-way studs with shanks
KTI Road Stud Without Shank Make OEM Yellow Body Yellow Reflector	Campus and plant roads	OEM yellow road stud
Road Stud With Two Shank Make OEM Yellow Body Red Reflector	Construction zones	OEM yellow body, red reflector
Road Stud Rectangular Yellow	Heavy-duty roads	Rectangular yellow, weather-resistant
Aluminium Stud	Industrial roads	Red aluminium stud
Solar Stud Without Shank Yellow	Unlit roads, curves	Solar LED stud, yellow
Solar Stud Without Shank Red	Highways, edges	Solar LED stud, red, aluminium body
KTI Solar Stud With Shank Red	Concrete roads	Solar LED stud with shank
Solar Stud Round shape	Roundabouts, jetties	360° flicker, visible up to 800 m, IP65
Road Stud Installation	All of the above	Professional stud installation

What is thermoplastic road marking?
Thermoplastic is a solid mix of resin binder, pigment, fillers and glass beads. It is supplied as a powder or blocks, melted in a heated kettle at around 180 to 200°C, and laid on the road as a thick, hot line, typically about 2.5 to 3 mm. More glass beads are dropped on the surface while it is still hot. Within minutes it cools and hardens into a raised, solid stripe that is bonded to the road. Our thermoplastic road painting (hot process) service covers surface cleaning, primer, application and beads.
Why hot-applied beats cold paint on Indian roads

• Durability: a 2.5 to 3 mm thermoplastic line lasts years on a busy road, while a thin cold paint film may need repainting within months.
• Night visibility: glass beads mixed in and dropped on the surface reflect headlights back to the driver. As the top wears, fresh beads are exposed, so the line keeps reflecting.
• Wet visibility: the thick, raised line stays above a film of rainwater better than flat paint.
• Fast opening: thermoplastic sets in minutes, so lanes can reopen quickly, which matters on highways and busy plant roads.
• Lower lifetime cost: the first cost is higher, but fewer repaints and less traffic disruption usually make it cheaper over its life.

Thermoplastic vs cold paint: a quick comparison

• Film thickness: thermoplastic is about 2.5 to 3 mm; cold paint is a thin film of a fraction of a millimetre.
• Application: thermoplastic needs a heated kettle and a trained crew; cold paint can be applied with rollers, brushes or a simple sprayer.
• Drying: thermoplastic sets in minutes as it cools; cold paint takes longer to dry, depending on the weather.
• Best use: thermoplastic for roads with moving traffic; cold paint and epoxy for parking areas, covered spaces and floors.
• Maintenance: thermoplastic needs touch-ups after years; cold paint on busy roads usually needs repainting far more often.

Where cold paint and epoxy still make sense
Thermoplastic is not the answer for every surface. For basement and covered parking, cold-applied paint is easier and quicker; KT India offers cold-process road marking and cold-process parking painting with primer. On RCC floors, warehouses and factory aisles, epoxy yellow line paint and the standard 100 mm yellow line marking resist forklifts, oil and cleaning chemicals.

Cold-applied paint and epoxy suit basement parking, warehouses and factory floors.
How thermoplastic marking is applied, step by step

1. Survey and layout: mark the lane, centre line, edge line, zebra crossings, stop lines and arrows as per the drawing and IRC guidance.
2. Clean the surface: remove dust, loose material, oil and old flaking paint. The road must be dry.
3. Apply primer (tack coat), especially on concrete or old, polished bitumen.
4. Melt the material in the heated kettle to the right temperature. Overheating spoils it; underheating causes poor bonding.
5. Lay the line with a screed or extrusion applicator at the specified width and thickness.
6. Drop glass beads immediately on the hot surface for night reflectivity.
7. Let it cool for a few minutes, then open to traffic.
8. Add road studs: fix studs along lane and edge lines with the right adhesive via our road stud installation service.

Complete the system with road studs and solar studs
Lines tell drivers where to go in daylight; studs tell them at night, in fog and in heavy rain. Use 3M yellow studs on medians, 3M white studs with red reflectors on edges, 3M two-shank studs at pedestrian crossings, and economical OEM yellow studs, OEM two-shank studs, rectangular studs or aluminium studs on campus and plant roads. On unlit roads, sharp curves, ghats and roundabouts, solar studs such as the yellow solar stud, red solar stud, solar stud with shank and round solar flicker (visible up to 800 m) flash with their own LEDs.

Thermoplastic lines with glass beads, plus road studs and solar studs, keep lanes visible at night and in rain.
Recommended marking by site type

• Highway, expressway or city road: hot thermoplastic lines with glass beads, 3M road studs and solar studs on curves and medians.
• Industrial plant, SEZ or logistics park roads: hot thermoplastic lane and edge lines, zebra crossings and arrows, with OEM or aluminium studs.
• Campus, township or hospital roads: thermoplastic centre lines, speed-breaker marking and pedestrian crossings with two-shank studs.
• Basement and covered parking: cold-process parking paint for bays, arrows and numbering.
• Warehouse and factory floors: epoxy 100 mm yellow aisle lines.

Frequently asked questions
How long does thermoplastic marking last?
Typically several years on normal roads, depending on traffic, surface and maintenance, which is much longer than conventional cold paint.
Can it be applied on concrete?
Yes, with the right primer. Very smooth or new concrete must be prepared first.
Can it be applied in the monsoon?
Only on a dry surface. Plan work in dry weather windows.
How quickly can traffic use the road?
Usually within minutes, once the line has cooled and hardened.
Make your roads visible, day and night. Explore thermoplastic road marking, parking paint and road studs, or use Enquiry Now for a site survey and quote.