Driving the Future of Roads: Experience the Next Level of Performance with HINCOL High-Quality Polymer Modified Bitumen (PMB).
HINCOL Polymer Modified Bitumen conforming to IS 15462 -2019. PMB specially designed and engineered Bitumen grade manufactured using Viscosity-Grade Refinery Bitumen and High-Quality Polymer. It offers higher resistance to permanent deformation at elevated temperatures, better water resistance, high elastic recovery, high skid resistance, and better edge resistance properties.
HINCOL PMB | Polymer Modified Bitumen Manufacturer & Supplier India
HINCOL Polymer Modified Bitumen conforming to IS 15462:2019 — branded as COLFLEX® — is a specially designed and engineered bitumen grade manufactured using Viscosity-Grade Refinery Bitumen and High-Quality Polymer. It offers higher resistance to permanent deformation at elevated temperatures, better water resistance, high elastic recovery, high skid resistance, and better edge resistance properties. Available in IS grades (PMB 40/70/120), Performance Grades (Colflex PG 64-10 to 82-10, 76-22), and special airport grade PMB RW4560.
What’s COLFLEX®
COLFLEX® is a premium range of polymer-modified binders, engineered by enhancing conventional viscosity grade bitumen with advanced polymers. This modification significantly improves the binder’s cohesion, elasticity, and resistance to thermal deformation — especially on heavy duty roads at high service temperatures.
HINCOL’s polymer-modified binders are manufactured to meet the standards of IS 15462, as well as international Performance Grade specifications (AASHTO M320 and M332). Colflex® binders offer extended pavement life, reducing maintenance frequency and cost. Enhanced workability across a broader temperature range gives contractors greater flexibility during construction.
Exceptional High-Temp
Rut resistance — sustains heavy axle loads
Superior Low-Temp
Tackles thermal cracking in cold climates
Manufactured to Spec
AASHTO M320 / T350 along with IS 15462
Longer Pavement Life
Reduces maintenance frequency and lifecycle cost
Globally Accepted
Proven technology backed by COLAS expertise
Capability & Capacity
Delivering any quantity across India on-time
| Characteristics | Colflex PMB 64-10 | Colflex PMB 70-10 | Colflex PMB 76-10 | Colflex PMB 82-10 | Colflex PMB 76-22 | Colflex RW4560/S BS 5-50 | Annex | IS/ASTM |
|---|---|---|---|---|---|---|---|---|
| (A) TESTS TO BE CARRIED OUT ON ORIGINAL BINDER | ||||||||
| Softening Point (R&B), °C (min) | 60 | 65 | 70 | 80 | 75 | 85 | — | IS 1205 |
| Penetration, dmm, at 25°C | — | — | — | — | — | 40–60 | — | — |
| Elastic Recovery at 15°C, % (min) | 70 | 70 | 70 | 85 | 80 | 85 | Annex A | — |
| Flash Point, COC, °C (min) | 230 | 230 | 230 | 230 | 230 | 230 | — | IS 1209 |
| Viscosity at 150°C, Pa·s (max) | 1.2 | 1.2 | 1.2 | 1.6 | 1.5 | 1.5 | — | ASTM D 4402 |
| G*/Sin δ Min 1.0 kPa — Temperature °C | 64 | 70 | 76 | 82 | 76 | — | Annex B | — |
| Phase Angle (δ), degree (max) | 75 | 75 | 75 | 75 | 75 | — | Annex B | — |
| Separation, Diff. in SP (R&B), °C (max) | 3 | 3 | 3 | 3 | 3 | 3 | Annex C | — |
| FRAASS breaking point, °C (max) | −10 | −10 | −10 | −10 | −22 | −10 | — | IS 9381 |
| (B) TESTS TO BE CARRIED OUT ON RTFO RESIDUE — IS 15799 | ||||||||
| Loss in mass, % (max) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | — | IS 9382 |
| G*/Sin δ Min 2.2 kPa — Temperature °C | 64 | 70 | 76 | 82 | 76 | — | Annex B | — |
| MSCR Test | As per AASHTO M332 / T350 — S, H, V, E categories | Annex D | — | |||||
MSCR Compliance: All Performance Grade Colflex® PMBs meet AASHTO M332 / IS 15462 requirements for MSCR performance categories (S — Standard, H — Heavy, V — Very Heavy, E — Extreme) as applicable for intended applications and temperature ranges.
Colflex® PMB Grade Suitability by Application
Recommended Colflex® grades for different road and pavement applications.
| Application | Colflex PMB 64-10 | Colflex PMB 70-10 | Colflex PMB 76-10 | Colflex PMB 82-10 | Colflex PMB 76-22 | Colflex RW4560 |
|---|---|---|---|---|---|---|
| Expressways | ✓ | ✓ | ✓R | ✓ | ✓R | ✓ |
| Heavy Duty Traffic Highways | ✓ | ✓ | ✓ | ✓R | ✓ | ✓R |
| Bridges | ✓ | ✓ | ✓ | ✓R | ✓ | ✓R |
| Airfield Pavements | ✓ | ✓ | ✓ | ✓R | ✓ | ✓R |
| Racetracks | ✓ | ✓ | ✓R | ✓ | ✓R | ✓ |
✓ Suitable | ✓R Recommended
Choose the Right PMB Grade for Your Project
HINCOL PMB is available in three IS 15462:2019 grades selected by climate, plus a special airport runway grade.
PMB 40 — Hot Climate
Penetration 30–50 dmm | SP ≥ 60°CHighest softening point — expressways, airport runways, bus lanes in hot states: Rajasthan, Gujarat, AP, Maharashtra.
PMB 70 — Moderate Climate
Penetration 50–90 dmm | SP ≥ 55°CMost versatile grade — state highways, national highways, flyovers, bridges, and urban expressways across most Indian states.
PMB 120 — Cold Climate
Penetration 90–150 dmm | SP ≥ 50°CMaximum flexibility at low temperatures — mountain highways, J&K, Himachal Pradesh, Uttarakhand, Northeast India.
PMB RW4560 — Runway & SAMI
Airport / Defence / SAMI GradeSpecially formulated for airport runways (commercial & defence), SAMI (Stress Absorbing Membrane Interlayer), and test tracks.
| Property | PMB 40 | PMB 70 | PMB 120 | Test Method |
|---|---|---|---|---|
| Penetration at 25°C, 0.1 mm | 30 – 50 | 50 – 90 | 90 – 150 | IS 1203-1978 |
| Softening Point (R&B), °C (min) | 60 | 55 | 50 | IS 1205-1978 |
| Elastic Recovery (half thread, 25°C) % (min) | 75 | 75 | 75 | IS 15462 |
| Flash Point, °C (min) | 220 | 220 | 220 | IS 1209-1978 |
| Separation — Diff. in Softening Point, °C (max) | 3 | 3 | 3 | IS 15462 |
| Ductility at 27°C, cm (min) | >50 | >60 | >75 | IS 1208-1978 |
| Viscosity at 150°C, Poise | 3 – 9 | 2 – 6 | 1 – 3 | IS 15462 |
| TEST ON RESIDUE (TFOT) | ||||
| a. Increase in Softening Point, °C (max) | 5 | 6 | 7 | IS 1205-1978 |
| b. Reduction in Penetration at 25°C, % (max) | 35 | 35 | 35 | IS 1203-1978 |
| c. Elastic Recovery (half thread, 25°C) % (min) | 50 | 50 | 50 | IS 15462 |
All values as per IS 15462:2019 / IS 15462:2004 and IRC SP 53-2002.
Recommended Application Temperatures
| Process | Temperature Range |
|---|---|
| ▶ Mixing with Aggregates | 170 – 185°C |
| ▶ Laying | 150 – 170°C |
| ▶ Beginning of Compaction | Over 140°C |
| ▶ End of Compaction | 110 – 120°C |
Airport Runways & Aprons
Commercial and defence airport runways, taxiways, and aprons. Grade: PMB 40 or PMB RW4560.
Expressways & Heavy Traffic
National expressways, 4/6-lane highways, and NHAI projects requiring superior rutting resistance.
Race Tracks & Test Tracks
Motorsport race tracks and automotive test tracks — extreme skid resistance and deformation resistance.
Bridges & Flyovers
Bridge deck wearing courses and SAMI applications to prevent reflective cracking.
Mining & Container Roads
Mining haul roads, container terminals, and ports with concentrated heavy axle loads.
Slopes, Roundabouts & Junctions
Areas with slow-moving heavy vehicle loads requiring maximum deformation resistance.
Coastal & Desert Roads
Roads in extreme coastal and desert environments requiring superior water resistance and temperature stability.
Bus Lanes & Heavy Parking
Dedicated bus corridors, truck terminals, and heavy vehicle parking with repeated stationary loads.
Bulk Supply — Tanker / Hot Bitumen
HINCOL PMB / COLFLEX® supplied in hot bulk via insulated bitumen tankers to project mixing plants. Pan-India supply from strategically located plants.
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PMB 40 · PMB 70 · PMB 120 · PMB RW4560 · Colflex PG Grades | Bulk Supply | Pan-India | NABL-Tested
Related HINCOL Bitumen Products
Frequently Asked Questions — PMB & COLFLEX®
What is COLFLEX® PMB?
COLFLEX® is HINCOL’s premium range of polymer-modified binders, engineered by enhancing conventional viscosity grade bitumen with advanced polymers — improving cohesion, elasticity, and resistance to thermal deformation. Manufactured to IS 15462, AASHTO M320 and M332. Available grades: Colflex PMB 64-10, 70-10, 76-10, 82-10, 76-22, and RW4560/S BS 5-50.
What is PMB full form in road construction?
PMB full form is Polymer Modified Bitumen. It is premium bitumen blended with high-quality elastomeric polymers (SBS — Styrene-Butadiene-Styrene). HINCOL PMB (COLFLEX®) is manufactured as per IS 15462:2019, IRC SP 53-2002, and AASHTO M320 / M332.
What is the IS code for PMB?
The IS code for PMB is IS 15462:2019 (updated from IS 15462:2004) — Polymer and Rubber Modified Bitumen Specification. HINCOL PMB also conforms to IRC SP 53-2002 and international standards AASHTO M320 and AASHTO M332.
What is the difference between PMB 40, PMB 70, and PMB 120?
- PMB 40 — Penetration 30–50, SP ≥ 60°C — hot climatic areas (Rajasthan, Gujarat, AP)
- PMB 70 — Penetration 50–90, SP ≥ 55°C — moderate climatic areas (most Indian states)
- PMB 120 — Penetration 90–150, SP ≥ 50°C — cold climatic areas (J&K, Himachal, Uttarakhand)
All three grades: Elastic Recovery ≥ 75% at 25°C, Flash Point ≥ 220°C, Separation ≤ 3°C.
What is PMB RW4560 and where is it used?
PMB RW4560 (Colflex RW4560/S BS 5-50) is specially formulated for airport runways (commercial and defence), SAMI applications on bridge decks, and racetracks. Meets stringent requirements for extreme load bearing, skid resistance, and rutting resistance.
What is MSCR Test and MSCR Compliance?
MSCR (Multiple Stress Creep Recovery) is a binder test under AASHTO TP 70 / T350 measuring rutting resistance and elastic response. AASHTO M332 / IS 15462 classify PG binders into: S (Standard), H (Heavy), V (Very Heavy), E (Extreme). All Colflex® PG grades are MSCR-compliant.
What is the difference between PMB and CRMB?
- PMB — modified with synthetic SBS polymer. Elastic recovery ≥ 75% at 25°C. Branded as COLFLEX® by HINCOL.
- CRMB — modified with recycled crumb rubber from end-of-life tyres. Elastic recovery ≥ 50% at 15°C. Eco-friendly.
Who are PMB manufacturers and suppliers in India?
Hindustan Colas Limited (HINCOL) is a leading PMB manufacturer and supplier in India — JV between HPCL and COLAS S.A. France. HINCOL manufactures PMB under the COLFLEX® brand and supplies to NHAI highway projects, airport authorities, state PWD, and private road developers across India.
Manufactured to the Highest Standards
Every HINCOL PMB / COLFLEX® batch is tested in our NABL-accredited laboratories before dispatch — covering penetration, softening point, elastic recovery, flash point, ductility, viscosity, separation, FRAASS breaking point, and MSCR compliance. Our manufacturing is certified under ISO 9001:2015 and fully conforms to IS 15462:2019, IS 15462:2004, IRC SP 53-2002, and AASHTO M320 / M332. Backed by COLAS SA France — global leader in road construction, 50+ countries.