Product Details


Polymer modified bitumen (PMB) is bitumen combined with one or more polymer materials. This modification is done with the aim of enhancing the mechanical properties of the bitumen material. Polymer modified bitumen is typically used on road pavements, particularly those that are intended to withstand heavy-duty traffic and extreme weather conditions. This material is also used as a sealant in residential roofing applications. PMB is typically made by combining bitumen with a styrene-butadiene-styrene (SBS) copolymer. The addition of the polymer makes the bitumen more elastomeric in nature. Some of the desirable properties of polymer modified bitumen include improved strength, cohesiveness and resistance to fatigue and deformation. PMB also possesses less temperature sensitivity than plain bitumen. This is particularly crucial for pavement applications because the material will not flow or become soft in high temperatures while it maintains its workability and flexibility in colder temperatures. Styrene-butadiene styrene (SBS), which acts as a binder modification agent, is known to increase the longevity of pavements that are subjected to a range of onerous loading on a daily basis including high traffic loading and high thermal stresses. Other benefits of PMB when used in pavement applications include:

  1. Enhanced rigidity
  2. Improved resistance to deformation
  3. Improved resistance to cracks and stripping
  4. Increased durability
  5. Enhanced water resistance
polymer modified bitumen


Stronger road with increased stability and greater rigidity.

Better resistant towards rainwater and water stagnation.

Better resistance to permanent deformation

Reduction in pores in aggregate and hence less rutting and ravelling.

Much higher durability

Characteristics Grade & Requirements
PMB120 PMB70 PMB40
Penetration at 25℃, 0.1 mm, 100 g, 5 s. 90 to 150 50 to 90 30 to 50
Softening point (R&B), ℃, Min 50 55 60
FRAASS breaking point1), ℃, Max -20 -16 -12
Flash point, COC, ℃, Min 220 220 220
Elastic recovery of half thread in ductilimeter at 15 ℃, percent, Min 70 70 70
Complex modulus as (G*/ sin δ as Min 1.0 kPa at 10 rad/s, at temperature ℃) 52 58 70
Separation, difference in softening point (R&B), ℃, Max 3 3 3
Viscosity at 150℃, Poise 1-3 2-6 3-9
Thin film oven test and tests on residue:
a) Loss in mass, percent, Max 1.0 1.0 1.0
b) Increase in softening point, ℃, Max 7 6 5
c) Reduction in penetration of residue, at 25℃, percent, Max 35 35 35
d) Elastic recovery of half thread in ductilimeter at 25 ℃, percent, Min 50 50 50
OR Complex modulus as (G*/ sin δ as Min 2.2 kPa at 10 rad/s, at temperature ℃) 52 58 70
Relevant to snow bound cold climate areas

PREMIUM PETRO PRODUCTS. Our firm is manufacturing all types of Emulsion and Modified Bitumen and importing Bitumen (both Bulk and Packed) from Middle East countries.

  • +91-9672007111

  • +91-8875999962


  • Premium Petro
    1-3, Hathroi Market Opp. Gopal Bari, Ajmer Road Jaipur, Rajasthan 302001