Polymer Modified Bitumen

PMB is a highly specialized blend of Bitumen with high-quality polymer (Elastomeric) and is manufactured under carefully controlled conditions in a “State of Art” plant. PMB is an exceptionally versatile product with enhanced properties that makes it suitable for wearing course application under special conditions like high rainfall and high traffic.

# Properties PMB 40 PMB 70 PMB 120
1 Penetration at 25˚C, 0.1mm max 30-40 50-60 90-150
2 Softening Point, ˚C min 60 55 50
 3 Elastic Recovery of half thread in Ductilometer 15 ˚C, % min 70 70 70
 4 Flash Point, ˚C, min 220 220 220
 5 Separtion, difference in Softening Point, ˚C, min 3 3 3
 6 Thin Film Oven test and test on residue

Increase in Softening Point, ˚C, max
Reduction in Penetration at 25˚C, max
Elastic Recovery of half thread in Ductilometer
at 25˚C of residue, % min

 5
35
50		 6
35
50		 7
35
50
7 Ductility at 27˚C, cm +50 +60 +75
8 Viscosity at 150˚C, Poise 3-9 2-6 1-3