Bitumens (from Latin “bitumen” – fossil resin, crude oil) are heavy or retinoid products combining hydrocarbons and their nitrogen, oxygen, sulphur and metallic derivatives. Bitumens are water-insoluble, fully or partially soluble in benzene, chloroform, carbon sulphur and other organic solvents; its density is 0.95—1.50 g/cm³. Penetration grade bitumen is classified according to Penetration (ASTM D5) and Softening Point (ASTM D36).

Bitumen 40/50:

Bitumen 60/70:

Bitumen 80/100:


Main Applications:

In the construction and repair of road surface
In the construction and repair of airfield
Bonding material in production of asphalt-concrete mixtures


Constituents Specifications
Grade 40/50 60/70 80/100 Test Method
Penetration @ 25 Deg. C (mm/10) 40/50 60/70 80/100 D5
Softening Point (Deg. C) 52/60 49/56 45/52 D36
Ductility @ 25 Deg. C (cm/s) Min. 100 Min. 100 Min. 100 D113
Loss on Heating (WT%) Max. 0.2 Max. 0.2 Max. 0.5 D6
Flash Point (Deg. C) Min. 250 Min. 250 Min. 225 D92
Solubility in CS2 (WT%) Min. 99.05 Min. 99.05 Min. 99.05 D4
Drop in Penetration after Heating (%) Max. 20 Max. 20 Max. 20 D5
Specific Gravity @ 25Deg. C 1.01/1.06 1.01/1.06 1.001/1.05 D70 D3982


In drums