Medium Curing cutback bitumen

MC30, MC70, MC250, MC800, MC3000

Bitumen MC70

BS group Bitumen MC70 is medium curing (MC) cut-back asphalt. Cutback bitumen MC-70 is dissolved of bitumen in solvents of kerosene.

The diluent temporarily reduces the viscosity of the asphalt cement for ease of handling and application. After application, the diluent evaporates, leaving asphalt cement to perform its function.

Cutback bitumen is ideal for prime coat and cold applied. Because of its easy uses and no need to thinning and heating.


Typical properties of bitumen MC70

BS group guaranty quality of cutback MC-70 with arrangement of international inspector. By checking quality and quantity of bitumen on each shipment during loading to vessel. Also controlling the production by QC team via batch test report before shipping.

Here are properties of BS group Bitumen cutback MC70 which is classified by ASTM/EN15322:2009.


Bitumen MC 70



Test Method

Kinematic Viscosity@ 60°C (cSt)


ASTM D-2170

Flash Point (top open cuo) (°C)

38 min

ASTM D-3143

Water Content (%vol)

0.2 max


Distillate, %volume of total distillate to @ 360°C:


to 225°C

20 max

ASTM D-402

to 260°C



to 316°C



Residue from Distillation to 360°C (%Vol by difference)

55 min

ASTM D-402

Test on Residue from Distillation

Penetration @ 25°C (dmm)



Ductility @ 25°C (cm)

100 min

ASTM D-113

solubility in Trichloroethylene (%wt)

99 min

ASTM D-2042



Cutback bitumen MC70 consist of initial incorporation of asphalt into the surface of non-asphalt based course preparatory to any superimposed treatment of construction.

In addition, cutback asphalt MC-70 applying to waterproofing of surfaces, plug capillary voids, coat and bond loose mineral particles.

This kind of bitumen is suitable to be used in Roofing – As a waterproofing membrane and as an adhesive to stick chippings onto a flat, horizontal roof to minimize the effects of weathering from the sun.



BS group Bitumen MC30 is available in: Bulk and New Steel Drums (220 lit)



The Delivery can be done in all terms like: FOB, CFR and CIF for more information feel free to send us your inquiry.


Contact information

BS group provides wide range of bituminous products and offers road maintenance solutions to clients base on their needs
Address: No1, Mobtakeran 4 St, Birjand industrial zone, Iran
Phone: +98-5632420200
Fax: +98-5632255130
Email: info[at]