Medium Curing

MC30, MC70, MC250, MC800, MC3000

Cutback MC70

Bitumen cutback MC70 is medium curing (MC) cut-back asphalt consisting of penetration grade asphalt cement and diluents or cutter of medium volatility. Cutback MC-70 use in the road maintenance industry where it is used as a prime coat of the base course prior to placing the bituminous surface course.

The diluents temporarily reduce the viscosity of the asphalt cement for ease of handling and application.


Application of Bitumen Cutback MC70

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

The cutback asphalt MC70 applying to waterproofing of surfaces, plug capillary voids, coat and bond loose mineral particles.


Bitumen MC70 Specification

Kiapetro guarantees that the Bitumen Cutback mc70 is produced in compliance and conformity to International of Standard ASTM/EN15322:2009, also meets the requirements of the following specification.


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


The founders in the year 2012 have established the Kiapetro company with the aim of better providing and making use of Bitumen and Petroleum Products.


Unit4, Building 1,South Bahman, Mahmudieh Street, Zafaraniyeh, Tehran, Iran

Phone: +98-21-22038596