MC 70

The cutback bitumen is homogeneous and will not foam (as observed visually) when heated to application temperature.

The various grades of cutback bitumen (medium curing type) conform to requirements prescribed below:

Properties                                                 MC-70 (MIN/MAX)               Technically Identical with

Kinemalic 1 viscosity at 60^C, eSt                  70/140                               ASTM D2170

Flash Point (Tag Open-cup), ^C                      38/-                                    ASTM D1310

Distillate Test 2:                                                  -/10                                   ASTM D402

Distillate, percent by Vol. of

total distillate to 260^C                                     10/55

To 190^C                                                             40/80

To 225^C                                                             75/95

To 260^C

To 316^C

Residue from distillation to 360^C,

percent volume by different test on residue

from distillation                                                  55/-

Penetration at 25^C, cm                                  120/250                                ASTM D402 / ASTM D5

Solubility in trichlorethylene,

percent mass                                                    100/-                                     ASTM D402 / ASTM D113

Water, percent volume                                      99.0/-                                  ASTM D402/ASTM D2024

Water, percent volume                                      -/0.2                                    ASTM D95

Uses - Priming of all non-bituminous road buses, provision of temporary surfaces (deviations)

Application Rate - From 0.6 litre per m2 to 1.2 litre per m2

Spraying / Application Temperature - 60/80^C