Description
Blown grade bitumen is widely used as an anti-slip layer compound in the piling industry, for manufacture of roofing felts, for sound dampening felts and under carriage sealant in the automobile industry, electric cable joint protection, joint filling compound, sealant compound and many others.

It is also used in the manufacture of bituminous marine mastic for the oil & gas pipeline joints. It comes in various grades such as Grade 10/20, 85/25, 85/40, 115/15. We are also capable of producing other grades of Blown Bitumen upon request by our customers.

Technical Advantages

Durability
Flexibility
Water Resistant
Chemical Stability

Application

Blown grade bitumen shall be broken up into small pieces (for blown grade in moulded cake form) and heated slowly to the application temperature of 220ºC to 230ºC.

Specification

Characteristic           R 10/20       R 85/25        R85/40        R115/15           Method

Relative density       1.00 - 1.06    1.00 - 1.06   1.00 - 1.05   1.01 - 1.06      ASTM D70
at 25 º C, g/ml     
     
Softening point         90 min        80-90            80-90          110-120          ASTM D36
(Ring and Ball), º C     
     
Penetration              10-20         20-30            35-45           10-20             ASTMD5
at 25 º C , 0.1 mm     
     
Flash point                200           200               200              200               ASTMD92
(Cleveland Open Cup) º C     

Loss on heating        0.5           0.2                0.5               0.2                 ASTMD6
% by mass     
     
Ductility                     2            3                   3                  2                   ASTMD113
at 25 º C cm, min     
     
Solubility                   99          99                 99                 99                  EN 12592 : 2000
in  toluene % wt min