Penetration Bitumen is a semi-hard black material known as Petroleum Grade Bitumen which is produced by blowing hot air into the vacuum bottom.
Bitumen Penetration which is produced during the process of oxidation of vacuum bottom in distillation tower and its penetration grade is between 60 & 70.
The most common usage of bitumen 60/70 is in road construction, water proofing & building construction industries and also in cutback bitumen production. This kind of bitumen is suitable to be used in mild regions.