Bitumen 60/70 VS 40/50

Bitumen 60/70 VS 40/50 are two types of penetrating bitumen produced through the vacuum aeration process of the bottom. These two bitumens have similar characteristics, but they also have key differences.

Bitumen 60/70 VS 40/50 Permeability Degree

The most important difference between 60/70 bitumen and 40/50 bitumen is their permeability degree. The permeability degree of a bitumen indicates the degree to which it penetrates the underlying rock. 60/70 bitumen has a permeability degree between 60 and 70 mm in 100 seconds, while 40/50 bitumen has a permeability degree between 40 and 50 mm in 100 seconds.

Adhesion

Bitumen 60/70 VS 40/50 has a higher adhesion. This is because 60/70 bitumen has a higher concentration.

Durability

60/70 bitumen has a higher durability than 40/50 bitumen. This is because 60/70 bitumen has more cross-links between the molecules.

Applications

60/70 bitumen is typically used for applications that require high adhesion and durability. For example, 60/70 bitumen is used to produce specialty asphalts, industrial insulation, and waterproof coatings. 40/50 bitumen is typically used for applications that require lower adhesion and durability. For example, 40/50 bitumen is used to produce regular asphalts, building insulation, and moisture-proof coatings.