Oxidized Bitumen
What is Oxidized Bitumen?
Oxidized bitumen, also known as blown bitumen, is created by blowing air through penetration grades.
This technical process makes the bitumen harder and gives it more rubbery properties compared to its original form. Because it is highly resistant to heat, this hard bitumen is perfect for preventing bleeding in high-temperature environments.
Industrial Applications of Oxidized Bitumen
At Royal Bitumen, we supply this versatile material for many industrial uses.
It is widely used as an anti-slip layer compound in the piling industry, for manufacturing roofing and sound-dampening felts, and as an undercarriage sealant in the automotive industry.
It is also excellent for electric cable joint protection, joint filling, and sealing saw cuts where movement is minimum. Furthermore, it is a key ingredient in making bituminous marine mastic for oil and gas pipeline joints.
Popular Oxidized Bitumen Grades & Usage
The most popular choices are grades 95/25, 85/25, 90/40, and 115/15. However, Royal Bitumen can easily produce other custom grades based on your specific requests.
When using this blown grade bitumen (in molded cake form), you should break it into small pieces and heat it slowly until it reaches its application temperature of 220°C to 230°C.
Key Advantages of Oxidized Bitumen
The biggest advantages of our product are that it is completely water-resistant, highly flexible, chemically stable, and very durable. These strong technical benefits make the oxidized bitumen from Royal Bitumen a highly demanded compound across various industries.
How to produce Oxidized Bitumen? Two Methods of Production:
To manufacture high-quality blown bitumen, the factory follows five basic steps. First, the bitumen is heated up to 230°C – 270°C. Second, the liquid material goes into the blowing towers.
Third, air is blown through the mixture to make it harder. Fourth, water is used to cool the hot liquid. Last, the final product is packed safely.
Factories usually make this product in two ways:
- Continuous blowing method
- Discontinuous blowing method
Both methods can use catalysis (adding chemicals to make the process faster) or anti-catalysis.
Most factories choose the discontinuous method because it is simple to change product grades, easy to operate, uses simple technology, and costs less money to build.
Various application using oxidised bitumen
Oxidized bitumen has many everyday and industrial uses:
- It acts as a strong glue for roofing sheet membranes.
- It works as a hot waterproofing layer to stop water leaks.
- Factories use it to manufacture carpet tiles.
- It is a raw material for liquid coatings, bituminous paints, and mastics.
- It protects pipes from rust and corrosion.
- The piling industry uses it as an anti-slip compound.
- The automotive industry uses it for undercarriage sealants and sound-dampening felts.
- It protects electric cable joints and fills open cracks as a sealant.
