Oxidized Bitumen

Oxidized Bitumen 75/25 and Its Industrial Applications

Oxidized bitumen, also known as blown bitumen or oxidized asphalt, is a specialized form of bitumen that undergoes a controlled oxidation process. Among the various grades of oxidized bitumen, Oxidized Bitumen 75/25 stands out due to its specific properties and wide range of industrial applications. This blog will delve into the details of Oxidized Bitumen 75/25, its production process, properties, and its diverse applications across different industries. Peak Universal Business is highlighted as a trusted supplier, ensuring high-quality oxidized bitumen for various industrial needs.

Understanding Oxidized Bitumen 75/25

What is Oxidized Bitumen 75/25?

Oxidized Bitumen 75/25, often referred to as Oxidized Asphalt 75/25, is a type of bitumen that has been subjected to an oxidation process, resulting in a product with enhanced properties. The numbers 75/25 denote the softening point and penetration value respectively, which indicate the material’s hardness and flexibility.

Chemical Composition

Oxidized bitumen is composed of hydrocarbons derived from crude oil, similar to other types of bitumen. However, the oxidation process alters its chemical structure, increasing the content of asphaltenes and resins while reducing the proportion of oils. This modification results in a bitumen with higher viscosity and improved thermal and chemical stability.

Physical Properties

  • Softening Point: Approximately 75°C
  • Penetration Value: Approximately 25 dmm (decimillimeters)
  • Ductility: Reduced compared to non-oxidized bitumen, providing increased hardness.
  • Thermal Stability: Enhanced stability at higher temperatures.
  • Weather Resistance: Improved resistance to environmental factors such as UV radiation and oxidation.

These properties make Oxidized Bitumen 75/25 suitable for applications where durability, stability, and resistance to environmental conditions are crucial.

Production of Oxidized Bitumen 75/25

Oxidation Process

The production of Oxidized Bitumen 75/25 involves a controlled oxidation process, which typically includes the following steps:

  1. Feedstock Selection: Suitable bitumen feedstock is selected based on its composition and properties.
  2. Heating: The bitumen feedstock is heated to a specific temperature to facilitate the oxidation process.
  3. Air Blowing: Air is blown through the heated bitumen, causing a chemical reaction between the bitumen and oxygen. This process increases the asphaltene content, resulting in a harder and more stable bitumen.
  4. Cooling: The oxidized bitumen is then cooled and solidified to achieve the desired properties.

Quality Control

Quality control is critical in the production of Oxidized Bitumen 75/25 to ensure consistency and performance. This involves testing the softening point, penetration value, ductility, and other physical properties to meet industry standards and specifications.

Peak Universal Business adheres to stringent quality control measures to provide high-quality Oxidized Bitumen 75/25, ensuring its reliability for various industrial applications.

Industrial Applications of Oxidized Bitumen 75/25

Oxidized Bitumen 75/25 is used across numerous industries due to its unique properties. Below are detailed descriptions of its applications in different sectors:

1. Roofing Industry

  • Waterproofing Membranes

Oxidized Bitumen 75/25 is extensively used in the production of waterproofing membranes. Its high softening point and low penetration value make it ideal for creating durable and effective waterproofing layers. These membranes are used in roofing systems to prevent water infiltration, ensuring the longevity and integrity of the structures.

  • Roofing Felts and Shingles

The roofing industry relies on oxidized bitumen for the manufacture of felts and shingles. These materials provide excellent weather resistance and durability, making them suitable for various climatic conditions. The bitumen’s adhesive properties also ensure a strong bond with the roofing substrate, enhancing the overall performance of the roofing system.

2. Construction Industry

  • Road Construction

In road construction, Oxidized Bitumen 75/25 is used as a binder for asphalt mixtures. Its high thermal stability and resistance to deformation under load make it ideal for creating durable road surfaces. The bitumen’s enhanced properties ensure that the roads can withstand heavy traffic and adverse weather conditions without significant deterioration.

  • Expansion Joints

Oxidized bitumen is also used in the construction of expansion joints in concrete structures. These joints accommodate thermal expansion and contraction, preventing cracks and structural damage. The bitumen’s flexibility and durability make it an excellent material for this application.

3. Electrical Industry

  • Electrical Insulation

Oxidized Bitumen 75/25 is used as an insulating material in the electrical industry. Its dielectric properties and resistance to moisture and environmental factors make it suitable for insulating cables, transformers, and other electrical components. This ensures the safe and efficient operation of electrical systems.

  • Capacitors

In the manufacture of capacitors, oxidized bitumen serves as an insulating and sealing material. It provides excellent thermal stability and moisture resistance, ensuring the reliability and longevity of the capacitors.

4. Industrial Coatings

  • Anti-Corrosion Coatings

Oxidized bitumen is used in the production of anti-corrosion coatings for metal structures. These coatings provide a protective barrier against moisture, chemicals, and environmental factors, preventing rust and corrosion. This is particularly important in industries such as oil and gas, where metal structures are exposed to harsh conditions.

  • Protective Coatings for Pipes

In the oil and gas industry, oxidized bitumen is applied as a protective coating for pipelines. The bitumen’s resistance to chemicals and environmental degradation ensures the longevity and integrity of the pipelines, preventing leaks and failures.

5. Adhesive Industry

  • Hot-Melt Adhesives

Oxidized Bitumen 75/25 is used in the formulation of hot-melt adhesives. These adhesives are used in various applications, including packaging, bookbinding, and automotive assembly. The bitumen’s adhesive properties and thermal stability ensure strong and durable bonds.

  • Sealants

The construction and automotive industries use oxidized bitumen in the production of sealants. These sealants provide excellent adhesion and flexibility, ensuring a secure and long-lasting seal in joints and seams.

6. Paint and Coatings Industry

  • Industrial Paints

Oxidized bitumen is used as a component in industrial paints and coatings. These paints provide a protective barrier against moisture, chemicals, and environmental factors, ensuring the longevity and appearance of the coated surfaces.

  • Marine Coatings

In the marine industry, oxidized bitumen is used in coatings for ships and offshore structures. These coatings provide excellent resistance to saltwater and harsh marine environments, preventing corrosion and degradation.

Benefits of Using Oxidized Bitumen 75/25

  • Durability

Oxidized Bitumen 75/25 offers exceptional durability, making it suitable for long-term applications. Its resistance to environmental factors, chemicals, and thermal degradation ensures that it performs reliably under various conditions.

  • Versatility

The versatile properties of Oxidized Bitumen 75/25 allow it to be used in a wide range of applications across different industries. Its ability to provide waterproofing, insulation, and protection makes it a valuable material for numerous industrial processes.

  • Cost-Effectiveness

Oxidized bitumen is a cost-effective material, providing excellent performance at a relatively low cost. Its long lifespan and minimal maintenance requirements further enhance its cost-effectiveness, making it an attractive choice for various applications.

  • Environmental Benefits

The use of oxidized bitumen can contribute to sustainable practices in the construction and manufacturing industries. Its durability and resistance to degradation reduce the need for frequent replacements, minimizing waste and resource consumption. Additionally, the bitumen can be recycled at the end of its life cycle, further reducing its environmental impact.

  • Enhanced Performance

The specific properties of Oxidized Bitumen 75/25, such as its high softening point and low penetration value, provide enhanced performance in demanding applications. Its ability to withstand extreme temperatures and environmental conditions ensures reliable and consistent performance.

Peak Universal Business: Your Trusted Supplier of Oxidized Bitumen 75/25

  • Commitment to Quality

Peak Universal Business is dedicated to providing high-quality Oxidized Bitumen 75/25 that meets industry standards and specifications. Their rigorous quality control processes ensure that customers receive a product that performs reliably in various applications.

  • Technical Expertise

With extensive experience in the bitumen industry, Peak Universal Business offers unparalleled technical expertise. They provide valuable insights and support to help customers select the right bitumen products for their specific needs.

  • Reliable Supply Chain

Peak Universal Business maintains a robust supply chain to ensure timely and reliable delivery of Oxidized Bitumen 75/25. Their efficient logistics network minimizes downtime and ensures that customers receive their products when needed.

  • Customized Solutions

Understanding that different projects have unique requirements, Peak Universal Business offers customized solutions tailored to meet specific needs. They work closely with customers to provide bitumen products that deliver optimal performance for their applications.

  • Sustainability Focus

Peak Universal Business is committed to sustainable practices in the production and distribution of bitumen. They strive to minimize their environmental impact through responsible sourcing, energy-efficient processes, and recycling initiatives.


Oxidized Bitumen 75/25 is a versatile and valuable material used in various industrial applications, from roofing and construction to electrical insulation and protective coatings. Its unique properties, including high thermal stability, weather resistance, and adhesive strength, make it an essential component in many industrial processes.

Choosing a trusted supplier like Peak Universal Business ensures that you receive high-quality Oxidized Bitumen 75/25 that meets the stringent demands of your projects. With their commitment to quality, technical expertise, and sustainability, Peak Universal Business is the ideal partner for all your bitumen needs.

As industries continue to seek durable, efficient, and sustainable materials, Oxidized Bitumen 75/25 remains a critical solution, offering exceptional performance and reliability in a wide range of applications.

You can Read More about this product Here: Oxidized Bitumen

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