75/25

Oxidized Bitumen 70/25, often referred to as Blown Bitumen, is a high-grade, semi-solid bitumen manufactured through the process of air-blowing. During this process, hot air is passed through penetration-grade bitumen, increasing its softening point and reducing its penetration rate. This specific grade, 70/25, is widely valued for its balance of rigidity and flexibility, making it ideal for numerous industrial applications.

Properties of Oxidized Bitumen 70/25

1. Softening Point (Approx. 70°C):
   This high softening point ensures the material remains stable and does not deform under elevated temperatures, making it suitable for hot climates or heat-intensive applications.

2. Penetration Value (Approx. 25 dmm):
   The low penetration rate signifies increased hardness and rigidity, which contributes to the product’s strength and durability.

3. Weather and Aging Resistance:
   Oxidized Bitumen 70/25 exhibits excellent resistance to weathering and aging, maintaining its performance over extended periods, even in harsh environmental conditions.

4. Waterproofing Capability:
   Its impermeable nature makes it a reliable material for preventing water infiltration, a critical requirement in roofing and insulation.

5. Adhesion Strength:
   The bitumen adheres strongly to various surfaces, including metals, concrete, and wood, ensuring its versatility across different industrial uses.

6. Thermal Stability:
   Oxidized Bitumen 70/25 performs well in a broad temperature range, resisting melting in heat and maintaining integrity in moderate cold.

Applications of Oxidized Bitumen 70/25

1. Roofing and Waterproofing:
   Commonly used in roofing membranes and waterproofing layers to protect buildings and structures from water damage.

2. Pipe Coating:
   Acts as an anti-corrosive coating for metal pipes, safeguarding them from moisture and chemical exposure.

3. Industrial Flooring:
   Provides a durable and protective layer for industrial floors, enhancing resistance to wear and moisture.

4. Electrical Insulation:
   Due to its low electrical conductivity, it is used in the insulation of electrical equipment and wires.

5. Adhesives and Sealants:
   Plays a role in the production of industrial adhesives and sealants, where durability and adhesion strength are required.

Advantages of Oxidized Bitumen 70/25

1. Durability:
   Its rigidity and resistance to deformation ensure longevity, reducing maintenance costs over time.

2. Heat and Weather Resistance:
   Performs reliably in high-temperature and challenging weather conditions.

3. Versatility:
   The ability to adhere to different materials makes it applicable across various industries.

4. Waterproofing Efficiency:
   Provides superior resistance to water penetration, making it indispensable in moisture-sensitive projects.

5. Chemical Resistance:
   Resistant to chemical attacks from acids, alkalis, and salts, making it ideal for industrial environments.

Limitations

1. Brittleness in Extreme Cold:
   Like many oxidized bitumen grades, it can become brittle in very low temperatures.

2. Application Challenges:
   Requires heating before application, necessitating specialized equipment and handling procedures.

3. Limited Flexibility:
   Its rigid nature may not suit applications requiring significant elasticity.

Why Choose Oxidized Bitumen 70/25?

For projects that demand durability, thermal stability, and excellent waterproofing, Oxidized Bitumen 70/25 is a dependable choice. Its unique combination of properties makes it a go-to material for industries ranging from construction to insulation. However, understanding the specific project needs and environment is essential to maximize its benefits.

By integrating Oxidized Bitumen 70/25 into your projects, you ensure a high-quality solution tailored to meet the demands of modern infrastructure and industrial challenges.