Oxidized Bitumen 105/25 – Industrial Bitumen for Specialized Applications

Oxidized Bitumen 10525

Oxidized Bitumen 105/25 is a premium air-blown bitumen grade designed for industrial applications where thermal stability, sealing performance, and structural strength are essential. Compared to conventional bitumen, Bitumen 105/25 offers a higher softening point and lower penetration, making it ideal for demanding environments that require resistance to heat, deformation, and environmental exposure.

This grade is widely used not only in waterproofing systems but also in advanced industrial formulations where durability and consistency play a critical role.

What Is Oxidized Bitumen 105/25?

Oxidized Bitumen 105/25 is produced through an air-blowing process that modifies the molecular structure of bitumen. This process enhances its hardness and increases its resistance to high temperatures.

The number 105 refers to the approximate softening point, while 25 indicates the penetration value. This balance makes Bitumen 105/25 suitable for applications that require both rigidity and controlled workability.

Key Properties of Bitumen 105/25

When selecting Oxidized Bitumen 105/25, industrial buyers focus on performance characteristics that directly impact their production and final product quality:

High Thermal Resistance in Oxidized Bitumen 105/25

This grade maintains its structure at elevated temperatures, making it ideal for hot climate applications and exposed surfaces.

Strong Adhesion and Sealing Performance

Bitumen 105/25 provides excellent bonding capabilities, which is essential in coating, insulation, and sealing applications.

Enhanced Structural Stability

Unlike softer grades, Oxidized Bitumen 105/25 retains its form under pressure and temperature variations.

Low Penetration for Industrial Use

The relatively low penetration value ensures a dense and durable material suitable for heavy-duty applications.

Industrial Applications of Oxidized Bitumen 105/25

While many suppliers only highlight waterproofing, the real value of Oxidized Bitumen 105/25 lies in its wider industrial usage.

Waterproofing Systems Using Bitumen 105/25

This grade is widely used in roofing membranes, insulation layers, and moisture barriers where long-term resistance is required.

Pipe Coating and Corrosion Protection

Oxidized Bitumen 105/25 is used in protective coatings for pipelines, helping prevent corrosion and extending service life in harsh environments.

Cable Filling and Electrical Insulation Compounds

A less known application of Bitumen 105/25 is in cable compounds, where it helps protect internal structures from moisture and contamination.

Cable Filling and Electrical Insulation Compounds-bitumen

Joint Filling and Industrial Sealing Solutions

Due to its dense structure, Oxidized Bitumen 105/25 is suitable for expansion joints and sealing systems in construction and industrial setups.

Industrial Adhesives and Lamination Base Material

This grade is also used as a base in adhesive formulations and laminated industrial products where heat resistance is required.

Mastic and Protective Compound Production

Manufacturers use Bitumen 105/25 as a base material in mastics and protective coatings, especially when a harder bitumen is needed.

Why Choose Oxidized Bitumen 105/25?

Industrial buyers prefer Oxidized Bitumen 105/25 because it offers a strong balance between hardness and usability. It is not too soft to lose structure, and not too brittle to process.

Advantages of Bitumen 105/25

  • High softening point for heat resistance
  • Excellent waterproofing capability
  • Strong adhesion in industrial formulations
  • Long-term durability and stability
  • Suitable for multiple industrial sectors

Packaging and Supply of Bitumen 105/25

Oxidized Bitumen 105/25 is typically supplied in different packaging options based on customer requirements and export conditions:

Standard Packing Options

  • Kraft bags (meltable)
  • Carton boxes
  • Jumbo bags

Packaging selection depends on the production process, transportation method, and destination market.

Oxidized Bitumen 105/25 vs Other Grades

Compared to softer grades, Bitumen 105/25 offers higher resistance to heat and deformation. Compared to harder grades, it still maintains workable flexibility, making it suitable for a wide range of industrial uses.

This makes Oxidized Bitumen 105/25 a versatile choice for manufacturers who need consistent performance across different conditions.

Conclusion – Where Bitumen 105/25 Creates Real Value

Although many buyers initially consider Oxidized Bitumen 105/25 for waterproofing, its true value lies in specialized industrial applications such as pipe coating, cable compounds, mastics, sealing systems, and insulation materials.

Understanding how Bitumen 105/25 performs within a production process allows buyers to select the right material not just based on price, but based on long-term performance and reliability.

FAQs About Oxidized Bitumen 105/25

What is the main use of Oxidized Bitumen 105/25?

It is mainly used in waterproofing, pipe coating, and industrial compounds.

Is Bitumen 105/25 suitable for hot climates?

Yes, due to its high softening point, it performs well in high-temperature environments.

Can Oxidized Bitumen 105/25 be used in cable applications?

Yes, it is used in cable filling compounds to provide protection against moisture.

What is the difference between Bitumen 105/25 and softer grades?

It has higher hardness, better heat resistance, and improved structural stability.

How is Oxidized Bitumen 105/25 packed?

It is available in kraft bags, cartons, and jumbo bags depending on customer needs.

Technical Specifications

PropertyTypical Specification
Product NameOxidized Bitumen 150/5
Softening Point (°C)145 – 155
Penetration at 25°C (0.1 mm)3 – 7
Specific Gravity @ 25°C1.02 – 1.06
Loss on Heating (wt %)Max 0.2
Flash Point (°C)Min 260
Solubility in CS2 (wt %)Min 99.5
Ductility at 25°C (cm)Min 1.0
Spot TestNegative

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