Comprehensive Guide to Oxidized Bitumen 85/25

Applications, Specifications & Market Trends

What is Oxidized Bitumen 85/25?

Oxidized Bitumen 85/25, also known as Blown Bitumen, is a semi-solid grade of bitumen produced by blowing hot air into penetration-grade bitumen under controlled temperature.
The numbers 85/25 represent two critical parameters:

• Softening Point: 85°C, showing its ability to resist high temperatures.

• Penetration: 25 (0.1 mm), defining its hardness and durability.

This unique composition makes oxidized bitumen more stable, less temperature-sensitive, and ideal for industrial applications requiring strong adhesion and long-term performance. Compared to standard penetration bitumen, oxidized grades like 85/25 offer superior heat resistance and lower ductility, ensuring excellent waterproofing and insulation properties.

Manufacturing Process

The oxidation process begins with pure vacuum residue or penetration bitumen heated up to around 240–300°C.
Filtered air is then blown into the material inside a specially designed blowing column. During this process, the bitumen reacts with oxygen, forming new molecular structures that increase the softening point and reduce penetration.

At Faragam Petro Tech, this process is precisely controlled to maintain uniform quality across every batch. The resulting Oxidized Bitumen 85/25 complies with major international standards such as ASTM D36 (Softening Point), ASTM D5 (Penetration), and ASTM D2042 (Solubility in TCE).

Technical Specifications

Thanks to these specifications, the product delivers consistent performance, high purity, and excellent adhesion, making it suitable for demanding conditions.

Applications of Oxidized Bitumen 85/25

Oxidized Bitumen 85/25 has a wide range of industrial and construction applications, including:

• Waterproofing membranes & roofing felt: Provides long-lasting protection against water penetration.

• Pipe coating & corrosion protection: Ideal for metal and concrete surfaces exposed to moisture.

• Expansion joints and flooring compounds: Ensures flexibility and durability in harsh climates.

• Soundproofing materials: Acts as an acoustic dampener in industrial and building projects.

Because of its high softening point, this grade performs exceptionally well in hot climates, making it a popular choice for export to Asia, Africa, and the Middle East.

Market Trends and Export Insights

The global oxidized bitumen market has grown steadily over the past decade, driven by infrastructure development, waterproofing needs, and industrial demand.
Countries in Asia and the Middle East are leading importers, valuing consistent quality and reliable supply chains.

Iran, as one of the top bitumen producers, holds a strong position in the export market due to its access to raw materials and advanced production facilities.
Faragam Petro Tech, a trusted Iranian manufacturer and exporter, offers Oxidized Bitumen 85/25 in both Pure and Mix grades, ensuring maximum flexibility for different applications.

Packaging options include Kraft bags, Drums, Jumbo bags, and Cartons, all designed for safe international transport and long shelf life.

Conclusion

In summary, Oxidized Bitumen 85/25 is a versatile, heat-resistant, and high-performance material ideal for waterproofing, roofing, and industrial insulation.
With strict quality control, advanced manufacturing, and reliable export logistics, Faragam Petro Tech continues to deliver bitumen products that meet global standards and exceed client expectations.

Sustainability and Quality Assurance in Bitumen Production

In today’s global market, sustainability and product reliability are key factors in material selection. At Faragam Petro Tech, the production of Oxidized Bitumen 85/25 follows strict environmental and quality standards to minimize emissions and ensure consistent product performance. Every batch undergoes laboratory testing for penetration, softening point, and purity before shipment. This commitment to eco-friendly production and international compliance not only enhances customer trust but also supports long-term partnerships across global markets.

Comprehensive Guide to Oxidized Bitumen 85/25: Applications, Specifications & Market Trends. Discover Faragam Petro Tech’s high-quality bitumen solutions.