Bitumen 85/25 (ASTM D36) – Specification, Applications & Latest Price

Bitumen 85/25 is an oxidized bitumen grade widely used in industrial, waterproofing, and construction applications where high thermal stability and long-term durability are required. With a softening point of approximately 85°C and penetration of 25 dmm, this grade offers excellent resistance to heat, aging, and chemical exposure.

Due to its stable physical structure and compliance with international standards, Bitumen 85/25 is commonly specified for roofing systems, insulation layers, industrial coatings, and protective applications worldwide.

Applications of Bitumen 85/25

Bitumen 85/25 is designed for applications that require durability, adhesion, and resistance to heat and chemicals. Common uses include:

  • Roofing membranes and waterproofing systems

  • Foundations, basements, and underground structures

  • Pipe coating and corrosion protection

  • Industrial tank linings

  • Expansion joints and crack fillers

  • Electrical insulation and battery sealing

  • Protective coatings for steel and concrete surfaces

Performance Advantages of Bitumen 85/25

Compared to softer or non-oxidized grades, Bitumen 85/25 offers several technical advantages:

  • High resistance to heat and deformation

  • Strong adhesion to metal, concrete, and masonry

  • Excellent aging stability under UV exposure

  • Resistance to water, salts, and chemical agents

  • Long service life in demanding industrial environments

Application Guidelines for Bitumen 85/25

To achieve optimal performance, follow these best practices:

  • Surface preparation: Ensure all surfaces are clean, dry, and free of dust, oil, or loose materials.

  • Heating: Heat the product gradually to improve flow; avoid overheating to preserve material properties.

  • Application methods: Suitable for brush, trowel, mop, or spray application depending on usage.

  • Thickness control: Apply evenly to ensure uniform protection.

  • Curing: Allow sufficient cooling and curing before exposure to load, moisture, or mechanical stress.

Manufacturing Process & Quality Control

Bitumen 85/25 is manufactured through a controlled air-blowing (oxidation) process at temperatures typically ranging from 230–270°C. This process modifies the molecular structure of base bitumen to achieve the required softening point and penetration.

Quality assurance includes:

  • Continuous monitoring during production

  • Laboratory testing for penetration, softening point, and stability

  • Batch traceability and documentation

  • Compliance with ASTM and EN standards

  • Optional third-party inspection (SGS, BV, Intertek)

Packaging & Export Options

Bitumen 85/25 is supplied in multiple packaging formats to suit different logistics and project requirements:

  • Steel drums (180–200 kg) – ideal for international shipping

  • Meltable bags (25–50 kg) – convenient for direct application

  • Jumbo bags (500–1000 kg) – economical for bulk projects

  • Custom packaging available upon request

Shipments are available from Turkey and the UAE with full export documentation, including COA, MSDS, and Certificate of Origin.

Bitumen 85/25 Price & Ordering Information

The price of Bitumen 85/25 depends on several factors such as:

  • Order quantity

  • Packaging type

  • Delivery terms (FOB, CFR, CIF)

  • Destination country

  • Market conditions

For the latest Bitumen 85/25 price, technical datasheets, or quotation requests, please contact our sales team for accurate and up-to-date information.

Frequently Asked Questions (FAQ)

What is Bitumen 85/25 used for?

It is mainly used for waterproofing, roofing, industrial coatings, pipe protection, insulation, and expansion joint applications.

Is Bitumen 85/25 an oxidized bitumen?

Yes. It is produced by air-blowing base bitumen to achieve higher softening point and improved durability.

Does Bitumen 85/25 meet international standards?

Yes, it complies with ASTM and EN specifications.

Can Bitumen 85/25 be exported worldwide?

Yes, it is supplied globally in drums, jumbo bags, or bulk packaging with full export documentation.

Is Bitumen 85/25 suitable for hot climates?

Yes. Its high softening point makes it ideal for use in high-temperature and industrial environments.

Table of Contents

Technical Specifications

PropertyTypical Value
Penetration @ 25°C (dmm)25
Softening Point (°C)85
Ductility @ 25°C (cm)>1.0
Loss on Heating (%)0.2 Max
Flash Point (°C)240 Min
Solubility in CS2 (%)99.0 Min
AppearanceBlack, solid

References and certificates

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