Oxidized Bitumen 90/40 – Technical Specifications & Industrial Uses
Explore Oxidized Bitumen 90/40: specification, data sheet, applications, and performance in construction, pipeline, roofing, and chemical industries.
🛢️ Oxidized Bitumen 90/40: Specifications & Industrial Performance
Oxidized Bitumen 90/40, also referred to as Blown Asphalt 90/40, Oxidized Asphalt 90/40 or Bitumen 90/40 is one of the hardest and most heat-resistant grades of oxidized bitumen. Its high softening point and very low penetration make it suitable for rigid, non-flexible applications requiring extreme durability, stability, and chemical resistance.
This post provides a comprehensive overview of Bitumen 90/40, including its technical data sheet, physical properties, and high-performance industrial applications.
🔍 What is Oxidized Bitumen 90/40?
Oxidized Bitumen 90/40 is a solid grade of bitumen produced by blowing air through hot penetration-grade bitumen. The process increases the molecular weight, resulting in a product with a high viscosity, low temperature susceptibility, and superior aging resistance.
It is designed for static applications that are exposed to high temperatures, aggressive chemicals, or mechanical loads. This bitumen grade forms a strong, waterproof barrier and retains its shape even in extreme climates.
🏭 Industrial Applications of Oxidized Bitumen 90/40
🧱 1. Structural Expansion Joints
Bitumen 90/40 is widely used in expansion joint fillers for bridges, concrete highways, and heavy load-bearing infrastructure. Its thermal durability and dimensional stability prevent joint deformation, even under wide temperature shifts.
🛢️ 2. Protective Coating for Steel Pipelines
Its chemical inertness and waterproofing properties make it an excellent material for pipe coatings, especially for oil, gas, and water transmission systems. It shields steel from corrosion in both underground and marine environments.
🧪 3. Chemical-Resistant Linings
Due to its resistance to acids, alkalis, and industrial solvents, Oxidized Bitumen 90/40 is used in tank linings, containment basins, and chemical reactors, acting as a durable protective membrane.
🏠 4. Roof Insulation and Damp-Proofing
In roofing systems, Blown Asphalt 90/40 acts as a non-melting base layer that provides heat insulation, waterproofing, and dimensional support to upper bitumen or membrane layers.
⚙️ 5. Asphalt-Based Adhesives & Mastics
In the production of rigid adhesives, industrial mastics, and cold-applied sealing compounds, Blown Asphalt 90/40 a base component due to its long-term bonding power and resistance to flow.
🧰 6. Concrete Coatings and Barriers
When applied to foundation walls, tunnels, and reservoirs, it creates a strong water-resistant and chemical-proof shield that protects concrete from damage, erosion, and leakage.
✅ Key Advantages of Oxidized Bitumen 90/40
✅ Extreme Hardness & Rigidity
✅ High Heat & UV Resistance
✅ Excellent Chemical Inertness
✅ Ideal for Static Structural Applications
✅ Long-Term Weatherproofing
❓ FAQs About Oxidized Bitumen 90/40
❓ What is the difference between 90/15 and 90/40 bitumen?
While both have a similar softening point (~90°C), the 90/40 grade has higher penetration, meaning it’s slightly more workable but still rigid. It offers improved processing where some flexibility in application is needed.
❓ Is Oxidized Bitumen 90/40 suitable for flexible sealants?
No. With a ductility of <1 cm, Bitumen 90/40 is only suitable for static sealing and rigid layers, not for flexible expansion systems.
❓ How is 90/40 packaged for shipping?
Oxidized Asphalt 90/40 is available in:
25 kg meltable bags
180 kg new steel drums
1 metric ton blocks
Custom packaging on bulk order
❓ What industries benefit most from Blown Asphalt 90/40?
It is widely used in:
Infrastructure construction
Oil & gas pipelines
Chemical processing
Heavy-duty waterproofing
❓ Is Blown Asphalt 90/40 compatible with solvent-based formulations?
Yes, with a solubility rate of ≥99% in TCE, it is compatible with solvent-based adhesives and protective coatings.
🔍 Conclusion
Oxidized Bitumen 90/40 delivers a powerful combination of heat stability, structural rigidity, and chemical resistance, making it a premium choice for heavy-duty industrial uses.
From pipeline coatings to expansion joints and insulation layers, it offers superior performance where traditional materials fail under high temperatures or exposure to aggressive chemicals.
Its durable composition and long service life make it a cost-effective solution for infrastructure and manufacturing industries looking for uncompromising quality. If your project demands zero deformation, high adhesion, and maximum protection, Oxidized Asphalt 90/40 is the professional-grade solution.
📣 Call to PEAK UNIVERSAL BUSINESS LTD: Request Oxidized Asphalt 90/40 Today
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🛡️ High-Performance Industrial Grade Material
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✅ Contact our experts today to get the highest-quality Oxidized Asphalt 90/40—manufactured, tested, and delivered to meet your exact specifications.
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