Oxidized Bitumen, also known as Blown Asphalt, is available in a range of grades tailored to specific industrial uses. These grades differ in softening point, penetration value, and viscosity, making each suitable for unique environments such as waterproofing, insulation, road construction, and protective coatings.
This post presents a complete overview of Oxidized Bitumen grades, their technical properties, and applications, ensuring that engineers, procurement teams, and infrastructure planners can select the ideal grade for each use case.
Each grade is formulated to match specific thermal resistance, mechanical durability, and chemical stability needs:
Grades like 85/40, 90/40, and 105/35 are ideal for rigid expansion joints in bridges, highways, and industrial flooring where flexibility is minimal and stability under pressure is critical.
Grades like 90/15, 95/25, and 110/30 offer outstanding corrosion resistance and waterproofing when applied to steel pipelines, storage tanks, and marine systems.
With low ductility and high flash points, grades such as 90/10 and 105/15 are used in basins, containment areas, and reactors in chemical processing plants.
Grades like 75/25, 85/30, and 115/15 serve in multilayer roofing systems to act as durable waterproof membranes resistant to UV and heat.
Used in cold-applied and hot-applied adhesive systems, grades like 75/30, 85/30, and 90/40 deliver long-lasting performance in glues, mastics, and filler products.
Click on each Oxidized bitumen grade and read more about that.
| Grade | Grade | Grade | Grade |
|---|---|---|---|
| Oxidized Bitumen 75/25 | Oxidized Bitumen 75/30 | Oxidized Bitumen 75/35 | Oxidized Bitumen 85/25 |
| Oxidized Bitumen 85/30 | Oxidized Bitumen 85/40 | Oxidized Bitumen 90/10 | Oxidized Bitumen 90/15 |
| Oxidized Bitumen 90/40 | Oxidized Bitumen 95/25 | Oxidized Bitumen 95/35 | Oxidized Bitumen 100/15 |
| Oxidized Bitumen 105/15 | Oxidized Bitumen 105/35 | Oxidized Bitumen 110/30 | Oxidized Bitumen 115/15 |
| Oxidized Bitumen 115/35 | Oxidized Bitumen 120/25 | Oxidized Bitumen 120/35 | Oxidized Bitumen 150/05 |
PEAK UNIVERSAL BUSINESS LTD. as Your trusted Supplier & Partner in high-performance bitumen solutions.
What is the main difference between oxidized and penetration bitumen?
Penetration bitumen is softer and temperature-sensitive, while blown asphalt has been air-blown to enhance hardness, aging resistance, and thermal stability.
How is oxidized bitumen applied in waterproofing?
It is melted and applied as a liquid sealant in layers. Upon cooling, it hardens into a waterproof, chemically-resistant layer for foundations, tunnels, and rooftops.
Which grade is best for expansion joints?
Grades such as 90/40, 105/35, and 110/30 are best due to their hardness, low ductility, and resistance to temperature fluctuations.
Is oxidized bitumen environmentally safe?
Yes, when used properly. It is inert, non-volatile, and has minimal leaching, making it suitable for sealed applications in construction and industry.
Can oxidized bitumen be blended with solvents or polymers?
Yes, with ≥99% solubility in TCE, it is compatible with a wide range of solvents, and can also be modified with SBS/APP polymers for enhanced flexibility.
Oxidized Bitumen offers unmatched performance for industrial-scale waterproofing, insulation, sealing, and protective coatings. With a variety of grades tailored to specific temperature, pressure, and chemical conditions, it remains a top choice for engineers and contractors worldwide.
Whether you’re dealing with expansion joints, roof membranes, or chemical basins, choosing the right bitumen grade ensures long-term durability, safety, and compliance.
PEAK UNIVERSAL BUSINESS LTD. (PUBLtd.) supplies premium-quality Oxidized Bitumen (Blown Asphalt) manufactured to international quality standards for waterproofing, roofing, industrial insulation, expansion joints, pipeline coating, protective coatings, and heavy-duty construction applications.
Our technical sales team is ready to help you choose the most suitable Oxidized Bitumen grade based on your project specifications and application requirements.
PEAK UNIVERSAL BUSINESS LTD. – Your Trusted Supplier & Partner in High-Performance Bitumen Solutions.
