Oxidized Bitumen

Oxidized Bitumen, also known as Blown Bitumen, Air Blown Bitumen, Oxidized Asphalt, and Hard Bitumen, is a specially modified petroleum bitumen produced by controlled oxidation of penetration grade bitumen through the process of blowing hot air into the bitumen at elevated temperatures. During this manufacturing process, chemical reactions increase the molecular weight and improve the hardness, elasticity, durability, and resistance of bitumen against temperature changes, aging, and chemical influences. Oxidized Bitumen is widely used as a high-performance industrial material where conventional paving bitumen cannot provide the required mechanical and thermal properties. Due to its excellent adhesion, water resistance, flexibility, and long service life, Oxidized Bitumen is an important product for international markets and is supplied by manufacturers for wholesale export in different grades according to customer requirements and application needs.

Commercially available grades of Oxidized Bitumen are mainly classified according to penetration and softening point values. Common grades include Oxidized Bitumen 85/25, 90/15, 90/40, 95/25, 115/15, 150/5, and 160/20. The grade 85/25 is commonly used for roofing felts, waterproofing membranes, and industrial coatings where balanced hardness and flexibility are required. 90/15 and 90/40 grades are suitable for pipe coating, electrical insulation, flooring applications, and protective coatings due to their excellent resistance to deformation. 95/25 is widely used in roofing systems, construction sealants, and adhesive formulations. Harder grades such as 115/15, 150/5, and 160/20 are preferred for heavy-duty industrial applications, including hot melt adhesives, cable insulation, chemical-resistant coatings, and specialized construction materials. These grades are selected based on softening point, penetration value, viscosity, and the required performance characteristics of the final application.

Oxidized Bitumen provides several advantages including high softening point, excellent resistance to oxidation and weathering, strong bonding properties, superior waterproofing performance, and long-term durability. It maintains stability under high temperatures while preserving flexibility at lower temperatures, making it suitable for demanding industrial environments. Due to its consistent quality, chemical stability, and wide range of applications, Oxidized Bitumen is exported worldwide for use in construction, infrastructure, oil and gas industries, automotive applications, and manufacturing sectors. Reliable production processes, strict quality control, and availability in different packaging options make Oxidized Bitumen an attractive industrial product for global buyers seeking high-quality bituminous materials.

Specification	Typical Value
Product Name	Oxidized Bitumen
Other Names	Blown Bitumen, Air Blown Asphalt, Oxidized Asphalt
Manufacturing Process	Controlled Air Oxidation of Penetration Bitumen
Appearance	Black Solid Bituminous Material
Penetration Range	5 – 40 dmm (Depending on Grade)
Softening Point	85°C – 160°C (Depending on Grade)
Solubility	Soluble in Carbon Disulfide / Organic Solvents
Specific Gravity	Approximately 1.0 – 1.1
Application Type	Industrial, Construction, Waterproofing
Temperature Resistance	High Resistance to Heat and Aging
Adhesion Property	Excellent Bonding Strength
Available Grades	85/25, 90/15, 90/40, 95/25, 115/15, 150/5

IF YOU ARE WILLING TO BUY OXIDIZED BITUMEN FROM VERIFIED IRANIAN SUPPLIERS, PLEASE SCROLL DOWN AND SUBMIT YOUR REQUEST.

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FAQ Oxidized Bitumen

Oxidized Bitumen is a modified bitumen produced by blowing hot air through penetration grade bitumen to increase hardness, durability, and temperature resistance.

Oxidized Bitumen is also commercially known as Blown Bitumen, Air Blown Bitumen, Oxidized Asphalt, and Hard Bitumen.

Common grades include 85/25, 90/15, 90/40, 95/25, 115/15, 150/5, and other customized grades according to customer requirements.

Oxidized Bitumen is used in roofing membranes, waterproofing materials, pipe coatings, sealants, adhesives, electrical insulation, flooring, and industrial protective coatings.

Oxidized Bitumen offers higher softening point, improved aging resistance, better durability, stronger adhesion, and superior performance in demanding industrial applications.

You can find a suitable and reliable supplier in Iran for Oxidized Bitumen through Irancorps, which helps international buyers connect with qualified Iranian manufacturers and exporters.