Oxidized Bitumen 95/25 – Premium Blown Asphalt
RAHA Oil is a leading supplier and exporter of Oxidized Bitumen 95/25, based in Dubai, United Arab Emirates. Our high-quality blown asphalt grade offers excellent thermal resistance, chemical durability, and adhesion — ideal for a wide range of industrial, construction, and protective applications.
Oxidized Bitumen 95/25 is a high-quality blown asphalt produced by air-blowing bitumen 60/70 at high temperatures without any catalyst. This process raises its softening point, improves stability during melting, and gives the material strong rubber-like properties suitable for industrial applications. The grade “95/25” refers to the midpoint of its softening point and penetration values. It is a solid or semi-solid material that becomes liquid when heated, manufactured through controlled continuous or staggered air-blowing processes to ensure consistent quality. Softening point is measured using ASTM D36 (Ring & Ball method), and penetration is determined according to ASTM D5/IP49.
Chemistry of the Blowing Process for Bitumen 95/25
The bitumen blowing process can be described as a conversion process in which oxidation, dehydrogenation, and polymerization take place. This is typically driven by the oxygen present in air. By analyzing the materials entering and leaving the reaction vessel, it is possible to draw up an oxygen balance. All the oxygen absorbed by Oxidized Bitumen 95/25 during this process can be accounted for by the formation of hydroxyl, carbonyl, acid, and ester groups — no ether oxygen has been detected.
Oxidized Bitumen 95/25 vs. Other Oxidized Grades
Oxidized Bitumen 95/25 sits in the softer-to-mid range of the Oxidized Bitumen family, with a lower softening point (90–100°C) compared to harder grades like 110/30 or 115/15. This gives it slightly more workability and flexibility while still retaining the enhanced thermal stability and adhesion that define oxidized grades. It is a practical choice where moderate hardness is sufficient and easier handling during application is preferred.
Common Industries Using Oxidized Bitumen 95/25
This grade is widely used across the roofing and waterproofing industry, pipe coating and corrosion protection, and automotive undercoating manufacturing. Its balance of hardness and workability also makes it a popular choice for adhesive and mastic production, as well as sound-dampening felt manufacturing, where moderate flexibility supports easier processing.
Temperature Requirements for Bitumen 95/25
Since most bitumen grades are solid at ambient temperature, they must be heated to move through the distribution system as a liquid — typically in the range of 140°C to over 200°C, depending on the grade. For highly oxidized grades, higher temperatures up to 230°C may be applied under an inert atmosphere.
When handled properly, the material can be reheated or maintained at elevated temperatures for a considerable time without adversely affecting its properties. However, overheating or exposing Oxidized Bitumen 95/25 to conditions that promote oxidation can degrade its properties and affect the long-term performance of mixtures containing it.
Applications of Oxidized Bitumen 95/25
Oxidized Bitumen 95/25 is a hard, rubbery-grade bitumen produced by blowing hot air through Bitumen 60/70. Because of its high softening point and strong adhesion, it is widely used across construction, industrial, and automotive applications:
Construction and Waterproofing: Roofing, waterproofing membranes, flooring, and expansion joint sealing, as well as repair of joints, cracks, and parquet floor fixation.
Industrial and Protective Coatings: Pipe coating and corrosion protection, industrial mastics, insulation membranes, adhesives, paints, varnishes, and asphalt-based coatings for metals and concrete structures.
Specialty Applications: Piling anti-slip compounds, sound-dampening felts, electric cable protection, synthetic turf base, and public works lining.
Automotive Industry: Vehicle undercoating, providing excellent waterproofing, dust protection, and noise reduction.
This grade is also used in textile processing, pavement repair, thermal insulation adhesives, and bonding of wet briquettes.
Key Advantages of Oxidized Bitumen 95/25
Oxidized Bitumen 95/25 offers durability, flexibility, water resistance, and chemical stability, conforming to ASTM standards for softening point and penetration. Compared to paving-grade bitumen, it exhibits reduced temperature susceptibility, a more solid nature at ambient temperatures, and a high penetration index.
Raha Oil backs every shipment with quality-assured manufacturing, competitive pricing, and prompt delivery. Packaging is weatherproof and available in multiple formats — meltable bags, Kraft bags, carton boxes, blocks, kegs, and drums — with high monthly production capacity, high purity (no gilsonite or other impurities), and full technical support.
Storage and Handling Recommendations
Oxidized Bitumen 95/25 should be stored in a cool, dry area away from direct sunlight and open flames. While more workable than harder oxidized grades, it still remains solid at ambient temperature and should be broken into manageable pieces before heating to ensure even, controlled temperature distribution and avoid localized overheating.
Frequently Asked Questions - FAQ
It is used mainly in roofing, waterproofing, pipe coating, industrial mastics, electrical insulation, and automotive undercoating.
Oxidized Bitumen 95/25 has a softening point of 90–100°C and a penetration value of 20–30 (0.1 mm), as confirmed by ASTM D36 and ASTM D5 testing.
Yes, we offer SGS or any third-party inspection based on customer requirements.
It should be broken into small pieces and heated gradually to approximately 220°C, avoiding overheating which can degrade its properties.
Raha Oil supplies Oxidized Bitumen 95/25 in 20–25 kg meltable/Kraft bags, 25 kg carton boxes, 150–200 kg steel drums, and palletized or bulk container loading.
Oxidized Bitumen 95/25 — Technical Data Sheet
ASTM Standard| Property | Test Method | Unit | Specification | |
|---|---|---|---|---|
| Specific Gravity @ 25/25°C | ASTM D70 | kg/cm³ | 1.05 approx | |
| Penetration @ 25°C | ASTM D5 | 0.1 mm | 20–30 | |
| Softening Point | ASTM D36 | °C | 90–100 | |
| Ductility @ 25°C | ASTM D113 | cm | 1.5 min | |
| Loss on Heating (wt) | ASTM D6 | % | 0.2 max | |
| Flash Point | ASTM D92 | °C | 250 min | |
| Solubility in CS2 (wt) | ASTM D4 | % | 99.5 max | |
Source: Raha Group official Technical Data Sheet, Oxidized Bitumen 95/25 (ASTM standard). Values represent standard product specification; actual batch results are confirmed via Certificate of Analysis (COA) issued with each shipment.
Why Choose Raha Oil for Oxidized Bitumen 95/25
Raha Oil manufactures Oxidized Bitumen 95/25 from Dubai, UAE, with production and testing following ASTM standards. Quality is verified through internal testing before every shipment, with full documentation including TDS, COA, and MSDS provided on request.
With flexible packing from 20 kg Kraft bags to 200 kg steel drums, including palletized options and an established export track record across the GCC, Africa, a
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