Bitumen 150/5

Oxidized Bitumen Grade 150/5 is a high-performance, air-blown bitumen with a high softening point and low penetration value, delivering superior hardness, thermal stability, and resistance to flow. It is widely used in industrial, insulation, and waterproofing applications where durability and long service life are critical.

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    What is Bitumen 150/5?

    Bitumen 150/5 represents the apex of the standard oxidized bitumen grade range: a product with an extraordinary softening point of 145–155°C and an ultra-low penetration of just 5–10 dmm.

    At this extreme specification, the material is no longer a pliable bituminous product in any conventional sense — it is essentially a hard, glassy bituminous compound that requires high-temperature processing equipment and delivers exceptional performance in the most demanding industrial environments imaginable.  Applications for Bitumen 150/5 are highly specialised: high-voltage electrical cable insulation and filling compounds, chemical-resistant linings for vessels handling aggressive process media, extreme-temperature industrial protective coatings, and specialist industrial manufacturing processes where a very-hard bituminous matrix is required.

    The grade is produced in relatively small volumes compared to standard construction grades, with strict quality controls to ensure the demanding softening point and penetration specifications are consistently achieved. 

    Our UAE supply facility maintains dedicated production capability for ultra-hard grades, supported by precise quality testing and a technical team experienced in the specific requirements of electrical, chemical, and extreme industrial applications.

    Applications of Bitumen 105/5

    HV/EHV Cable Filling Compound

    High-voltage (HV) and extra-high-voltage (EHV) electrical cable filling and armour compound

    Chemical Vessel Lining

    Chemical-resistant lining for process vessels, reactors, and tanks handling aggressive acids and alkalis

    Extreme Chemical Coating

    Protective coating for industrial structures in extreme chemical environments (chlor-alkali, sulphuric acid, phosphoric acid plants)

    Switchgear Sealing Compound

    Hard bituminous compound for electrical switchgear base sealing and void filling

    Advantages of Bitumen 150/5

    Bitumen 150/5 serves a wide spectrum of construction, industrial, and infrastructure

    High Heat Stability

    Extraordinary softening point of 145–155°C — the highest available in standard oxidized bitumen grades, suitable for extreme industrial thermal environments

    Ultra-Rigid Structure

    Ultra-low penetration of 5–10 dmm — essentially a solid, glass-hard material at ambient temperature

    High Electrical Insulation

    Exceptional electrical insulation properties: very high surface resistivity, low dielectric constant, and low loss factor

    Superior Chemical Resistance

    Outstanding chemical resistance to concentrated acids, alkalis, solvents, and aggressive process media

    Low Temperature Sensitivity

    Negligible temperature susceptibility below 120°C — properties virtually unchanged across wide temperature range

    Bio & Bacterial Resistance

    Excellent resistance to bacterial and biological degradation in chemical waste and process environments

    Black Rock Oxidized Bitumen 150/5

    Essential Details

    Description

    • Type
    • Oxidized Bitumen
    • Feed Stock
    • Crude Oil
    • HS Code
    • 27132000
    • Spot Test
    • Negative
    • Inspection
    • Excluded
    • Delivery Term
    • FOB-CFR-CIF
    • Production and Loading Period
    • Maximum 3 Weeks
    • Payment Term
    • TT Method FOB Delivery: 30% advance and balance against customs documents
    • Marking
    • Marking can be customized based on customer request
    • Supply Capacity
    • 50,000 MT/Month
    • Packing
    • -Carton -Poly Amide -Polyester -Economical 1350 KG carton

    Bitumen 150/5 Specification

    Oxidized Bitumen Grade 150/5 Specifications

    Essential Details

    Test Method

    Unit

    Min.

    Max.

    • Specific Gravity at 25 °C
    • ASTM D70
    • –
    • 1.01
    • 1.06
    • Penetration at 25 °C, 100g, 5s
    • ASTM D5
    • 0.1mm
    • 10
    • 20
    • Softening Point
    • ASTM D36
    • °C
    • 100
    • 110
    • Ductility at 25 °C
    • ASTM D113
    • cm
    • 100
    • –
    • Loss on Heating
    • ASTM D6
    • wt.%
    • –
    • 0.2
    • Drop in Penetration after Heating
    • ASTM D5
    • %
    • –
    • 20
    • Flash Point
    • ASTM D5
    • °C
    • 250
    • –
    • Solubility in Trichloroethylene
    • ASTM D2042
    • wt.%
    • 99.5
    • –
    • Spot Test
    • ASHTO T102
    • Negative

    Bitumen 150/5 MSDS

    pdf

    Bitumen 150/5 Safety Data Sheet

    Download
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    Our Packaging

    We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).

    Terms of Payment

    Payment Terms for Smooth Transactions

    TT Method

    The buyer pays 30% advance, with the balance against B/L draft (CFR) or customs docs (FOB).

    LC at Sight

    100% irrevocable, non-transferable, confirmed LC at sight, subject to bank approval by Black Rock Bitumen.

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      Our faqs

      Frequently Asked Questions.

      Oxidized Bitumen Grade 150/5 is a high softening-point bitumen offering excellent hardness, thermal stability, and long-term resistance to deformation, ideal for industrial and waterproofing applications.

      Oxidized Bitumen 150/5 is an air-blown bitumen with high softening point and low penetration, offering excellent heat resistance and durability.

      What are the common applications of Grade 150/5 bitumen?

      It is widely used in industrial roofing, waterproofing membranes, pipe coating, electrical insulation, and expansion joints.

      Grade 150/5 features a higher softening point and harder consistency, making it ideal for high-temperature and heavy-duty applications.

      Yes, its high thermal stability ensures strong performance and shape retention in extreme heat conditions.

      Yes, Black Rock Bitumen supplies Grade 150/5 compliant with major international specifications and suitable for global export.

      Certain industrial environments — HV cable systems, chemical process vessels, high-temperature structures — require a bituminous material that remains hard and functional at sustained temperatures of 110–130°C. No lower-softening-point grade can reliably deliver this performance.

      Yes. Bitumen 150/5 is a standard specification for filling compound in high-voltage and extra-high-voltage underground cable construction, where the compound must remain solid and electrically insulating even at cable operating temperatures.

      220–240°C for melting and application. Specialised heating equipment with temperature control is required. Refer to the MSDS for safe handling procedures at these temperatures.

      Yes. Bitumen 150/5 exhibits excellent resistance to concentrated sulphuric acid, hydrochloric acid, and sodium hydroxide — making it suitable for lining duties in chemical processing plants.

      Full COA (with all specification parameters), TDS, MSDS/SDS with high-temperature handling procedures, REACH compliance declaration, electrical property test data (on request), and standard export documentation.