Bitumen 75/25 — Premium Air-Blown Oxidized Bitumen Supplier

Bitumen 75/25 is a high-quality air-blown (oxidized) bitumen manufactured by blowing hot air through straight-run bitumen under controlled temperature conditions. This process gives Bitumen 75/25 a significantly higher softening point (75°C) and lower penetration (25 dmm) than standard feedstock, making it ideal for roofing, waterproofing, and industrial insulation applications. As a trusted Bitumen 75/25 manufacturer and exporter, we deliver consistent quality, reliable supply, and full technical documentation with every shipment.

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What is Bitumen 75/25?

Oxidized Bitumen 75/25 is an air-blown bitumen grade with a softening point near 75°C and a penetration value around 25 (0.1mm). It is produced by blowing hot air through straight-run bitumen, which hardens the material and reduces temperature sensitivity for demanding industrial and construction applications worldwide.

Oxidized Bitumen 75/25 is widely used in roofing felts, waterproofing membranes, pipe coating, and bituminous adhesives for insulation boards. Its rigid structure and heat resistance make it ideal for damp-proofing, industrial flooring, and protective coatings on concrete or masonry foundations across global construction and infrastructure projects.

Black Rock Bitumen supplies Oxidized Bitumen 75/25 tested to ASTM and EN 12591 standards, ensuring consistent softening point, penetration, and purity. Sourced from certified refineries and shipped through our Dubai logistics hub, our Oxidized Bitumen 75/25 meets quality requirements for reliable export-grade construction and roofing materials.

Applications of Bitumen 75/25

• Roofing felts, bituminous felt underlay, and saturant base coat for roof decks
Bituminous adhesives for mineral wool and polystyrene insulation boards
Noise-damping underbody coatings for automotive and rail applications
Protective coatings for buried concrete and masonry foundations

Advantages of Bitumen 200/300

EN 12591 (European Standard) classifies penetration grade bitumen by its penetration value and softening point range. Black Rock Bitumen supplies all major EN grades, tested and certified for export from our Dubai logistics hub.

Elevated softening point (75–85°C) prevents flow or deformation in warm roofing environments.
Low penetration value (20–30 dmm) provides a firm, hard matrix that resists indentation and creep
Outstanding adhesion to fibreglass, polyester, jute, and mineral-coated substrates used in roofing felts
High resistance to UV oxidation and weathering aging, extending service life of roofing systems.
Compatible with SBS/APP polymers for upgrade to polymer-modified bituminous membranes.
Good processability at 180–200°C without significant fume emission above safety thresholds.

Black Rock Oxidized Bitumen 75/25

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 75/25 Specification

Oxidized Bitumen Grade 75/25 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
  • 35
  • 50
  • Softening Point
  • ASTM D36
  • °C
  • 52
  • 60
  • 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.%
  • 80% min
  • –
  • Spot Test
  • ASHTO T102
  • Negative

Bitumen 75/25 MSDS

pdf

Bitumen 75/25 Safety Data Sheet

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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 75/25 offers high softening point, enhanced durability, and reliable performance for industrial waterproofing applications.

    Bitumen 75/25 is an air-blown (oxidized) bitumen with a softening point of 75°C and penetration of 25 dmm, offering good heat resistance with moderate flexibility.

    It is commonly used in roofing membranes, waterproofing systems, damp-proofing, and general industrial coating applications.

    Oxidized bitumen is produced by air-blowing (oxidizing) straight-run bitumen, which raises its softening point and reduces penetration, giving it higher heat resistance and less temperature sensitivity than standard penetration grade bitumen used in roads.

    Yes, its elevated softening point compared to standard penetration grades gives it better resistance to softening and deformation in high-temperature conditions.

    Oxidized bitumen grades are typically tested per ASTM D312, covering softening point, penetration, and related physical properties for industrial and roofing applications.

    Application temperatures generally range from 180–210°C for hot-applied systems, though the exact temperature depends on the specific process and equipment used.

    It should be stored in a cool, dry, covered area away from direct heat sources, in sealed drums or blocks to prevent contamination and moisture ingress.

    Yes, Black Rock Bitumen supplies Bitumen 75/25 in drums, jumbo bags, or bulk from Dubai under FOB, CFR, or CIF terms with third-party inspection available.