Home / Oxidized bitumen / Bitumen 85/25
Oxidized bitumen · Air-blown

Bitumen 85/25 for roofing and waterproofing. Exported from Dubai.

A balanced air-blown bitumen with a high softening point and controlled hardness. For roofing felts, waterproofing, pipe coating and industrial protection.

At a glance
ASTM D36 · D5
80–90°C
Softening point (ASTM D36)
20–30
Penetration, 0.1 mm at 25°C
≥ 250°C
Flash point (ASTM D92)
50,000 MT
Supply capacity per month
HardBitumen 85/25Soft
Overview

Balanced hardness for roofing and waterproofing

Bitumen 85/25 is a medium-hard oxidized bitumen made by blowing air through straight-run bitumen at controlled temperature. The grade name gives the softening point (85°C) and penetration (25 dmm).

It combines heat resistance with enough flexibility for coating and saturating work, which makes it a common choice for roofing and membrane production.

Black Rock Bitumen supplies Bitumen 85/25 from Dubai to manufacturers, contractors and EPC companies across Africa, Asia and the Middle East.

  • High softening point for heat resistance
  • Balanced hardness and workability
  • Good adhesion for coating and saturating
  • Suited to roofing, membranes and pipe coating
  • Consistent softening point and penetration
Essential details
TypeOxidized (air-blown) bitumen
FeedstockCrude oil
HS code27132000
InspectionIncluded
Delivery termsFOB, CFR, CIF
PaymentTT: 30% advance, balance against customs documents (FOB) or B/L draft (CFR/CIF)
MarkingCustomizable on request
Supply capacity50,000 MT per month
PackingNew steel drum; jumbo bag
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Specification

Bitumen 85/25 specification

Typical specification for Black Rock Bitumen 85/25. Each batch is tested before shipment.

PropertyTest methodUnitMinMax
Specific gravity at 25°CASTM D70–1.001.06
Penetration at 25°C, 100 g, 5 sASTM D50.1 mm2030
Softening point (ring and ball)ASTM D36°C8090
Flash point (Cleveland open cup)ASTM D92°C250–
Solubility in trichloroethyleneASTM D2042wt.%99–

Tested and certified. Every shipment includes a Certificate of Analysis and MSDS. Batches are tested to ASTM methods for softening point, penetration, flash point and solubility.

Applications

Where Bitumen 85/25 is used

Typical uses for Bitumen 85/25.

01

Roofing felts

Saturant and coating for roofing felt and underlay.

02

Waterproofing membranes

Hot-applied and membrane waterproofing for roofs and foundations.

03

Pipe coating

Corrosion-resistant coating for steel pipelines.

04

Adhesives and mastics

Bonding insulation boards, tiles and laminates.

05

Damp-proofing

Protective coats on concrete and masonry foundations.

Related grades

Compare with other oxidized bitumen grades

See all oxidized grades →

Terms of payment

Payment terms for smooth transactions

Two straightforward ways to pay, built for international bitumen trade. Questions about your order or inquiry? Our team will walk you through them.

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TT method

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

LC at sight

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

Bitumen 85/25 MSDS

PDF
Bitumen 85/25 Safety Data Sheet
Download
Our FAQs

Frequently asked questions

Quick answers on Bitumen 85/25 properties, use and supply.

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