Bitumen — the heavy, viscous residue of crude oil refining — is the binder that holds the world's roads together, and a workhorse of waterproofing and industrial coatings. The global asphalt (bitumen) market was valued at roughly US$62 billion in 2026 and is forecast to grow toward US$89 billion by 2035 (about a 4% CAGR), with the Asia-Pacific region alone accounting for close to half of demand. For procurement teams, the challenge is less about finding bitumen than about buying the right grade, verified to the right standard, in a packaging format your site can actually handle. This guide walks through how. Browse available grades on our Petrochemicals catalogue, part of our Industrial Products & Trading sector.
The short version
Pick your grade by climate and traffic: stiffer 60/70 (or VG40) for hot, heavy-traffic roads; softer 80/100 (or VG30) for cooler or lighter-duty pavements. Specify to a named standard (EN 12591 or ASTM D946 for penetration grades), demand a recent batch test certificate, and choose a packaging format — bulk, drums or bitubag — that matches your handling at destination.
Step 1 — Decide what the bitumen is for
Most traded bitumen is paving grade for asphalt roads, but the family also covers oxidised (blown) grades for roofing and waterproofing, cutback and emulsion products for cold application, and polymer-modified bitumen (PMB) for high-performance pavements. Application drives everything downstream: a road-paving contract calls for a defined penetration or viscosity grade, while a waterproofing buyer is looking at softening point and oxidation. Define the end use before you talk grade.
Step 2 — Understand penetration vs viscosity grading
Two classification systems dominate. Penetration grading measures how far a standard needle sinks into a sample at 25 °C under a 100 g load for 5 seconds, expressed in tenths of a millimetre — so 60/70 means 60–70 dmm. It describes consistency at service temperature and is still the most common system across the Middle East, Africa and much of Asia. Viscosity grading (VG10, VG30, VG40, VG50) instead measures resistance to flow at 60 °C (service) and 135 °C (mixing), capturing behaviour across the full working range; the higher the VG number, the stiffer the binder. Viscosity grading is the more performance-oriented method and is mandated in markets such as India and the United States.
Step 3 — Check the specifications that matter
Whichever system applies, the same handful of parameters decide field performance: consistency (penetration or viscosity), softening point, ductility, flash point and solubility. The table below maps the most commonly traded paving grades to typical use cases. Always confirm exact limits against the current standard and your pavement design.
| Grade | System / standard | Relative stiffness | Best suited to |
|---|---|---|---|
| 40/50 | Penetration (EN 12591 / ASTM D946) | Hardest | Very hot climates, heavy load |
| 60/70 | Penetration (EN 12591 / ASTM D946) | Stiff | Hot climates, high-traffic roads |
| 80/100 | Penetration (EN 12591 / ASTM D946) | Softer | Moderate / cooler climates |
| VG30 | Viscosity (ASTM D3381) | Medium | Most highway / general paving |
| VG40 | Viscosity (ASTM D3381) | Stiff | Heavy-traffic, high-temperature |
A common pitfall is buying on penetration value alone. Two cargoes can share a penetration band yet differ in softening point or temperature susceptibility, which is exactly what shortens pavement life. Our laboratory teams cross-check certificate values against the named standard before release; see how in Quality Assurance.
Step 4 — Verify before you ship
- Request a recent batch test certificate covering penetration or viscosity, softening point, ductility, flash point and solubility — tied to a named standard and edition, not a generic data sheet.
- Confirm the grade and standard by name. Ask whether the cargo is EN 12591, ASTM D946 or ASTM D3381 conformant, and which exact grade it represents.
- Pin down origin and consistency. Major supply comes from the Middle East, Canada, Venezuela, Kazakhstan and parts of Asia; refinery source and crude slate affect lot-to-lot stability.
- Match packaging to your site. Confirm whether you have heated storage for bulk, or need drums or bitubags — and specify loading temperature and anti-stick liner where relevant.
- Use independent pre-shipment inspection at load port for larger contracts, and retain witness samples for dispute resolution.
Arian Holding builds these checks into every order through our global sourcing network and certified quality-assurance process, then manages heated transport, drumming and warehousing via our Supply Chain & Logistics capability.
Step 5 — Choose the right packaging
Packaging is a sourcing decision, not an afterthought — it dictates handling cost, waste and how the product is discharged. The main options are bulk in heated tankers or bitutainers (lowest unit cost, but requires heated storage at destination), steel drums of roughly 150–185 kg (robust, stackable, good for smaller volumes), and jumbo bags / bitubags of about 300 kg to 1 tonne, whose plastic liner is engineered to melt into the receiving tank, cutting drum disposal. Choose by destination infrastructure, order size and climate, and confirm the format on the contract.
Step 6 — Manage price and supply risk
Bitumen pricing tracks crude oil with a seasonal paving overlay, so timing matters. Indicative export levels in mid-2026 ran broadly in the US$500–895 per tonne range depending on origin, grade, packaging and Incoterm, with futures benchmarks easing through June. Supply is concentrated among a handful of refining hubs, which makes regional availability and freight as important as the headline price. The practical takeaways: qualify at least two refinery-backed sources, buy ahead of the paving season rather than into it, and fix packaging and delivery terms early. Petrochemicals sit alongside our polymer and industrial minerals lines, so multi-material programmes can be consolidated under one trade desk.
Frequently asked questions
What is the difference between penetration grade and viscosity grade bitumen?
Penetration grading (e.g. 60/70, 80/100) classifies bitumen by how far a standard needle penetrates a sample at 25 °C, so it describes consistency at service temperature. Viscosity grading (e.g. VG30, VG40) measures resistance to flow at 60 °C and 135 °C, capturing behaviour at both road-service and mixing temperatures. Viscosity grading is the more modern, performance-oriented system, while penetration grades remain widely specified in many markets.
Should I buy 60/70 or 80/100 bitumen?
Choose by climate and traffic. The stiffer 60/70 grade resists rutting better in hot climates and on heavy-traffic roads, while the softer 80/100 grade is more workable and crack-tolerant in cooler conditions or lighter-duty pavements. Always match the grade to the local specification and pavement design rather than price alone.
Which international standards govern paving bitumen?
Penetration grades are commonly produced to ASTM D946 or EN 12591, while viscosity grades follow standards such as ASTM D3381. Ask suppliers to state the exact standard and edition, and to confirm penetration, softening point, ductility, flash point and solubility on the test certificate.
How is bitumen packaged for export?
Common formats are bulk in heated tankers or bitutainers, steel drums of roughly 150 to 185 kg, and jumbo bags or bitubags of about 300 kg to 1 tonne whose liner melts into the receiving tank. The right format depends on destination handling, volume, climate and whether heated storage is available at the receiving end.
What documents should I request from a bitumen supplier?
Request a recent batch test certificate showing penetration or viscosity, softening point, ductility, flash point and solubility against the named standard, plus origin, packaging details and loading temperature. For larger contracts, independent pre-shipment inspection and retained witness samples are good practice.
Sourcing bitumen with Arian Holding
Arian Holding supplies penetration- and viscosity-grade paving bitumen, plus oxidised and modified grades, in bulk, drums and bitubags — backed by laboratory certification, multi-origin sourcing and heated logistics across the GCC and beyond. Whether you need a single trial cargo or a forward programme, our trade desk can structure compliant, grade-matched supply to your specification. Request a quote with your target grade, volume, packaging and destination and we will respond with current options.
Sources: Business Research Insights — Asphalt (Bitumen) Market; Trading Economics — Bitumen; Petronaft — Global bitumen export prices; Gold Bitumen — Penetration vs viscosity grading; Infinity Galaxy — Bitumen packaging; standards ASTM D946, ASTM D3381 and EN 12591. Specifications, grades and prices are indicative and provided for general information only; always confirm against the current standard and your own programme — this is not engineering or trading advice.