Bitumen Shipping: Drums vs Bitutainers vs Flexitanks
Compare bitumen containers, bitutainers, flexitanks, polycubes and bulk vessels on cost, volume, heating and handling — with a decision table for importers.
Published: 2026-08-08 · CommoFlow
Ask five bitumen suppliers how they ship and you will get five different answers — drums, bitutainers, flexitanks, polycubes or bulk vessel. The packaging decision is not cosmetic. On a 1,000-tonne order it routinely moves the landed cost by USD 30–90 per tonne, and it dictates what equipment you need waiting at the other end.
The five ways bitumen actually moves
1. New steel drums
The default for smaller buyers and for markets without terminal infrastructure. Standard fill is 150–185 kg net per drum, roughly 80 drums to a 20ft container (about 12–14 MT). Drums are simple: no heating equipment, no deposit, no return leg. You pay for that simplicity in packaging cost and in labour at discharge.
2. Bitutainers (heated tank containers)
A bitutainer is an insulated ISO tank container fitted with heating elements — usually electric or thermal-oil — carrying 20–26 MT. It is the workhorse for mid-size regular buyers. The unit is reusable, which is both the advantage and the complication: someone has to own the return leg, or you pay a deposit that is only released when the empty comes back.
3. Flexitanks
A single-use bladder fitted inside a standard 20ft container, typically 20–24 MT. Flexitanks are cheap per tonne and disposable, but bitumen is not a friendly cargo for them: the product must be loaded hot and the receiver needs a way to reheat or decant before the bitumen stiffens. They suit shorter transits and warmer destinations far better than long winter voyages.
4. Polycubes and bitubags
Roughly one-tonne blocks of bitumen in a meltable polymer liner, stacked in a standard container. The liner melts into the mix, so there is no drum disposal and no reheating of a whole tank. Popular for penetration-grade bitumen going to contractors who batch small volumes.
5. Bulk vessel or heated road tanker
The lowest cost per tonne by a wide margin, and the only sensible route above a few thousand tonnes. It also has the highest barrier to entry: the receiver needs heated storage, a discharge line and a terminal slot. For more on the vessel side, see our bulk bitumen transportation guide.
Cost comparison at a glance
| Method | Typical load | Packaging cost | Heating needed at discharge | Best for |
|---|---|---|---|---|
| Steel drums | 12–14 MT / 20ft | Highest per tonne | No | Small orders, no terminal |
| Bitutainer | 20–26 MT | Medium (plus deposit) | Yes — built in | Regular mid-size buyers |
| Flexitank | 20–24 MT | Low, single use | Yes — external | Short transits, hot climates |
| Polycube / bitubag | ~20 MT / 20ft | Medium | No — melts in mix | Contractors batching small lots |
| Bulk vessel | 1,000 MT+ | Lowest per tonne | Yes — terminal | Large programmes |
The four questions that decide it
- What is waiting at the discharge port? No heated storage means drums or polycubes, whatever the per-tonne maths says.
- How long is the voyage? Every extra week is more heat loss and more risk of a cargo that will not pump.
- Is this a one-off or a programme? Bitutainer economics only work when the equipment cycles. A single shipment carries the whole deposit and return cost.
- Who bears the demurrage risk? Heated equipment sitting at a congested port is expensive in a way drums are not.
Where buyers lose money
Three mistakes recur. Comparing quotes on the bitumen price alone, while the packaging and return legs differ by USD 40 a tonne. Booking bitutainers into a port with no reheating capability, then paying to decant. And accepting a flexitank on a six-week transit in winter, which is how cargoes arrive as a solid block.
If you are still deciding on grade rather than packaging, start with bulk bitumen: meaning, grades and how to buy it, and use our checklist for choosing a bitumen shipping company once the format is settled.
Get the packaging decision right and the rest of the chain gets simpler. CommoFlow quotes bitumen delivered on the basis that actually fits your discharge setup, not the one that is cheapest to load. Talk to our desk about your destination and volume.