Bitumen Flexitank Packaging
High-Capacity, Cost-Efficient, and Eco-Friendly Solution for Bulk Bitumen Transport
At Black Gold, our commitment to innovation extends beyond bitumen production — it encompasses how our product reaches the world. Flexitank packaging offers a highly efficient and sustainable method for transporting molten bitumen in bulk. This single-container, high-volume system is increasingly favored by petrochemical exporters due to its logistical simplicity, environmental compatibility, and cost-effectiveness.
Designed for non-corrosive, non-hazardous liquids, bitumen-grade flexitanks provide an optimal balance between volume, safety, and operational ease — ideal for international customers seeking scalable, one-shot solutions.
What is a Bitumen Flexitank?
A flexitank is a multi-layer, heat-resistant bladder installed inside a standard 20-foot shipping container. It serves as a temporary, sealed storage tank for molten or viscous liquids, particularly bitumen, base oils, and other liquid petrochemicals.
With a storage range between 14,000 and 24,000 liters, a single flexitank enables the transport of up to 20 metric tons of bitumen per container — significantly more than traditional drums or jumbo bags.
⚠️ Note: Flexitanks are exclusively used in 20-foot containers, as they require structural support from all four container walls. 40-foot containers are unsuitable.
Each flexitank is custom-fabricated for high-pressure resistance and thermal durability, suitable for bitumen filled at up to 110–120°C.
Flexitank Specifications
| Attribute | Specification |
| Length | 590 cm |
| Width | 234 cm |
| Height | 170 cm |
| Material | Polyethylene (inner layers) + Polypropylene (outer layers) |
| Net Weight per Unit | Up to 20,000 kg (20 tons) |
| Valve Types | Single-valve or Dual-valve options |
Why Choose Flexitank for Bitumen Transport?
Compared to other bitumen packaging methods, flexitanks provide unique advantages:
- ✅ Higher Volume Efficiency: Transports 20 tons in a single tank — replacing 110 drums or 20 jumbo bags
- ✅ Eco-Friendly: No drums to dispose of, minimal residual waste
- ✅ Lower Packaging Cost: Cheaper than drums, jumbo bags, or bulk tankers
- ✅ Faster Loading & Discharging: Simplifies terminal operations
- ✅ Minimal Contamination Risk: Each tank is single-use, food-grade, and sealed
- ✅ Reduced Handling Labor: One-time fill and one-time discharge
Black Gold’s Commitment to Flexitank Excellence
Our flexitank solutions are produced, filled, and dispatched under strict quality controls. We oversee:
- Material sourcing and multi-layer flexi manufacturing
- Expert container preparation and flexitank installation
- Real-time temperature monitoring during loading
- Custom sealing and pre-export inspection
- International shipment and logistics coordination
How Flexitank Bitumen Transport Works
- Container Preparation & Flexitank Installation
Before loading, the interior of the 20-foot container is insulated and reinforced to protect the flexitank against abrasion and thermal loss. Proper installation of the flexitank is crucial to avoid leakage during transport.
- Bitumen Loading
Molten bitumen (≤ 110°C) is pumped into the flexitank via a top or bottom valve system. The flexitank is then sealed. The container is left open briefly to allow the bitumen to cool and solidify naturally.
- Transport & Shipping
Once solidified, the container is closed, inspected, and customs-sealed. Containers are then loaded onto vessels for international shipping.
- Bitumen Discharge at Destination
At the destination port:
- The container is placed on a gentle incline ramp
- The bitumen is gradually re-melted and discharged
Critical Considerations for Safe Flexitank Use
Due to the high value and volume per unit, several safety practices must be followed:
- The container must be properly insulated and dry
- Temperature should be monitored during loading
- Avoid sudden unloading or temperature shifts during discharge
- Flexitank installation must be conducted by trained personnel
- Always perform a pre-shipment inspection
Let’s Package Smarter Together
Whether you’re shipping to Asia, Africa, Europe, or South America, Black Gold’s flexitank system offers a packaging method that’s greener, cheaper, and more efficient than traditional methods. Our engineering team will support you in selecting the ideal packaging format based on destination, delivery timeline, environmental conditions, and logistical capabilities.
