As global trade in liquid chemicals continues to grow, the way these products are transported is reshaping the economics of international chemical logistics. From base oils shipped across oceans to polyols delivered for polyurethane production, manufacturers are seeking transportation solutions that reduce costs while maintaining product quality. Compared with traditional steel drums, IBCs, and ISO tank containers, flexitanks have become an increasingly popular solution for transporting non-hazardous liquid chemicals safely, efficiently, and economically.

Designed for Non-Hazardous Liquid Chemicals

A flexitank converts a standard 20-ft container into a bulk liquid carrier with a loading capacity of up to 24,000 liters, making it ideal for one-way international shipments. Typical chemical products suitable for flexitank transportation include:

l  Industrial oils: Base oils, lubricating oils, castor oil, white oil, glycerin, hydraulic oil, transformer oil, industrial gear oil. Among these, base oil is one of the world's most traded lubricant raw materials, requiring high standards of cleanliness and cost-efficient transportation.

l  Chemical raw materials: Polyether polyols, polyester polyols, plasticizers, synthetic resins, detergents, disinfectants, surfactants, propylene glycol, ethylene glycol. These products are widely used in polyurethane, coatings, textiles, household chemicals, and many other industrial applications.

Why More Chemical Companies Choose Flexitanks

Compared with conventional packaging methods, flexitanks offer several important advantages.

l  Higher Loading Efficiency

A single 20-ft flexitank can carry up to 24,000 liters of liquid cargo, increasing payload by more than 35% compared with drum packaging. Higher loading capacity means fewer containers are required, helping reduce ocean freight and overall transportation costs.

l  Lower Total Logistics Costs

As a single-use solution, flexitanks eliminate empty package returns, tank cleaning, and ISO tank rental fees. By reducing packaging, transportation, and warehousing expenses, businesses can lower overall logistics costs by more than 30%.

l  Faster Loading and Unloading

Pump-assisted loading and discharge allow operations to be completed quickly with minimal labor. Compared with drums and IBCs, flexitanks significantly improve handling efficiency while reducing labor and operational costs.

l  Dedicated Packaging for Every Shipment

Each shipment uses a brand-new flexitank, eliminating the risk of cross-contamination between different products or production batches. This is especially valuable for chemical products that require high purity and consistent quality.

Typical Applications

Base Oils: As the primary raw material for lubricant production, base oils require clean transportation conditions. Uni Flexitank utilizes food-grade multi-layer PE films combined with a high-strength PP outer layer to protect cargo from external contamination while preventing cross-contamination between different grades of base oils.

Polyether & Polyester Polyols: Widely used in the polyurethane industry, polyether and polyester polyols are moisture-sensitive products. The excellent sealing performance of flexitanks helps isolate humidity and protect product quality during transportation. Flexitanks have already proven to be a practical and economical solution for container shipping and multimodal transportation of polyols.

Surfactants: Surfactants are widely used in detergents, emulsifiers, and industrial formulations. Some products are sensitive to temperature and oxidation during transportation. The multi-layer film structure of flexitanks provides reliable barrier protection while reducing leakage risks and minimizing product losses.

Uni Flexitank: Reliable Solutions for Chemical Transportation

Uni Flexitank specializes in manufacturing high-quality flexitanks for a wide range of non-hazardous liquid chemicals, including base oils, polyols, surfactants, plasticizers, and other industrial liquids.

Constructed with food-grade multi-layer PE films and high-strength outer materials, Uni Flexitanks deliver outstanding puncture resistance, impact strength, and sealing performance, ensuring cargo remains safe throughout ocean, rail, and road transportation.

Whether you're shipping chemical raw materials across continents or optimizing regional supply chains, Uni Flexitank provides a safer, more efficient, and more cost-effective bulk liquid transportation solution.