How to Specify FIBC Liners: Thickness, Barrier Performance, and Filling Compatibility？
Oct 29, 2026
Quick Answer
Choosing an FIBC liner requires more than specifying polyethylene film or selecting a thicker material. Buyers need to match the liner's material, thickness, dimensions, attachment method, and barrier performance to the packed product and the filling and discharge process. A standard PE liner can help contain fine powders and reduce moisture transfer, while high-barrier structures may be necessary for products sensitive to water vapor or oxygen. For automated operations, liner shape and outlet alignment can be just as important as film strength.
Key Takeaways
Choose liner material according to chemical compatibility, moisture sensitivity, and contamination requirements.
Specify film thickness in microns or mils, but do not treat thickness alone as proof of barrier performanc...
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