The liner is the barrier the powder actually touches. Our standard L-series covers moisture, oxygen, light and static requirements — each matched to a bag body and an attachment method.

Each build is a production standard, not a one-off sketch — so drawings, test files and repeat orders stay consistent.

Form-fitted PE with a laminated aluminium foil layer — oxygen, moisture and light barrier for high-value sensitive powders.
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Conductive PE liner for static-controlled filling and discharge; used with grounded Type C constructions.
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Anti-static PE liner that limits charge generation without a conductive path to earth.
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General-purpose LDPE liner with a basic moisture and dust barrier — the economical choice for non-sensitive goods.
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Form-fitted liner with dedicated baffles that hold the bag square without breaking the liner seal.
View FIBC bag details →| Build | Structure / barrier | Controls | Typical material | Bag type |
|---|---|---|---|---|
| L1C aluminium foil | Form-fitted PE + foil laminate | Moisture, oxygen, light | Cathode / anode powder, food additives, pharma | Type A / B |
| L1 conductive PE | Conductive PE film | Moisture, dust + static path | Combustible powders with grounded Type C bag | Type C |
| L2 anti-static PE | Anti-static PE film | Moisture, dust, low charge | Static-sensitive powders, no earth path | Type A / B / D |
| L3 standard PE | Flat or form-fitted LDPE | Moisture, dust | Chemicals, minerals, agricultural granules | Type A / B |
| L3 PE baffle liner | Form-fitted PE + matched baffles | Moisture, dust + shape control | Fine powders needing square, stable stacking | Type A / B |
Attachment matters as much as the film itself. Standard PE liners are simply placed in the outer bag; form-fitted, foil and conductive liners are fixed with adhesive-tape sewing or flash sewing so they cannot slip during discharge. Compare all four attachment methods →

Form-fitted PE with a laminated aluminium foil layer — oxygen, moisture and light barrier for high-value sensitive powders.

Conductive PE liner for static-controlled filling and discharge; used with grounded Type C constructions.

Anti-static PE liner that limits charge generation without a conductive path to earth.

General-purpose LDPE liner with a basic moisture and dust barrier — the economical choice for non-sensitive goods.

Form-fitted liner with dedicated baffles that hold the bag square without breaking the liner seal.
Tell us your material, load and handling method — our engineers will recommend a build and send the full spec.