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FIBC Liners

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FIBC Liners For Every Product & Application

FIBC bulk bags are fantastic solutions for transporting and storing large quantities of product safely and efficiently. They are commonly used in numerous industries including but not limited to agriculture, chemical, pharmaceutical, pet food, as well as metals and mining. In many of these industries, a bulk bag is not enough and needs to be paired with a FIBC liner. The features that are attained by using FIBC liners are:

  • Oxygen barrier
  • Moisture barrier
  • Chemical resistance
  • Anti-static properties
  • High Strength

This powerful combination is often used for food grade products and very fine powders. FIBC liners are inserted into each bag and work with both duffle top and spout top bags. FIBC liners can also be made with attachment tabs which allow the liners to be sewed, tied, or glued to the bag removing the chance of the liner discharging from the bag. The four most common types of bag poly liners are:

  • Lay-Flat Liners
  • Form-Fit Liners
  • Baffle Liners
  • Aluminum Liners

At National Bulk Bag, our FIBC specialists know that every customer and application is unique and they are ready to work with you to determine what liner is right for your specific application. Below are the four most common types of FIBC liners accompanied by brief descriptions and common applications. Don’t hesitate to reach out to our experts if you have any questions. Contact us by clicking here and filling out the form or give us a call at 1.888.237.4224.

Lay-Flat Polyethylene Liners

Lay flat polyethylene liners are the most common type of liners. They are cylindrical in shape, open at the top, and the bottom is often heat sealed. If the liner is heat sealed it must be cut to discharge the product. Lay-Flat polyethylene liners can come already inserted in the bag or can be purchased by the roll.

Form-Fit Polyethylene Liners

Form-fit polyethylene liners are specifically designed to take the exact form of the bag including the spout inlet and outlet. Form-fit liners improve the bags performance and protect the product packed from contamination during processing, storage, and transportation.

These liners also allow for a consistent fill and discharge of products because they do not have folds, pleats or other traps to slow down product flow. These liners can either be permanently attached to the bag or easily removed after each use.

FIBC In-Stock Liners & Bulk Bags with Liners

  • Standard Bulk Bag Liners – PE37x37x133 – Food Grade
  • Largest Stock Bulk Bag Liners – PE39x39x143 – Food Grade
  • BBN35X35X50ST-2200-LIN-FG – Spout Top, Spout Bottom
  • BBN37X37X63ST-2200-FG-LINER – Spout Top, Spout Bottom

FIBC Liner Educational Resources

  • A Quick Guide to FIBC Bulk Bag Liners
  • Four Common Uses For FIBC Bulk Bag Liners
  • When To Use a Polyethylene Liner
  • FIBC Liner Estimation Calculator

Baffle Polyethylene Liners

The form-fit baffle design can provide superior package performance and, at times, reduce storage and shipping costs. The baffle liner is form fitted to the FIBC and makes use of internal baffles to maintain a square shape and prevent bulging of the bag. The square shape of baffle poly liners can also help save space on pallets and in trucks. Some other features of baffle liners include:

  • Increased FIBC stack-ability
  • Increased stability
  • Can hold up to 30% more product in a given space
  • Protection from contamination
  • Formed spouts for filling and discharge

Aluminum Foil Liners

Form shaped aluminum liners, also known as foil liners, improve filling, discharging, handling and stability of the outside of the bag. Foil liners offer great moisture, oxygen, and UV protection and are compatible with a wide variety of bulk bags.

FIBC foil liners are made of aluminum-laminated films that protect the quality and the integrity of the product that is packed in the bag. Each foil liner can be manufactured using various aluminum compounds depending on the specific needs of each application. Some other features of foil liners include:

  • Preventing product damage and/or contamination
  • Available with top and/or bottom spouts for safe filling and discharge
  • Protection against moisture and oxygen
  • Can be manufactured using different materials to suit specific applications

To determine what bag poly liner is right for your unique application, click here to fill out our contact form or give us a call at 1.888.237.4224 to speak with one of our FIBC experts. Our bulk bag specialists have over 20 years of industry experience and are ready to work with you to create a custom FIBC bulk bag solution for your business.