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FIBC Bags: 6 Frequently Asked Questions

FIBC Bags: 6 Frequently Asked Questions by Qube UK

In this article we answer the most frequently asked questions surrounding Flexible Intermediate Bulk Containers/ FIBC Bags.

With the constant development of the construction industry FIBC Bags are being more frequently used on a daily basis.

FIBC Bags are typically used for materials that are too light to have enough weight to be handled by traditional conveyors.

They can carry everything from granules and powdered products to super-lightweight powders.

Manufactures make the bags in all standard sizes that are able to carry materials that won’t damage the FIBC bag.

Bags are available with different types of valves for product discharge, dust extraction, sealing etc.

Depending on where the source of the bags is from they can also be custom made to specific customer request.

Table of contents:

    6 Frequently Asked Questions:

    Below is a list of the questions we commonly see on a regular basis that you too may also have.

    We hope they help you understand FIBC Bags a little better.

    Giving you enough insight to have FIBC Bag questions of your own answered too if it’s required.

    If you’re looking to purchase FIBC Bags visit the Qube UK shop here.

    1) Are Bulk Bags Recyclable?

    Simply said, FIBCs are composed of 100% polypropylene and can be recycled.

    One exception to the above is that most recyclers only accept large amounts of garbage.

    Often FIBCs are not accepted in your normal recycling containers.

    The bag may contain materials that cannot be recycled for reuse directly.

    However, they can still be ground up and used as filler material to create new FIBC bags.

    The scraps can also be melted down and used to create FIBCs under the new FIBC bag specifications.

    FIBC bags are sufficiently strong and can be cleaned.

    This means they can also be used for other shipping applications after their original use has been fulfilled.

    2) How Much Product Can a Bulk Bag Hold?

    Jumbo bags are designed to carry loads of up to 4,000 pounds.

    They’re made to have a Safe Working Load (SWL) meaning they can sustain between 1,000 to 4,000 pounds load.

    A few specialized bags can carry up to 5,000 pounds, but they are rare and difficult to come by.

    There are 2 main FIBC Bag specifications to consider for new FIBC Bag purchses

    The first specification is Strap Specification, or Strap Tear using the ISO 11992-1 standard.

    This specification is the means by which FIBC bags are tested for strap tear resistance.

    The second FIBC Bag Specification to consider is FIBC Dust Test.

    This allows us to know how much dust can pass through each FIBC bag.

    The dust test is conducted using the ISO 14688 standard.

    Bags that meet FIBC dust tests are usually suitable for bulk solid materials that produce a lot of dust when in transport or when in storage.

    3) Can FIBCs Be Reused?

    Bags may be reused under specific conditions.

    The bag must be intended and tested for multiple uses.

    This reuse certification varies based on specific conditions.

    The FIBC bags must be in good physical condition with no visible defects.

    Bags must have an SFR of 6:1 in order to be reused.

    For more information on FIBC Bags visit Qube UK here (

    4) What Is The Difference Between U-Panel, Circular, & 4-Panel bulk bags?

    U-Panel Bags

    U-panel bags are created using three body panels.

    One of the panels runs the full length of the bag.

    The bottom of the pouch is made out of two more pieces of fabric sewn into the larger piece, giving it four sides.

    When filled, the U-panel bags will preserve a rectangular form similar to other construction types.

    Especially a U-panel bag with baffles.

    U-panel bags are an industry standard.

    They’re the most common of their kind, with high safe working loads (SWLs) and long-lasting quality.

    Circular Bags

    Circular bags on the other hand adopt a slightly different design.

    They’re comprised of a tubular piece of fabric that wraps around all four sides of the bag for stitching only on the top and bottom.

    Although the fabric is tubular, when filled, the circular baffle bag has the shape similar to that of a square bag.

    When a circular bag is filled, there’s a widespread misconception about regarding it’s shape.

    They’re simply made out of a single piece of fabric that encloses all four sides of the bag.

    The fabric of a 4-panel bag is made from four separate pieces that are stitched together to form a square structure.

    4-Panel Bags

    A 4-panel bag will maintain its square form when filled, similar to that of other construction materials.

    4-panel bags tend to keep their form better than U-panel bags, and U-panel bags hold their form better than circular bags.

    The main disadvantage of 4-panel bags is their higher volume of stitching required to keep the bag together.

    This might allow for a larger number of bag components that are susceptible to failure.

    4-panel bags, on the other hand, are great for storage since they retain their form when packed.

    Each design comes with both its advantages and disadvantages.

    Depending on the job it’s essential to select the most suitable design for you.

    5) What is the Coating or Laminate on a Bulk Bag?

    The laminate is a second polypropylene film that serves as a coating.

    The film is applied to the bag’s fabric, filling in the tiny gaps in the poly weaves.

    This film may be applied on both the inside and outside of the bag.

    A sealant or laminate applied to the walls also functions as a moisture barrier.

    For some applications, a poly liner is a superior option for protecting the contents.

    The bag will not be completely waterproof regardless of whether it is coated or has a liner.

    6) What Does 5:1 and 6:1 SF Mean?

    All woven polypropylene bags are intended to be used only once.

    When single use bags are rated against the Safety Factor Ratio (SFR), they score a 5:1.

    This means that they can carry five times their rated safe working load (SWL).

    We advise against filling a bag above its safe operating load for safety reasons.

    For multiple uses, some woven polypropylene FIBCs are produced specifically.

    Multiple usage/multiple trip bags are designed to carry up to six times their safe working load and can sustain 6:1 safety factor ratio.

    As previously stated, we do not recommend filling a bag to its safe operating load due to safety reasons.

    To Summarise: FIBC Bags: 6 Frequently Asked Questions

    Having now come to the end of this article we hope we answered any questions you sought after before reading.

    We have covered a range of topics and talking points hopefully widening your knowledge.

    Thank you for reading FIBC Bags: 6 Frequently Asked Questions.

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    Top 5 Uses For Bulk Bags And FIBC Bags

    Top 5 Uses For Bulk Bags And FIBC Bags

    In this article, we are going to explore FIBC Bags and Bulk bags, giving you our top 5 list on what they can be used for.

    These are Bulk bags that you would put anything into and then haul away to a landfill or somewhere else that is not your property.

    Bulk bags come in many different weight capacities and sizes making them usable for everyone from the individual to the construction worker.

    Flexible Intermediate Bulk Containers (FIBCs) are a fantastic option for transporting and storing dry flow-able products.

    If you are currently exploring new methods for transporting and storing your dry flow-able product, here are five reasons why FIBC bags might be the one for you.

    Table of contents:

      What Are FIBC Bulk Bags?

      FIBCs are also known as bulk bags, big bags and super sacks.

      Essentially, an FIBC bag is industrial suitable bagging in which you can commonly store materials such as construction debris and agricultural waste.

      The material in Bulk Bags or FIBC Bulk Bags can be made of polyethylene, canvas or other industrial fabrics.

      Top 5 uses for FIBC Bulk Bags:

      1. Construction and building materials

      Within the construction industry people are heavily dependant on the fast and efficient supply of materials.

      These materials might include: gravel, stone, sand, cement as well as minerals and metals.

      As a result, it’s critical to have sturdy and long-lasting bags to transport building supplies.

      The FIBC bag can fulfil the demands of the business since it is robust and adaptable enough to be relocated on-site.

      Additionally, they may be readily utilized to move goods over vast distances.

      Aside from these uses, FIBC Bags are used in a variety of sectors.

      If you’re searching for a strong, sturdy, and long-lasting packing solution for your business, FIBC Bags are worth considering.

      We can assist you in achieving greater profit and operational savings through an effective packing technique as a reputed FIBC Bulk Bag distributer.

      If you would like to purchase FIBC Bulk Bags, visit Qube UK here.

      2. Safe transportation of Critical Products

      Some goods, are easily flammable and subject to static charges, which can cause explosions.

      Why? Because this is why it’s tough to relocate them, therefore a packing technique that minimizes danger is required.

      FIBC Bulk Bags provide you with a safe and inexpensive alternative for the transportation of potentially dangerous goods.

      Static control bags are ideal for stacking, storing, raising, and transporting flammable commodities like petroleum.

      One of the most significant features is that Bulk Bags ensure safe storage by preventing contact with critical components.

      3. Carrying fine powder

      When it comes to handling fine materials, I recommend using IFBC bags, particularly those with sift-proof seams.

      This enables the FIBC Bulk Bags to maintain the fine powder from leaking from the bags.

      In reality, Bulk bags with sift-proof seams can likewise be used in a small scale in addition to industrial applications.

      Materials include:

      Concrete, powdered metals, and minerals such as titanium dioxide, zinc ash, cobalt powder, carbon black, and food-grade powders like skimmed milk and spices to name a few.

      A breathable FIBC bag might lose some of the contents, so if you’re transporting items like grains, choose a coated FIBC bag.

      4. Transportation

      The thermoplastic industry, which serves nearly every other sector in the globe, is extremely reliant on mass packing for its supply.

      For example, Bulk Bags can transport large quantities of plastics such as:

      High-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE) and medium-density on the same Bulk Bag.

      Polyethylene is usually sent from the factory to factories as pellets.

      When transporting and loading an FIBC bag it is done on pallets or by lifting it from the loops.

      Depending on the style of the bag this can be done by one person or may take two.

      Emptying the bags is easy, you can use the special discharge spout or simply cut it open

      You no longer need to worry about bulk transportation of powdered and granular products. You can contact

      5. Maintaining the quality and stability of agricultural products

      Storage and transportation of agricultural products contribute to waste, which can be reduced with better packaging.

      Agricultural Bulk Bags, also known as agricultural FIBC bags, are highly utilized in the agriculture industry.

      Grain, bean and pea products, along with other animal feeds and fertilisers, are examples of products you’ll find in agricultural Bulk Bags.

      These bags are made of a sturdy material that enables them to maintain their form while saving room on the way.

      Furthermore, the breathable or “uncoated” form of FIBC Bulk Bags allows air and moisture to pass through more easily, reducing spoilage while maintaining the quality of agricultural products.

      What Are the Different FIBC Designs?

      There are four main designs of FIBCs, each with its own set of characteristics

      Baffle Bags

      Baffle bags can be identified by the presence of a piece of fabric on certain four-panel and tubular luggage.
      The handle’s inner lining, as well as the sewn-in features on this tote, add stability and improve its appearance.

      Baffle bags may help to increase efficiency in storage areas and shipments.

      Tubuluar / Circular Bag

      Tubular: Also known as a circular bag, this style lacks vertical seams.
      The cloth is produced on a circular loom and cut and measured to different heights for various bag capacities.


      Four-panel: Four-panel bags are made from four distinct pieces of fabric that are then stitched together.
      The pieces of cloth bundle are stitched together to make a bag that is nearly rectangular in shape.


      The bag has a U-shaped profile, which is supported by the center panel. This design employs only one panel for the two opposing sides and the bottom, making it ideal for strength and structure.

      To Summarise: Top 5 Uses For Bulk Bags And FIBC Bags

      Why buy bulk bags?

      • Bulk bags are often used instead of drums which can be dangerous for workers, Bulk Bags are much safer to handle.
      • More economical than drums.
      • Lighter than drums, typically by 15% or more.
      • Have a larger capacity for the same volume as a drum making them easier to pack and ship.
      • Bulk bags are most often made of Polyethylene, making them easy to clean and reuse.
      • They can be crushed for storage, something drums cannot do.
      • Bulk bags can be stacked for storage, reducing the amount of work needed in the warehouse or yard when they need to be stored temporarily.

      Bulk Bags are an amazing way for transporting and storing different types of goods safely and efficiently.

      Head over the the Qube UK website if you’re looking to purchase Bulk Bags, purchase Debris Netting or purchase Cable Ties.