FIBC Bulk Bag Liners
Extend the performance of your FIBCs with our full range of FDA GRAS approved film liners, designed to add protection and preserve product integrity.
Liners for FIBC
Extend the performance of your bulk bags with our complete line of FDA GRAS approved film liners. Designed to fit securely inside the bag, liners add a critical layer of protection against moisture, contamination and product loss. They help preserve freshness, maintain purity and safeguard sensitive materials from outside elements.
By pairing strength on the outside with security on the inside, our liners ensure your FIBCs perform with consistency and reliability across every load.
Liner Attachment Types
Liners add protection and versatility, safeguarding fine or sensitive materials inside the bulk bag. They can be installed at the factory or purchased separately, with multiple integration methods to fit specific handling needs.
- Loosely inserted / no attachment: Simple placement for easy removal or replacement
- Tabbed in / sewn in: Secured at multiple points for reliable stability
- Glued in: Fully bonded to the bag body for maximum containment
Openings may also be cuffed and sewn to the fill and discharge spouts, ensuring a tight seal and dependable performance in demanding applications.
FIBC Liner Constructions
Available in three constructions: Form Fit, Lay Flat and Baffled—each is designed to deliver secure containment and dependable performance for sensitive materials.
Form Fit Liner
Form fit liners are designed to mirror the exact shape of an FIBC, including both the filling and discharge spouts. This precise fit ensures smooth filling and clean discharge, minimizing waste and protecting product integrity. Each liner can be custom-made to the customer’s exact size requirements, offering a seamless solution for specialized applications.
Applications
- Fine powders and dry flow products
- Food ingredients and pharmaceutical materials
- Chemicals and minerals requiring contamination control
- Moisture sensitive products
Key Features
- Tailored fit for maximum efficiency
- Custom spout dimensions available
- Enhanced product protection and cleanliness
- Reduced risk of leakage and contamination
- Compatible with a variety of FIBC styles
Lay Flat Liner
The lay flat liner is one of the most common and cost-effective FIBC liner styles. Built without spouts or contours, it is typically open at one end and heat-sealed at the other. These liners can be placed and secured inside a bulk bag much like a form fit liner. To ensure smooth filling, the liner is often pre-filled with air to eliminate twists or wrinkles before use.
Applications
- Agricultural products such as grains and seeds
- Food ingredients requiring added moisture protection
- Chemicals and minerals
- General-purpose dry flow products
Key Features
- Simple, economical design
- Open-ended with heat-sealed base
- Easy to insert and secure in FIBCs
- Recommended pre-fill with air for optimal performance
- Effective moisture and contamination barrier
Baffled Liner
For ultra-clean applications where a standard baffled FIBC is not enough, a baffled liner provides the ideal solution. These liners combine the protection of a film liner with the stability of internal baffles, ensuring both cleanliness and reliable performance.
By maintaining a square shape, baffled liners prevent bulging that can lead to a rounded footprint. The result is improved stability, safer stacking and significantly greater storage efficiency. Each liner is form fitted to the bag, creating a clean, controlled interior environment while preserving the functional benefits of baffled construction.
Applications
- Food-grade ingredients requiring contamination control
- Pharmaceutical powders and fine chemicals
- Sensitive agricultural products
- High-value specialty materials
Key Features
- Combines film liner protection with baffle support
- Maintains square shape for safe stacking
- Reduces bulging and footprint distortion
- Increases storage and shipping efficiency
- Form fitted for clean, precise performance
Specialty Liners
Aluminum foil, anti-static, conductive and food grade liners are designed for the most sensitive applications. These liners provide advanced protection against moisture, contamination and static discharge, ensuring the integrity of high-value or delicate products.
At Colonial Bag Co. we deliver custom specialty liner solutions for customers who require the highest level of product safety and performance.
Aluminum Foil Liners
Aluminum foil liners, constructed from aluminum-laminated films, deliver unmatched protection against oxygen, moisture and UV light. By sealing out external elements, they also reduce or eliminate product odor. Each liner is form fitted to the FIBC, ensuring efficient filling, clean discharge and easy handling.
Applications
- Food products requiring extended shelf life
- Pharmaceutical ingredients and fine chemicals
- Moisture or oxygen-sensitive powders
- Odor-sensitive agricultural products
Key Features
- High barrier against oxygen, moisture and UV exposure
- Effective odor control for sensitive materials
- Custom form fit to bulk bags
- Enhances performance during filling and discharge
- Supports safe storage and transport of high-value products
Anti-Static and Conductive Liners
Anti-static and conductive liners are engineered with specialized film additives that safely dissipate static charges. By controlling static build-up, these liners protect both products and environments from the risks associated with flammable materials. They also help reduce or eliminate dry chemical cling, improving safety and handling.
Applications
- Chemicals and powders prone to static build-up
- Flammable or combustible products
- Pharmaceuticals requiring clean handling
- Industrial materials sensitive to electrostatic discharge
Key Features
- Formulated to dissipate static safely
- Enhances protection in volatile environments
- Reduces dry chemical cling
- Compatible with a variety of FIBC designs
- Available in custom sizes and specifications
Food and Pharmaceutical Liners
Polyethylene and polypropylene are FDA-approved for direct food contact, making them the trusted foundation for our food and pharmaceutical grade liners. Manufactured in BRCGS and AIB certified clean rooms, these liners are produced under strict quality and hygiene standards to safeguard product integrity.
Applications and Features
- Safe for food, pharmaceutical and nutraceutical products
- Produced with 100 percent virgin raw materials
- Certified clean room manufacturing with HACCP compliance
- Built-in contamination control with metal detection and air cleaning
- Precision sealing and inspection for consistent quality
- Full traceability through strict record-keeping
At Colonial Bag Co. we are more than just bulk bag suppliers. We are trusted partners providing reliable industrial packaging solutions.
Have questions or need help choosing Bulk Bag Liners? Reach out to our team today!
