Carton-compatible format
A 3D liner can be matched to the usable space inside a corrugated carton, while a 2D format can be reviewed for mailer-style use.
1 / 4 Flexible Thermal Packaging · Box Liners & Thermal Mailers
Disposable Foil Insulated Box Liner
A disposable flexible liner that adds a reflective facing and foam insulation layer inside a corrugated shipping carton. Choose a 2D mailer or 3D liner format from three reference size-and-thickness combinations, then confirm the selected model. A packout is the complete arrangement of the product load, coolant, insulation, carton and closure; its thermal duration must be verified as a complete system.
Product formatFlexible 2D mailer or 3D insulated liner
Reference dimensions32 × 22 × 30, 32 × 23 × 28 or 37.5 × 25.5 × 34 cm
Reference thicknesses2, 2.5 or 3 mm
Construction familyFoil with expanded polyethylene (EPE) foam or air-bubble structure; confirm selected build
Shipping configuration note:Select the liner with the carton internal dimensions, product load, coolant type, loading pattern, closure method and shipping-lane temperature exposure in view. Thermal duration must be established by testing the complete shipping arrangement.
Product Overview
Flexible Insulation for Corrugated Shipping Cartons
The liner is intended to add a flexible insulation and radiant-barrier layer inside a carton while remaining foldable for storage and assembly. The available construction descriptions include sealed foil, coated foil and air-bubble foil formats. Final dimensions, layer structure, seams and closure must be tied to one selected configuration before ordering.
Reflective and foam layers
The foil surface and expanded polyethylene foam layer are used to reduce heat transfer as part of the complete package.
Foldable handling
The flexible format supports flat delivery, storage and on-site carton assembly.
Packout integration
The liner can be combined with a corrugated carton and conditioned coolant after quantity and placement are validated.
Typical applications
- Cartonized shipments of perishable foods
- Temperature-sensitive sample and ingredient distribution
- Passive parcel packouts requiring a flexible liner
Information needed for selection
- Product load (payload) dimensions, mass and starting condition
- Required product temperature range or holding objective and route duration
- Usable internal space or pallet footprint and load height, closure cycle and route exposure
Product role:This flexible liner adds a reflective and foam insulation layer inside a corrugated carton or can be configured as a thermal mailer. It is one component of a passive cold-chain packout—the complete arrangement of the product load, coolant, insulation, carton and closure.
Product Specifications
Reference Liner Configurations
Use the entries below as starting points for carton-fit review. Confirm how each size, thickness, material and closure option maps to the selected liner before sampling or production.
Format options2D mailer · 3D carton liner
Construction optionsSealed foil · Coated foil · Air-bubble foil
| Specification | Reference data | What to confirm |
|---|---|---|
| Reference size and thickness 1 | 32 × 22 × 30 cm; 2 mm | Confirm dimension order, finished tolerance and sealed-foil construction. |
| Reference size and thickness 2 | 32 × 23 × 28 cm; 2.5 mm | Confirm dimension order, finished tolerance, coated-foil build and closure. |
| Reference size and thickness 3 | 37.5 × 25.5 × 34 cm; 3 mm | Confirm dimension order, finished tolerance, air-bubble-foil build and 2D or 3D format. |
| Foam layer | Expanded polyethylene (EPE) family description | Confirm density, thickness, lamination and compression requirements. |
| Thermal duration | Established by complete-packout testing | Provide the product-temperature range, transit time, carton, coolant and route profile. |
Before ordering:Reference dimensions and constructions are starting points, not a guarantee that every combination is available. Final values must be recorded on the product drawing and order specification, and thermal performance must be verified with the complete packout.
Use & Packout
Size, Assemble and Close the Liner Consistently
Confirm the finished liner dimensions and closure before packing. Where coolant is required, pre-freeze or otherwise condition it to the required starting state and use the quantity and placement defined for the complete packout.
Confirm carton fit
Match the finished liner dimensions, thickness and 2D or 3D format to the usable internal space of the selected carton.
Inspect the liner
Check the foil surface, seams and closure area for punctures, tears, open seals or contamination before loading.
Prepare the product and coolant
Bring the product load and any gel packs or other coolant components to the starting conditions defined for the shipping procedure.
Load without damaging the barrier
Place the liner in the carton, arrange the product and coolant as documented, and protect the foil and seams from sharp edges.
Close and verify
Close the liner and outer carton using the selected method, then verify the assembled packout against the approved packing instruction.
Complete transport configuration
Thermal performance depends on the complete load and route conditions.
Confirm the minimum and maximum product load, any coolant or other thermal-control component used, starting conditions, closure and opening frequency, route ambient-temperature profile and transit duration in a defined complete-configuration test or qualification protocol.
WHO pharmaceutical cold-chain shipping-container guidance
ISTA 7E thermal transport testing overview for parcel delivery
FDA sanitary-transportation responsibilities for applicable food operations
These references explain industry qualification and transport practices. They do not certify this product or replace testing of your complete packout. Using an ISTA 7E profile alone does not constitute ISTA certification.
Project Configuration
Need a Liner Matched to Your Carton?
Share the carton internal dimensions, product load, required product-temperature range, transit time, route ambient profile, coolant arrangement, closure preference and expected order quantity. A liner configuration can then be reviewed for fit, manufacturing feasibility and complete-packout testing.
Finished dimensions and thickness2D or 3D formatFoil and foam constructionSeam and closure methodPrinted artworkCarton packing quantity
Product Documents
Request Documents for Your Selected Configuration
Available documents vary by model, material construction and project requirements. Ask us to confirm the files available for your quotation or sample.
Technical Data Sheet (TDS)
Dimensions, capacity where applicable, layer construction, closure details and carton-packing data for the selected model.
Material & Construction Information
Available layer, liner, insulation, closure and applicable material-compliance information for the selected configuration.
Product Drawing & Carton Data
Product dimensions, artwork area and carton data for the selected model.
Frequently Asked Questions
Before You Select This Product
Use these answers for initial selection. For ordering and packout setup, follow the specifications and instructions confirmed for your model.
Start with the usable internal dimensions of the closed carton, then allow for the liner thickness, product load, coolant and closure folds. Confirm the finished liner drawing before ordering.
No. Duration depends on the complete package, including the product load, coolant, carton, liner, starting conditions, closure and shipping-lane temperature exposure. Verify the assembled packout by testing.
It can be evaluated with conditioned gel packs as part of a complete packout. Coolant quantity, placement and separation from the product must be defined for the intended shipment.
This format is intended for single-trip use. Plan reuse only when the selected construction has documented cleaning, inspection and reuse limits.
Quote & Sample Request
Tell Us About Your Transport Configuration
Share the information below so our team can recommend a suitable product configuration.
- Product load (payload) weight, dimensions and starting temperature
- Required product temperature range or holding objective and route duration
- Usable internal space or pallet footprint, load height and closure requirements
- Ambient-temperature profile for the shipping lane
- Order quantity, printing and sample requirements
Selected product
Disposable Foil Insulated Box Liner
We will review a standard or custom configuration after receiving your project details.
Our response will cover the selected model, available documents and sample options.