Fit the carton, not just the product
Compare usable internal space, liner thickness and closure so insulation does not crowd out your payload.
Insulated shipping liners
Insulated shipping liners for your existing cartons.
Add a thermal barrier inside the carton you already use. Explore insulated box liners for shipping food and other temperature-sensitive goods, with fit and suitability reviewed around your product and route.
No measurements needed to start. No payment required.
Built around your packing process
Thermal box liners that fit your packing process.
Keep packing practical
Discuss how the liner opens, fills and closes within your team’s normal packing process.
Plan the complete shipment
Consider insulation and cooling together rather than assuming a liner alone will maintain the required temperature.
Explore the options
Explore insulated liner requirements.
Start with your carton and payload. We will confirm the available liner construction and fit before you order.
Existing parcel cartons
Liners for routine parcel shipments
Discuss a liner for your existing carton sizes and temperature-sensitive products.
- Carton dimensions and usable payload space
- Liner thickness and closure requirements
- Order quantities matched to your usage
Good fit for: Repeat parcel sizes and an established packing workflow.
Help with the specification
Liner selection for a new packout
Start with the goods, route and temperature requirement when you have not selected a configuration yet.
- Chilled versus frozen requirement
- Refrigerant placement and available space
- Documentation needed to evaluate performance
Good fit for: New shipping routes or changes to your packaging configuration.
Compare what matters
How to choose insulated shipping liners.
A liner slows heat transfer; it does not actively cool the contents. Hold time depends on insulation, refrigerant, payload, starting temperature and ambient conditions. The complete packout needs evidence suited to your shipment.
- Internal carton dimensions
- Length, width and height help assess liner fit and remaining product space.
- Construction and thickness
- Compare available materials and documented properties for the intended configuration.
- Closure and packing procedure
- Consistent closure and handling matter as much as the listed dimensions.
- Freight and storage volume
- Compare delivered cost and storage needs, not only the unit price.
Liners for food parcels and recurring shipments.
Food parcel fulfillment
Discuss chilled or frozen goods, transit duration and the evidence needed for the full packout.
Repeat delivery routes
Work around the cartons, packing stations and order volumes your team already uses.
New temperature-sensitive products
Identify the requirements before selecting insulation and refrigerant.
Talk directly with Gelpax
Tell us where to start.
We’ll help with the details.
Share your approximate quantity and company details. Measurements and technical questions can follow after the first conversation.
- 1. Understand the requirement. What you ship and what needs protection.
- 2. Confirm sourcing options. Configuration, documentation and availability.
- 3. Review a clear quote. Quantity, price, freight and timing before you order.
Insulated shipping liner questions, answered.
Are thermal box liners and insulated shipping liners the same thing?
These terms commonly describe insulation placed inside a shipping carton. The name alone does not specify the material, thickness, closure or usable space. Compare those details, and the evidence for your shipping conditions, before choosing a liner.
Does the liner include a shipping box?
This category is for insulated liners, not shipping boxes. Tell us the carton you use; the quote will identify exactly what is included.
Do I still need ice packs?
That depends on your required product temperature and shipping conditions. Liners provide insulation, while refrigerants supply cooling capacity. Evaluate the complete configuration together.
Which measurements should I send?
If available, send the carton’s internal length, width and height plus your payload dimensions. You can submit an inquiry without measurements and provide them later.
Do I need a specification before contacting you?
No. Share your company, contact details and approximate quantity, or choose Not sure. Dimensions and technical details can follow after your initial inquiry.
What are the minimum order and delivery time?
We confirm the available configuration, minimum order, stock or production lead time, freight and transit estimate in your quote. An inquiry is not an order or a delivery commitment.
Can you help with recurring orders?
Tell us your expected usage and delivery locations. We will discuss sourcing and replenishment requirements before proposing commercial terms.