Coatings for heat sealing
Water-based coatings designed to replace PE laminations on paper, open lower-temperature sealing windows, and build recyclable packaging with industrial performance.
Seal initiation
>65°C
Seal strength
Up to 800 g/in
Structures
All-paper ready
Functions
MVTR + OGR + water
Paper-ready
Optimized for paper structures that need reliable sealing, machinability, and added functionality from the same platform.
Replace the PE layer without losing seal performance
This heat-seal family opens the door to paper formats and hybrid constructions where the coating does more than one job: it seals, protects, and helps simplify the structure.
Allows the polyethylene layer to be replaced in paper structures.
Enables all-paper designs that are easier to repulp and recycle.
Can reach seal strengths up to 800 g/in with fiber tear, depending on the paper.
Available in low- and medium-temperature sealing windows.
Some formulations support direct food contact, depending on regulation and target market.
Can add integrated functions such as OGR, moisture control, and water resistance.
Can be paired with oxygen barriers to solve complete structures.
Today it is primarily optimized for paper-to-paper seals; asymmetric configurations are still evolving.
Seal initiation map
Visual reference showing where paper heat-seal families sit versus conventional sealing options.
Low temperature
Built for early seal initiation and lower thermal load on paper.
Medium temperature
Expands the process window when more robustness or final resistance is needed.
Integrated function
The same family can add grease barrier, moisture management, and water resistance.
Conceptual representation. The real window depends on substrate, dry coat weight, drying, jaw pressure, and seal geometry.
Seal faster with less temperature and consistent strength
Reference curves show how seal strength increases as temperature and dry coat weight rise on kraft paper.
Seal strength vs. temperature
Reference curves on kraft substrate for different dry coat weights.
Illustrative curves based on reference data. Final performance must be validated on your paper, seal pattern, and converting line.
Early start
The low-temperature curve helps initiate the seal earlier while protecting inks, fibers, and heat-sensitive contents.
Fiber tear performance
With the right paper and application, seal integrity can climb into the fiber-tear range.
More than a seal
The layer can work as a functional heat seal with added MVTR, OGR, and water-resistance contribution.
How to integrate heat sealing into paper structures
Heat seal can work on its own or inside multi-layer architectures that also target barrier, surface resistance, and recyclability.
Medium barrier paper
Balances sealability, moisture control, and recyclability for paper pouches and sachets.
Ultra high barrier paper
Adds primer and metallization for products that demand higher oxygen and moisture protection.
Grease-resistant paper
Combines grease resistance, printability, and inner sealing for convenience formats.
These structures are illustrative. The final stack depends on substrate, barrier target, application method, and recycling objective.
Looking to migrate from PE laminate to a sealable paper structure?
We define the layer architecture, coat weight, drying, and sealing window with your team so the transition is technically viable.
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