Tie-Layer

PA-Bond Tie-Layer are specially designed as adhesive intermediate layers for multilayer films, providing strong bonding between polymer layers that are naturally incompatible with each other.

 

During co-extrusion, PA-Bond Tie-Layer acts as a functional bridge between polyolefin layers such as PE and PP and polar barrier polymers such as PA and EVOH, helping maintain excellent interlayer adhesion and prevent delamination.

 

PA-Bond Tie-Layer Adhesives provide:
 Strong adhesion between incompatible film layers
 Excellent resistance to delamination
 Good transparency and film appearance
 Stable adhesion at low tie-layer thickness
 Good processability in blown and cast film co-extrusion
 Suitable grades for different polymer combinations and multilayer structures

 

Typical structures include:
 PE / Tie-Layer / PA
 PE / Tie-Layer / EVOH / Tie-Layer / PE
 PP / Tie-Layer / PA
 PP / Tie-Layer / EVOH / Tie-Layer / PP

 

Typical applications include:
 Multilayer barrier films
 Food packaging films
 Vacuum and thermoforming films
 Meat and cheese packaging
 Flexible packaging
 Other customized multilayer film structures

 

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Tie-Layer