9 layers Co-extrusion PA_PE barrier film for Automotive industry

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Product Description     

GreenPak's PA/PE film (Polyamide/Polyethylene) used in soundproofing and insulation mats serves as a functional barrier and protective layer. Here's a detailed look into its role and properties:

Structure: PA/PE (Nylon/Polyethylene) Film

PA (Polyamide/Nylon):

 * High mechanical strength and abrasion resistance.

 * Good chemical resistance.

 * Excellent barrier to gases (better than PE, though not as good as EVOH).

PE (Polyethylene):

 * Provides flexibility, water resistance, and sealability.

 * Good compatibility with heat lamination and adhesives.

|  Function in Soundproofing & Insulation Mats:

1. Barrier Layer:

• Acts as a moisture barrier, protecting the inner foam or fiber core from water ingress.

• Also serves as a gas and vapor barrier—important in preventing degradation over time.

2. Durability Layer:

• PA offers puncture resistance** and structural integrity—important when the mat is placed under flooring, behind walls, or inside car cabins.

3. Lamination Compatibility:

• Easily laminated with foam (PE foam, PU foam), rubber (EPDM, EVA), or nonwoven fabrics for multi-functional mats.

4. Soundproofing Contribution:

• Though PA/PE itself is not sound-absorbing, it complements mass-loaded or foam-core materials by acting as a reflective and sealing layer, enhancing acoustic insulation performance.

|  Typical Construction in Mats:

Example:

[Non-woven fabric] + [EPDM or PU foam] + [Aluminum foil (optional)] + [PA/PE film]

 Laminating to other material  

 Block odors 

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Specifications    

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 Quality Assurance