Cast Nylon Film
Cast Nylon (CPA) film for thermoforming and vacuum packaging, offering toughness, puncture resistance, oxygen barrier, and lamination-ready clarity.
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Deep-draw thermoformability for bottom webs and shaped packs
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Superior puncture/impact resistance; ideal for bone-in and sharp-edge products
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Medium-to-high oxygen & aroma barrier; metallizable or coex with EVOH when needed
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High brilliance and transparency; printable and dimensionally stable in laminates
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Lamination-ready surfaces; bonds well to PE/PP for sealability and retort structures
Cast Nylon Film Description
What Is Cast Nylon Film (CPA)?
Cast nylon film—often abbreviated as CPA—is a non-oriented Polyamide-6 film produced via a cast (quench) process. Unlike biaxially oriented nylon (BOPA), CPA is not stretched in MD/TD, preserving exceptional thermoformability while still delivering strong oxygen/aroma barrier and puncture resistance.
Typical monolayer CPA gauges range from ~19–125 μm, while co-extruded PA-based thermoforming films for bottom webs can reach ~55–350 μm depending on draw depth and barrier targets.
For enhanced sealability and high-temperature performance, CPA is commonly laminated or co-extruded with PE/PP and, when needed, EVOH for elevated barrier.
Why Converters Choose CloudFilm
CloudFilm supplies specification-driven CPA films designed for forming, vacuum, and MAP applications. We focus on flatness, gauge control, and roll geometry to minimize web breaks and maintain registration at high line speeds.
Our films are corona-treated for reliable ink/adhesive anchorage and can be tailored for metallization when ultra-high barrier is required.
Available services include custom gauges/widths, precision slitting, and application-matched slip/COF targets to support downstream forming and sealing.
Structures & Processes That Work
CPA integrates smoothly into PA/PE, PA/EVOH/PE, or PA/PP laminates, enabling vacuum pouches, deep-draw bottom webs, and retortable packs (after line validation).
Printers benefit from clarity and brilliance that elevate shelf appeal, while packers value CPA’s impact and puncture toughness for bone-in meats and sharp-edge products.
If barrier needs escalate, consider metallized CPA or a PA-EVOH-PE coex to hit oxygen ingress targets.
Quality, Compliance & Service
Food-contact grades are available. CloudFilm supports documentation (COA/COC; third-party migration tests on request) and traceable QA from resin selection through casting and slitting.
Share your product, forming depth, sealing layer, and shelf-life goals—we’ll propose data-backed structures, pilot sample rolls, and clear MOQ/lead-time to de-risk your trial-to-scale journey.
Start with Cast Nylon Film to build a pack that protects product quality and brand image.
Get Free Sample of Cast Nylon Film
Ready to reduce leakers and improve deep-draw yields? CloudFilm’s Cast Nylon (CPA) delivers toughness, clarity, and reliable oxygen barrier for thermoforming bottom webs and vacuum pouches.
Tell us your forming depth, gauges, sealing layer (PE/PP), and target OTR—we’ll recommend structures, send sample rolls, and confirm MOQ/lead time with a rapid quotation.
Cast Nylon Film Applications
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Thermoforming Bottom Webs – Deep-draw, tough forming films for MAP and vacuum packs.
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Vacuum Pouches – Laminated PA/PE structures for meats, cheese, and seafood.
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Bone-In & Sharp-Edge Products – Extra puncture resistance preserves seal integrity.
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Retortable Laminates (PA/PP) – For high-temperature sterilization when validated.
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Industrial Protection – Durable barrier film for hardware, chemicals, and tools.
FAQ
No. CPA is typically laminated or co-extruded with PE/PP to achieve heat sealing.
CPA is non-oriented and excels in thermoformability; BOPA is biaxially oriented with higher stiffness and ~30% higher oxygen barrier than cast PA.
Deep-draw bottom webs, vacuum pouches for meats/cheese/seafood, and packs for sharp-edge or bone-in products.
Monolayer CPA is commonly ~19–125 μm; PA-based thermoforming bottom webs can reach ~55–350 μm depending on draw depth.
Yes, within validated laminates such as PA/PP; test on your process to confirm seal and dimensional stability.
Yes. CPA can be metallized; alternatively, PA-EVOH-PE co-extrusion achieves very low OTR while keeping clarity and formability.
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