CellFlex®
The FEP Bag for Cryo Preservation
CellFlex® is a medical-grade FEP bag designed to provide a stable, controlled, and secure environment for both cell culture and cryopreservation in closed systems.
Made from high-purity FEP film, it ensures excellent chemical inertness, transparency, and flexibility, while preventing water loss and maintaining integrity down to -196 °C.
Its optimized gas-exchange properties and cryogenic resistance make it suitable for therapeutic cell culture, cell banking, and long-term storage.
Product Details
Key features
- FEP material compliant
- US DMF #032647
- Manufactured in ISO 7 cleanrooms under cGMP
- Gas permeability CO2 O2
- Freezing temperature down to -196°C
- Complete impermeability to water, preventing evaporation and volume loss
- Closed system ensuring safe and contamination‑controlled cell handling
- Optimal traceability with laser‑marked identification
- Closed by boatport (from 1 to 4 tubes)
- Delivered sterile
- Extractables studies available
- Expertise in particle level management
Applications
- Mammalian and suspension cell culture processes
- Expansion of immune cells, T‑cells, NK cells, CAR‑T workflows
- Research and pre‑clinical development involving sensitive cell lines
- Early‑stage bioproduction and upstream development
- Others
Custom Development
Beyond standard configurations, Technoflex specializes in custom development of IV bags and biopharmaceutical containers, adapting:
- Bag dimensions and volumes
- Ports and components
- Identifications options
- Regulatory documentation
Our dedicated R&D team and sales support work closely with customers to develop tailor-made packaging solutions, from early development to industrial production.
Technical Specifications
FEP
30ml, 70ml, 120ml, 200ml, 300ml, 750ml
1 to 2 tubes with boatport
Terminal Sterilization
Areas of expertise
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