Kel-F
Rigid, transparent, gas-impermeable fluoropolymer; suited for cryogenics and vacuum sealing.
PCTFE (Polychlorotrifluoroethylene) is a high-performance fluoropolymer known for its excellent moisture barrier, chemical resistance, and dimensional stability. With low gas permeability and a wide operating temperature range, it’s ideal for aerospace, cryogenics, and pharmaceutical packaging applications requiring long-term reliability, minimal moisture ingress, and resistance to harsh environmental conditions.
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Capabilities
- Source and/or compound a variety of grades and formulations in different shapes.
- Fully equipped machine shop with 3,4, and 5-axis capabilities to create complex machined components.
- Dedicated lab to test key properties and dimensions.
Key Properties
- Suitable for Cryogenic Applications
- Excellent Resistance to Cold Flow
- Dimensional Stability
- Extremely Low Gas Permeability
- Rigid Polymer
- Extremely Low Moisture Absorption
- Good Transparency
- Suitable for High Vacuum Applications
Limitations
- Brittle at room temperature.
- limited elongation.
- low impact resistance.
- expensive.
- low availability.
Applications
- Cryogenic Valve Seats
- High-pressure Gas Seats and Seals
- Semiconductor Process Components
- Electrical Components
