PCTFE Material Supplier & Manufacturer
Peflon supplies PCTFE material from manufacturer-controlled production — supporting distributors and plastic processing companies with stable barrier, mechanical reliability and supply security.
- PCTFE supplied directly from manufacturer
- Built for repeat orders, not one-off trials
- Suitable for regulated and sealing applications

What is PCTFE?
PCTFE Properties & Characteristics
| Property | Typical Value | Test Method | Notes |
|---|---|---|---|
| Density | 2.10–2.17 g/cm³ | ASTM D792 | Slightly higher than PTFE |
| Tensile Strength | 40–50 MPa | ASTM D638 | High mechanical rigidity |
| Elongation at Break | 5–15 % | ASTM D638 | Good toughness at low temps |
| Flexural Modulus | 1,000–1,300 MPa | ASTM D790 | Excellent stiffness |
| Melting Point (Tm) | 210–215 °C | DSC | Stable crystalline structure |
| Glass Transition (Tg) | 45 °C | DSC | Ensures rigidity at room temp |
| Service Temperature | −200 °C to +190 °C | — | Shape retained at cryogenic |
| CTE | 5 × 10⁻⁵ /°C | ASTM E831 | Low dimensional change |
| WVTR | 0.04 g·mm/m²·day | ASTM F1249 | Exceptional moisture barrier |
| Dielectric Constant (1 MHz) | 2.1–2.3 | ASTM D150 | Stable insulation |
| Volume Resistivity | 10¹⁶ Ω·cm | ASTM D257 | Excellent electrical insulation |
| Flammability | Self-extinguishing | UL 94 V-0 | High safety index |
Dimensional Stability
Very low thermal expansion — predictable dimensions under rapid temperature change. Ideal for tight-tolerance sealing parts.
Machinability
Clean CNC machining with sharp edges, smooth surfaces and uniform thickness — no cold flow like softer fluoropolymers.
Optical Clarity
Clear or translucent form — used in instruments requiring visual inspection, liquid viewing or sample containment.
Stress-Crack Resistance
Outperforms many plastics — extended service life in oxygen systems and compressed-gas equipment.
PCTFE Raw Material Forms
PCTFE Resin Pellets
Designed for injection molding and extrusion — cryogenic valve seats, seals and thin barrier films.
PCTFE Powder
Fine powder grade — designed for rotational molding and custom processing routes.
Common Applications of PCTFE

Pharmaceutical Packaging & Blister Films
Thin PCTFE film for clear, low-moisture barriers — critical for drug stability and shelf life.

Solar Panels & Cryogenic Parts
Low-temperature toughness — cryogenic valves, pump seals, solar panel films and O-rings.

PCTFE Sheet & Plate
Inspection covers, cold-storage panels and oxygen-compatible parts — stable thickness and shape for fabrication.

PCTFE Rod for Machined Parts
Precision machining — clean turning, drilling and milling without chipping. Valve seats, bushings, cryogenic connectors.

Precision-Machined PCTFE Parts
Complex geometries and prototype runs — semiconductor, aerospace and cryogenic equipment designers.

PCTFE Molded Components
Consistent dimensions and low internal stress — medium-to-high volume OEM orders, fluid control and lab devices.
Frequently Asked Questions
What makes PCTFE different from other fluoropolymers?
PCTFE offers a unique balance of stiffness, clarity and clean handling. PCTFE sheet and PCTFE rod suit parts requiring steady shape and low surface change during long operation cycles — where PTFE would cold-flow.Is PCTFE suitable for direct contact with oxygen or medical gases?
Yes. PCTFE performs well in oxygen systems — it does not shed particles easily and stays stable under pressure. Widely used in oxygen valves, gas regulators and medical testing tools.Can PCTFE be injection-molded or only machined?
Both work. Machine PCTFE rod for tight-tolerance parts, or mold PCTFE pellets for repeat-order simple designs. The right choice depends on part geometry and production volume.How should PCTFE be stored to avoid performance changes?
PCTFE sheets and rods should be kept in clean, dry storage away from heat and sharp tools. The material doesn’t absorb much moisture, but proper storage keeps surfaces scratch-free before machining.Do you provide custom sizes or drawings for PCTFE components?
Yes. Peflon supports custom PCTFE machining and molding — send your drawing, preferred diameter or thickness and we’ll prepare a sample or quote.Related Products of PCTFE

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Get PCTFE Material, Stock Shapes or Machined Parts
Whether you need resin pellets, powder, sheet, rod or custom machined parts — tell us your specification and we’ll quote within 24 hours.
