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
- Free samples, free TDS and technical support with a 24-hour reply
What is PCTFE?
PCTFE (polychlorotrifluoroethylene — also known as Kel-F or Neoflon, CAS 9002-83-9) is a melt-processable fluoropolymer polymerized from chlorotrifluoroethylene with ultra-low moisture permeability and excellent dimensional stability. As a transparent barrier polymer, PCTFE is available as film, resin, sheet and custom shapes, meeting FDA, ISO and RoHS standards in many grades.
Peflon offers over a decade of PCTFE manufacturing experience with GMP-clean production lines in China. Custom formulation, strict QA testing, full data-sheet support and fast global logistics — for pharmaceutical, cryogenic or semiconductor use, Peflon PCTFE ensures stable barrier, mechanical reliability and supply security.
PCTFE Properties
Twelve typical physical, mechanical and electrical properties — measured per ASTM and DSC standards.
| 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 |
PCTFE Raw Material Forms
High-purity PCTFE resin pellets and fine powder grades — each form engineered for injection molding, extrusion or rotational molding.
PCTFE Resin Pellets
PF-300 and PF-400 grades — designed for injection molding and extrusion — cryogenic valve seats, seals and thin barrier films.
PCTFE Powder
PF-701/702/703 grades — fine powder, designed for rotational molding and custom processing routes.
All Grades of PCTFE
Five grades cover pellet and powder forms — resin pellets for molding/extrusion, powder grades differentiated by melt flow rate for film/calendering.
| Grade (TDS) | Form | Tensile Strength | Elongation | MFR | Typical Use |
|---|---|---|---|---|---|
| PF-300 (PDF) | Pellet | 32–37 MPa | 50–200% | — | Molding rods, tubes, sheets |
| PF-400 (PDF) | Pellet | 34–39 MPa | 100–250% | — | Molding rods, tubes, sheets, automatic extrusion |
| PF-701 (PDF) | Powder | 35–85 MPa | 40–150% | <1 g/10min | Film, sheet, low-MFR extrusion |
| PF-702 (PDF, series datasheet) | Powder | 35–85 MPa | 40–150% | 4–8 g/10min | Mid-MFR film and coating |
| PF-703 (PDF) | Powder | 50–85 MPa | 100–150% | 8–12 g/10min | Extrusion and calendering film |
Common Applications of PCTFE
Medical device manufacturers, valve/seal fabricators and semiconductor equipment builders are Peflon’s strongest PCTFE buyer segments — extreme reliability, low permeability and thermal stability across every application below.
Medical Device & Pharmaceutical Components
GMP-clean PCTFE for blister-pack barrier film, drug-testing equipment and medical device parts — the segment where Peflon PCTFE ranks best.
Washers, Bushings & Valve Seats
Precision-machined PCTFE washers, bushings and valve seats for cryogenic and oxygen-service valves — no cold flow under sustained clamping load.
Semiconductor & Cryogenic Equipment
Low-outgassing, dimensionally stable PCTFE parts for semiconductor wet-process tooling and cryogenic fluid systems down to −200°C.
PCTFE Sheet & Plate
Inspection covers, cold-storage panels and oxygen-compatible parts — stable thickness and shape for fabrication.
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.
How Processors Machine & Mold Peflon PCTFE
Both routes work. Processors 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.
CNC Machining
Processors turn, drill and mill PCTFE rod and sheet into tight-tolerance parts — clean cuts with sharp edges and no cold flow like softer fluoropolymers.
Injection Molding & Extrusion
Processors mold or extrude PCTFE resin pellets (PF-300/PF-400) into rods, tubes and sheets for repeat-order production.
Calendering & Film Extrusion
Processors extrude or calender PCTFE powder grades (PF-701/702/703) into thin barrier film for pharmaceutical packaging.
PCTFE Chemical Resistance
PCTFE resists a broad range of acids, bases and solvents, with one notable exception among fluoropolymers — it is attacked by some chlorinated and fluorinated solvents that PTFE and PFA resist.
| Chemical | Class | Resistance |
|---|---|---|
| Sulfuric acid, hydrochloric acid | Mineral acids | Excellent |
| Sodium hydroxide (dilute) | Base | Good |
| Aliphatic hydrocarbons, alcohols | Organic solvents | Excellent |
| Chlorinated and fluorinated solvents (e.g. Freon, trichloroethylene) | Halogenated solvents | Poor — can cause swelling, unlike PTFE/PFA |
| Oxygen, compressed gases | — | Excellent — low particle shedding under pressure |
This is the one place PCTFE differs meaningfully from PTFE/PFA/FEP: check your solvent exposure against this table before specifying PCTFE in a chlorinated-solvent environment.
Why Choose Peflon PCTFE
PCTFE is chosen for jobs where a barrier failure or a dimensional drift is not an option — cryogenic seals, oxygen systems, drug packaging. Peflon focuses on the specific risks that matter for this material.
GMP-Clean Manufacturing
- Over a decade of PCTFE manufacturing experience with GMP-clean production lines in China
- Meets FDA, ISO and RoHS standards on relevant grades — documentation ready for pharmaceutical qualification
- Consistent WVTR and dimensional stability batch to batch
Machining & Molding Both In-House
- Same manufacturer supplies both resin pellets for molding and rod/sheet stock for machining
- No need to qualify two separate suppliers for prototype (machined) and production (molded) parts
- Guidance on which route fits your part geometry and volume
Custom Sizes & Drawings
- Send your drawing, preferred diameter or thickness for a sample or quote
- Custom PCTFE machining and molding, not just standard stock shapes
- Fast global logistics for cryogenic, semiconductor and pharmaceutical projects
Frequently Asked Questions
What is the difference between PCTFE and PTFE?
| Property | PCTFE | PTFE |
|---|---|---|
| Processing | Melt-processable — inject molded or extruded | Not melt-processable — sintered and machined |
| Clarity | Transparent to translucent | Opaque white |
| Cold flow | Highly resistant — holds tight tolerances | Prone to cold flow under sustained load |
| Moisture barrier (WVTR) | Best-in-class among plastics | Good, but higher than PCTFE |
| Chemical resistance | Excellent — except some chlorinated/fluorinated solvents | Excellent across virtually all chemicals |
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 the same as Kel-F?
Yes — Kel-F is 3M’s original trade name for PCTFE, and Neoflon is Daikin’s. “PCTFE,” “Kel-F” and “Neoflon” all refer to the same polychlorotrifluoroethylene polymer chemistry; Peflon PCTFE is a cost-effective equivalent to both branded grades.
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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High-purity PVDF resin and powder for chemical, semiconductor and coating applications.
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Functional PTFE micropowder additive for coatings, inks, plastics and lubricants.
Technical Support of PCTFE
Selecting and machining PCTFE raises real engineering questions — dimensional stability, permeation, cryogenic behaviour and processing. Our technical library shares practical, hands-on guidance from the Peflon materials team.
What Are Fluoropolymers? What Are Their Importance and Applications
Infographic: Types of Fluoropolymers Raw Material
PTFE VS PFA
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 reply within 24 hours with a quote.