Our custom PCTFE gasket ring is a high-performance plastic seal engineered for demanding chemical processing, cryogenic valve, semiconductor, and aerospace applications. Manufactured from premium PCTFE (Polychlorotrifluoroethylene) —also known as Kel-F®—this fluoropolymer sealing solution delivers exceptional dimensional stability, chemical resistance, and reliable performance across an extreme temperature range from -200°C to +150°C . Whether you are an industrial valve manufacturer, oil and gas supplier, or wholesale sealing distributor, this PCTFE gasket offers the strength and reliability your critical applications require.
PCTFE is uniquely capable of maintaining its physical properties at exceptionally low operating temperatures, making it an ideal sealing material for LNG storage, cryogenic fluids, liquid oxygen, and liquid nitrogen applications . Unlike many other polymers, this cryogenic gasket remains robust and flexible even at -200°C.
With the lowest coefficient of thermal expansion among unfilled fluoropolymers and near-zero moisture absorption (<0.01%), our PCTFE ring offers outstanding dimensional stability . Its extremely low gas permeation rate makes it the premier choice for high vacuum systems and ultra-pure chemical handling .
This PCTFE seal gasket resists a broad spectrum of aggressive chemicals, including concentrated acids, alkalis, strong oxidizers, and halogens. It outlasts FKM, EPDM, and even many PTFE grades in harsh chemical environments .
Our plastic gasket offers higher compressive strength and hardness than standard PTFE, ensuring it resists deformation under high-pressure flange assemblies . This heavy duty sealing ring maintains its integrity under cyclical loads.
We offer customization for any non-standard size, shape, or specification. Our CNC machining service produces gaskets from rods, sheets, or tubes strictly according to customer drawings .
Cryogenic valve seats and seals for LNG, liquid oxygen, nitrogen
Chemical processing: Gaskets for glass-lined reactors, piping systems
Semiconductor manufacturing: Ultra-high vacuum seals, chemical handling
Aerospace: Fuel systems, hydraulic components
Oil and gas: High-pressure valve seats, pump parts
Pharmaceutical: Sterile processing equipment gaskets
Extreme Temperature Resistance — Maintains integrity from -200°C to +150°C, ideal for cryogenic and high-heat conditions
Superior Dimensional Stability — Near-zero moisture absorption and low thermal expansion ensure precise sealing
Unmatched Chemical Resistance — Outperforms conventional elastomers and many PTFE grades in harsh media
High Mechanical Strength — Resists deformation under high pressure and cyclical loading
Full Customization — OEM service with CNC machining to your exact drawings
Proven Manufacturer — Over 25 years of experience in fluoropolymer processing
Q: What is the minimum order quantity (MOQ)?
A: The MOQ is flexible, with options starting from 1,000 pieces for standard sizes . Custom orders can be discussed.
Q: What are the lead times?
A: Small batch orders require approximately 15 days. Large batch orders require 30-40 days .
Q: Do you offer OEM customization?
A: Yes, we support OEM customization for any non-standard size, shape, or specification, produced via CNC machining .
Q: Is PCTFE suitable for cryogenic applications?
A: Yes, PCTFE is the premier material for cryogenic sealing, maintaining its properties down to -200°C .
Q: Can I get a sample?
A: Yes, samples are available upon request. Please contact our sales team.
Contact our sales team today to request a sample, place a bulk order, or discuss your customization requirements. We offer competitive wholesale pricing, strict quality control, and reliable global delivery.
Testimonials
I come from Jakarta, Indonesia. Our company has been very successful in selling toy fabrics locally. In 2018, I want to develop a new market for furniture fabrics and furniture accessories. I found Wejoy Trade at that time, and they could provide all the products I wanted, which brought me great convenience. Without the hassle of procurement, all I need to do is sell the goods. So, I quickly became one of the top furniture and fabric retailers in Jakarta.
Vengo de una fábrica de muebles en Tegucigalpa, Honduras, donde producimos muebles que abastecen a Sudamérica y a Estados Unidos. Antes tenía que coordinarme con más de una docena de proveedores para adquirir las materias primas que necesitábamos, y el proceso de compra y transporte resultaba complicado y muy costoso. Desde 2022, al comenzar nuestra cooperación con Wejoy Trade, ellos han podido proveer todo lo que necesitamos, resolviendo la mayoría de mis problemas y ayudándonos a ahorrar tiempo y costos. Siguiendo las recomendaciones de Wejoy, incorporamos nuevos equipos provenientes de China y adquirimos muchos materiales con diseños innovadores. Los productos fabricados con estos materiales han sido muy bien recibidos por nuestros clientes finales. Estoy profundamente agradecido con los socios de Wejoy.
I come from West Yorkshire, England. We have been collaborating with Wejoy Trade since 2013, when we were a newly established small company. Through our cooperation and efforts, Wejoy Trade has also provided us with financial support, and we have grown into the largest supplier in the local area. The cooperation and friendship over these years are the most precious.
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