09
2026-01
How do I install and maintain Teflon balls in mechanical systems?
A guide on installing and maintaining Teflon balls in mechanical systems for optimal performance and longevity.
ISO 9001 Certified PTFE Manufacturer – Kaxite
Since 2004, we have been supplying virgin & filled PTFE sheets, rods, tubes, gaskets, and custom machined seals to 100+ countries. Direct factory pricing, 15-day lead time for standard items.
Frequently Asked Questions About PTFE Manufacturing
Can Kaxite produce PTFE parts based on my drawings?
Yes, we specialize in custom PTFE machining. Send your 2D/3D drawing and we will provide a quotation within 24 hours.
What certifications do your products hold?
Our standard PTFE products are ISO 9001:2025 certified. Upon request, we can provide FDA, RoHS, REACH, and USP Class VI compliance documents.
Do you offer free samples?
Yes, we offer free samples of standard PTFE sheets, rods, and tubes. Custom sample fees may apply, but they are refundable on bulk orders.
What is the maximum size of PTFE sheet you can produce?
Our molded PTFE sheets can reach up to 2000mm x 2000mm. Skived sheets are available up to 1500mm wide.
How do I request a quote for a custom PTFE part?
Simply fill out the inquiry form on this page or email us directly at [email protected] with your specifications.
About Ningbo Kaxite Sealing Materials Co., Ltd.
Ningbo Kaxite Sealing Materials Co., Ltd.
Kaxite is a specialized PTFE manufacturer established in 2004, located in Ningbo, China. We produce virgin PTFE, glass/ carbon/ bronze filled PTFE, expanded PTFE (ePTFE), FEP, and PFA in forms of sheets, rods, tubes, gaskets, films, and custom machined seals. Our materials meet ISO 9001, FDA, RoHS, and REACH standards.
With 20+ years of formulation experience, we serve aerospace, chemical processing, semiconductor, food & beverage, and automotive industries. 80% of our production is exported to Europe, North America, and Southeast Asia.
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Expanded PTFE
Microporous ePTFE sheets and tapes offering excellent compressibility, breathability, and chemical resistance. Ideal for gaskets and filtration.
Featured PTFE & Engineering Plastics Products
Explore Kaxite's premium PTFE, FEP, and PFA sealing products designed for demanding environments. From high-temperature gaskets to chemical-resistant seals, each solution is precision-engineered for industries like aerospace, automotive, and pharmaceuticals.
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Address
No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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E-mail
Get a Quick Quote – Custom PTFE Parts in 3 Days
Need a custom PTFE part? Provide your dimensions, quantity, and application – we’ll reply within 4 hours with a drawing and quote.
News & Technical Insights
Stay informed with Kaxite's latest updates and expert insights. Our blog offers technical articles, application guides, and industry trends.
08
2026-01
Can PTFE sealing tape be used on plastic threads?
PTFE sealing tape is suitable for plastic threads to enhance sealing and prevent leaks with proper application.
07
2026-01
What are the Maintenance and Cleaning Requirements for Expanded PTFE Sheets?
This article explains the essential maintenance and cleaning procedures for expanded PTFE sheets, detailing best practices to preserve their performance and longevity.
07
2026-08
What chemicals are compatible with PTFE gaskets?
PTFE gaskets exhibit exceptional chemical resistance, compatible with nearly all acids, bases, solvents, and industrial chemicals, excluding only molten alkali metals and certain fluorinating agents under extreme conditions.
30
2026-07
Does PTFE Teflon film have a shelf life?
PTFE Teflon film typically has an indefinite shelf life when kept in a cool, dry environment away from direct sunlight and contaminants. Its inherent chemical stability prevents degradation over time, though physical damage from improper handling or storage can affect performance.
22
2026-07
Which fillers are best for chemical resistance in PTFE?
Different fillers can significantly affect the chemical resistance of PTFE compounds. This article explores how various filler materials perform in aggressive chemical environments, helping you choose the best option for your application.
14
2026-07
What speeds and feeds should be used for machining PTFE?
Discover the recommended cutting speeds and feed rates for machining PTFE, helping you achieve clean, accurate parts without melting or deforming the material.
06
2026-07
What is PTFE packing used for?
PTFE packing is widely used in valves, pumps, and other rotary or reciprocating equipment to provide a durable, leak-proof seal that resists aggressive chemicals, high temperatures, and friction.
26
2026-06
What sizes do PTFE O-rings come in?
PTFE O-rings are manufactured in an extensive variety of sizes, encompassing standard AS568 inch-series dash numbers, widely used metric dimensions, and fully custom configurations to meet specific sealing requirements, with common cross-sections ranging from approximately 1 mm to over 10 mm and inner diameters available from a few millimeters up to several hundred millimeters.
18
2026-06
What is the density of a PTFE ball?
A PTFE ball typically has a density around 2.2 g/cm³, though the exact value can vary slightly based on the specific grade and manufacturing process of the polytetrafluoroethylene.
17
2026-06
Why does PTFE tape sometimes leak?
PTFE tape may leak if applied incorrectly, such as wrapping against the thread direction, using too little or too much tape, or failing to cover all the threads properly. Other causes include using the wrong tape grade for the pipe material or fluid type, and damaged or deteriorated tape.
16
2026-06
Where to buy expanded PTFE sheet?
Searching for a reliable source of expanded PTFE sheets? This guide covers key material properties, typical applications, and trusted suppliers to help you find the right product for your needs.