Expanded PTFE Joint Sealant Tape
Model:KXT 1810
Expanded PTFE Joint Sealant Tape is an inorganic sealant for static applications made of 100% PTFE.A unique process converts PTFE to a micro-porous fibrous structure, resulting a sealant with an unsurpassed combination of mechanical and chemical properties. It is supplied with a self-adhesive strip for easy fitting.
Expanded PTFE Joint Sealant Tape – KXT 1810
Kaxite Sealing, a leading China expanded PTFE joint sealant tape manufacturer, introduces the KXT 1810 Expanded PTFE Joint Sealant Tape – a 100% pure expanded PTFE gasket material with a pressure-sensitive adhesive backing for quick, reliable sealing of static flanged joints. Manufactured through a proprietary expansion process that transforms PTFE into a micro‑porous, fibrous structure, this tape delivers an unmatched combination of chemical resistance, conformability, and mechanical strength. It is the ideal solution for sealing irregular, damaged, or misaligned flange faces, as well as glass‑lined, plastic, and enameled equipment.
Why choose KXT 1810? The self‑adhesive strip ensures effortless installation – simply press the tape onto the sealing surface, cross the ends, and tighten the flange. No cutting, no measuring, no waste. It seals against virtually all common chemicals (pH 0‑14), withstands temperatures from –268 °C to +260 °C, and handles pressures up to 100 bar. Its soft, conformable structure fills surface irregularities, compensating for flange out‑of‑parallelism and providing a tight, leak‑free seal even on rough or pitted surfaces. Compliant with FDA 21 CFR 177.1550, it is safe for food, pharmaceutical, and potable water services.
As a trusted expanded PTFE tape supplier in China, Kaxite offers KXT 1810 in thicknesses from 0.5 mm to 10 mm and widths from 3 mm to 100 mm, in standard roll lengths of 3–30 metres. Whether you need bulk tape for maintenance stock or custom‑cut lengths for project‑specific flanges, we deliver consistent quality with full material traceability. Request a free sample or get a wholesale quote today.
Temperature Range-268°C to +260°C
Max Pressure100 bar
Density0.7 – 0.8 g/cm³
pH Range0 – 14
Thickness0.5 – 10 mm
Width3 – 100 mm
Why KXT 1810 Expanded PTFE Joint Sealant Tape?
- ✅ Universal Chemical Resistance – pH 0‑14, resists acids, alkalis, solvents, and hydrocarbons
- ✅ Extreme Temperature Tolerance – –268 °C to +260 °C, ideal for cryogenic and high‑heat services
- ✅ Self‑Adhesive Backing – Quick peel‑and‑stick application, no messy adhesives
- ✅ Conforms to Irregular Surfaces – Seals damaged, out‑of‑parallel, or rough flanges
- ✅ FDA Compliant – 21 CFR 177.1550, safe for food and pharmaceutical contact
- ✅ Unlimited Shelf Life – No curing, no aging, always ready to use
ISO 9001:2015 FDA 21 CFR 177.1550 REACH & RoHS Compliant 100% Pure PTFE Unlimited Shelf Life
Key Advantages of KXT 1810 Expanded PTFE Tape
Seals Imperfect Flange Faces – The soft, conformable tape fills scratches, pits, and surface irregularities, ensuring a tight seal without the need for expensive flange machining.
Quick & Easy Installation – The pressure‑sensitive adhesive holds the tape in place during assembly, reducing installation time by up to 80% compared to traditional cut gaskets.
Zero Waste – Cut to Length – Use only what you need; no material waste, ideal for odd‑shaped or non‑standard flanges.
Exceptional Chemical Resistance – Unaffected by virtually all common chemicals (pH 0‑14), including acids, alkalis, solvents, refrigerants, and oils.
Wide Temperature Range – Maintains sealing integrity from cryogenic –268 °C up to +260 °C, suitable for steam, hot water, and cryogenic services.
FDA & Food‑Grade Compliance – Meets FDA 21 CFR 177.1550, making it safe for use in food processing, pharmaceutical, and potable water applications.
Material Composition & Available Formats
Base Material
- 100% Pure PTFE (expanded micro‑porous structure)
- Self‑adhesive acrylic pressure‑sensitive backing
- Density: 0.7 – 0.8 g/cm³ (ASTM D792)
- Colour: White (natural PTFE)
Available Dimensions
- Thickness: 0.5 – 10 mm (0.020″ – 0.394″)
- Width: 3 – 100 mm (0.118″ – 3.94″)
- Length: 3, 6, 10, 20, 25, 30 metres (custom on request)
- Standard rolls – other sizes available
Additional options: Non‑adhesive versions, custom slit widths, and printed identification stripes available for volume orders. Contact us for specific requirements.
Technical Specifications (Typical Values)
| Property | Value / Range | Test Standard |
|---|---|---|
| Material | 100% Expanded PTFE | — |
| Temperature (Continuous) | -268°C to +260°C | Internal |
| Max Pressure (Static) | 100 bar | Internal |
| Density | 0.7 – 0.8 g/cm³ | ASTM D792 |
| pH Range | 0 – 14 (except strong oxidizers) | — |
| Thickness | 0.5 – 10 mm | — |
| Width | 3 – 100 mm | — |
| Standard Length | 3 – 30 m (custom) | — |
| FDA Compliance | 21 CFR 177.1550 | — |
| Shelf Life | Unlimited (indoor storage) | — |
* Values are typical. Variations may occur based on thickness and density. Request full data sheet
KXT 1810 Expanded PTFE Tape vs Conventional Cut Gaskets – Comparison
| Feature | KXT 1810 Tape | Conventional Cut Gasket |
|---|---|---|
| Installation Time | Minutes – peel, stick, cross | Hours – measuring, cutting, centering |
| Waste | Zero – cut only what you need | High – off‑cuts often wasted |
| Irregular Surfaces | Excellent conformability | Poor – requires flat, smooth flanges |
| Chemical Resistance | pH 0‑14 (except strong oxidizers) | Varies by material |
| Shelf Life | Unlimited | Limited (aging, hardening) |
| FDA Compliant | Yes | Only certain grades |
* KXT 1810 eliminates measuring errors, reduces downtime, and provides a reliable seal even on damaged flanges – ideal for maintenance teams and plant turnarounds.
Typical Applications & Industries
Glass‑Lined & Plastic Flanges Ideal for fragile flanges that cannot tolerate high bolt loads – the soft tape conforms without damaging the surface.
Rough or Damaged Flanges Seals scratches, pits, and out‑of‑parallel faces without the need for costly resurfacing.
Chemical & Petrochemical Sealing of pipe flanges, reactors, and storage tanks handling aggressive acids, alkalis, and solvents.
Also explore our PTFE gasket sheets for larger flanges.
Food & Pharmaceutical FDA‑compliant sealing for mixing vessels, pasteurizers, and CIP systems.
Heat Exchangers & Boilers Tube sheet and head gaskets where thermal cycling and chemical attack are concerns.
Cryogenic & Refrigeration Seals liquefied gas lines and cold boxes – retains flexibility at –268 °C.
Why Choose Kaxite for Expanded PTFE Joint Sealant Tape?
Proprietary Expansion Technology – Our unique process creates a micro‑porous structure that offers superior conformability and sealing efficiency compared to standard skived PTFE tapes.
ISO 9001:2015 & FDA Certified – Our manufacturing facility is fully certified, ensuring consistent quality and traceability from resin to finished tape.
In‑House Slitting & Custom Packing – We slit and package tape to your exact width and length requirements, reducing your handling and waste.
Factory‑Direct Pricing – As a China gasket tape manufacturer, we offer competitive wholesale prices without compromising quality.
Rapid Response & Technical Support – Our engineers provide installation guidance, torque recommendations, and material selection advice within 2 business hours.
Global Logistics – We ship to over 40 countries with reliable freight partners, ensuring your tape arrives on time for your maintenance schedule.
Proven Performance: Kaxite KXT 1810 is specified by leading chemical and pharmaceutical companies for its reliability in critical sealing applications. Its unlimited shelf life and ease of use make it a maintenance team favourite.
Quality Assurance & Regulatory Compliance
Kaxite Sealing operates an ISO 9001:2015 certified facility. Our expanded PTFE tape is manufactured under strict process controls – from PTFE resin selection, expansion, and slitting to final adhesive application. Each lot is tested for density, tensile strength, and adhesive peel strength to ensure consistent performance. We provide material test certificates with every shipment, ensuring full traceability from resin to finished tape.
- ISO 9001:2015 Certified
- FDA 21 CFR 177.1550
- REACH & RoHS Compliant
- 100% PTFE – no fillers or additives
- Tested to ASTM Standards
Trusted by engineers worldwide – our expanded PTFE tape is used in over 40 countries, backed by responsive technical support and fast global delivery.
Custom Slitting & OEM Services – Free Sample Available
As a professional expanded PTFE tape manufacturer in China, we offer complete customisation to meet your exact specifications. Request a free sample or get a bulk quote today:
- Custom widths from 3 mm to 100 mm
- Custom thicknesses (0.5 – 10 mm)
- Custom roll lengths (3 – 100 m)
- Non‑adhesive versions available
- Private label packaging for distributors
- Just‑in‑time delivery and inventory management
Get a free sample or request a tailored bulk quote – our team responds within 24 hours with competitive China factory pricing and lead‑time estimates.
Frequently Asked Questions About Expanded PTFE Joint Sealant Tape
- Q: What is the difference between expanded PTFE tape and conventional PTFE tape?
- A: Expanded PTFE is produced through a controlled expansion process that creates a micro‑porous, fibrous structure. This gives the tape superior conformability, allowing it to fill surface irregularities and seal imperfect flanges. Conventional PTFE tape (skived) is dense, rigid, and requires perfectly flat, smooth flange faces. Expanded PTFE also offers better creep resistance and lower bolt torque relaxation.
- Q: What is the maximum pressure and temperature for this tape?
- A: KXT 1810 is rated for continuous service from –268 °C to +260 °C and static pressures up to 100 bar. The actual pressure limit depends on flange design, bolt load, and media. For higher pressures, we recommend consulting our technical team.
- Q: Is this tape FDA approved for food contact?
- A: Yes. KXT 1810 meets FDA 21 CFR 177.1550 requirements for direct food contact. It is also compliant with EU food contact regulations. A Certificate of Compliance is available upon request.
- Q: How do I install the tape on a flange?
- A: Clean the flange face, peel the release liner, and press the adhesive side onto the sealing surface. Apply the tape in one continuous length, overlapping the two ends by about 10‑20 mm (do not butt‑join). Tighten the flange bolts gradually to the recommended torque. The soft tape will compress and form a tight seal.
- Q: What widths and thicknesses are most commonly used?
- A: For standard ANSI flanges, widths of 5‑25 mm and thicknesses of 2‑5 mm are most common. We recommend selecting a tape width slightly narrower than the flange sealing face. Contact our team for sizing recommendations for your specific flanges.
- Q: How long is the shelf life of this tape?
- A: When stored in a cool, dry place away from direct sunlight and ozone sources, KXT 1810 has an unlimited shelf life. Unlike rubber or elastomeric gaskets, PTFE does not age, harden, or degrade over time.
Partner with Kaxite Sealing – your trusted expanded PTFE joint sealant tape manufacturer and supplier in China. With decades of PTFE processing expertise, advanced slitting capabilities, and an unwavering commitment to quality, we deliver sealing solutions that perform reliably in the most demanding chemical, pharmaceutical, and food processing applications. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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