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Expanded PTFE Joint Sealant Tape
Upgrade your sealing solutions with Kaxite Sealing's Expanded PTFE Joint Sealant Tape. This high-performance tape ensures leak-free connections in plumbing and industrial applications, offering superior durability, chemical resistance, and easy application. Ideal for professionals and DIY enthusiasts, it provides reliable performance under extreme conditions. Experience peace of mind and enhanced safety—choose the trusted choice for lasting seals.
Expanded PTFE Joint Sealant Tape – Universal Gasketing for Any Flange
Kaxite Sealing offers premium expanded PTFE joint sealant tape – a 100% pure PTFE gasket material with a self-adhesive backing for quick, reliable sealing on virtually any flange surface. Engineered to conform to rough, pitted, scratched, or irregular surfaces, this tape eliminates the need for precision-cut gaskets and provides a leak-tight seal across a wide range of chemicals, temperatures, and pressures.
What sets Kaxite apart? Our expanded PTFE tape is manufactured through a proprietary expansion process that creates a micro-porous structure, delivering exceptional compressibility and recovery while maintaining the full chemical inertness of virgin PTFE. Unlike skived or extruded tapes, our expanded formulation offers superior conformability to damaged flanges and uneven surfaces – a critical advantage for maintenance teams dealing with aged or worn equipment.
With its pressure-sensitive adhesive backing, this tape installs in minutes – simply peel, stick, and cross the ends to form a complete gasket. Ideal for enamel, glass-lined, and rough sealing surfaces where traditional gaskets fail, Kaxite expanded PTFE joint sealant tape delivers reliable, long-lasting performance in chemical processing, pharmaceutical, food & beverage, and water treatment applications.
Temp. Range–240 to +260 °C
Max PressureUp to 87 bar
Chemical ResistancepH 0–14
PTFE Purity100% Pure
Adhesive BackingSelf-Adhesive
Shelf LifeUnlimited
Why Choose Kaxite Expanded PTFE Joint Sealant Tape?
Form-In-Place Sealing – Conforms perfectly to rough, pitted, scratched, or damaged flange surfaces – no precision cutting required
100% Pure Expanded PTFE – No fillers or binders – retains the full chemical inertness of virgin PTFE (pH 0–14)
Self-Adhesive Backing – Peel-and-stick application on horizontal or vertical surfaces – quick and easy installation
Universal Fit – Works on round, oval, rectangular, and complex-shaped flanges – one tape for all applications
Resists Creep & Cold Flow – Expanded microstructure provides superior dimensional stability under load – maintains seal integrity over time
Unlimited Shelf Life – No age deterioration – stock it for years without performance loss
Technical Specifications
| Property | Value / Range | Test Standard |
|---|---|---|
| Material | 100% Expanded PTFE (no fillers) | — |
| Temperature Range | –240 °C to +260 °C (continuous) | Internal |
| Max Pressure (depending on flange) | Up to 87 bar (class 600) | Internal |
| pH Range | 0 – 14 (universal chemical resistance) | — |
| Density | 0.7 – 0.9 g/cm³ | ISO 1183 |
| Compressibility | ≥ 60 % | Internal |
| Recovery (after compression) | ≥ 15 % | Internal |
| Creep Relaxation | ≤ 25 % (ASTM F38) | ASTM F38 |
| Width Options | 5 – 50 mm (custom) | — |
| Thickness Options | 1.5 – 10.0 mm (custom) | — |
* Values are typical for standard grade. Custom sizes and thicknesses available upon request.
Typical Applications & Industries
Chemical Processing Flange sealing for pipes, vessels, and reactors handling aggressive chemicals – pH 0–14 resistance. For high-temperature applications, also explore our Graphite Sheets.
Pharmaceutical & Biotech Sanitary flange seals, clean-room equipment – 100% pure PTFE eliminates contamination risks. FDA-compliant grades available.
Food & Beverage FDA-compliant sealing for processing equipment, piping, and storage tanks – resists CIP cleaning agents.
Water & Wastewater Treatment Sealing for pumps, valves, and pipe flanges in municipal and industrial water systems – resistant to chlorine and ozone.
Enamel & Glass-Lined Equipment Ideal for fragile glass-lined flanges where bolt load must be minimised – conforms without over-stressing the surface.
Maintenance & Repair Quick field repairs on damaged or irregular flanges – no special tools or precision cutting required.
Simple 3-Step Installation
1 Peel Remove the protective backing to expose the self-adhesive layer
2 Stick Apply around the flange surface – on horizontal or vertical faces
3 Cross & Tighten Cross the tape ends, bolt up, and the gasket forms in-place
Quality Assurance & Industry Compliance
Kaxite Sealing operates an ISO 9001:2015 certified manufacturing facility. Our expanded PTFE joint sealant tape is produced under strict process controls – from PTFE resin selection to expansion, heat treatment, and adhesive application. Every batch undergoes dimensional inspection, density verification, and compression/recovery testing to ensure consistent quality. We provide material test certificates with every shipment, ensuring full traceability.
- ISO 9001:2015 Certified
- FDA 21 CFR 177.1550 (on request)
- REACH & RoHS Compliant
- 100% Material Traceability
- Tested to ASTM F38 (Creep Relaxation)
Trusted by maintenance engineers worldwide – our expanded PTFE tape is used in projects across 40+ countries, backed by responsive technical support and fast global delivery.
Customisation & Ordering Information
We offer flexible customisation to meet your specific sealing requirements:
- Custom tape width (5 – 50 mm)
- Custom tape thickness (1.5 – 10.0 mm)
- Custom roll lengths (2m – 50m)
- Private-label packaging and branding
- FDA-compliant grades (on request)
- Technical support and application guidance
Request a quote with your required dimensions and quantity – our team responds within 24 hours with competitive pricing and lead-time estimates. Free samples are available for qualification.
Frequently Asked Questions
- Q: What is expanded PTFE tape and how is it different from ordinary PTFE tape?
- A: Expanded PTFE tape is manufactured through a proprietary expansion process that creates a micro-porous structure. This gives it superior compressibility, conformability, and recovery compared to ordinary skived or extruded PTFE tape. It can seal rough, pitted, or damaged flanges where standard tapes fail, and its self-adhesive backing makes installation quick and easy.
- Q: What temperature range can this tape handle?
- A: Kaxite expanded PTFE joint sealant tape operates continuously from –240 °C to +260 °C. For cryogenic applications or high-temperature services, our technical team can advise on suitability for your specific conditions.
- Q: Is this tape FDA-compliant for food contact?
- A: Yes. We offer FDA 21 CFR 177.1550 compliant grades specifically for food and beverage applications. Please specify the FDA requirement when ordering and we will provide the appropriate certification documentation.
- Q: Can this tape be used on glass-lined or enamel flanges?
- A: Absolutely. Expanded PTFE tape is the preferred sealing solution for glass-lined and enamel equipment because it conforms to the surface without requiring high bolt loads that could damage the fragile lining. Its compressibility ensures a reliable seal with minimal stress on the flange.
- Q: What is the shelf life of this product?
- A: Expanded PTFE joint sealant tape has an unlimited shelf life when stored under normal conditions (dry, away from direct sunlight). The material does not age or deteriorate over time – you can stock it for years without performance loss.
- Q: Do you provide samples before bulk orders?
- A: Yes. We supply free material samples (shipping cost applies) for you to evaluate conformability, adhesion strength, and sealing performance on your specific flange surfaces. Sample orders are processed within 3–5 working days.
Partner with Kaxite Sealing – your trusted manufacturer of expanded PTFE joint sealant tape. With deep material expertise, advanced expansion technology, and a commitment to quality, we deliver sealing solutions that simplify maintenance and ensure leak-tight performance on every flange. Request a free sample or get a tailored quote today – our engineers respond within 24 hours.
Hot Tags: Expanded PTFE Tape, PTFE Joint Sealant, High-Temperature Sealing Tape
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No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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