Expanded PTFE Joint Sealant

Engineered for Excellence in Sealing Technology

Ningbo Kaxite Sealing Materials Co., Ltd. is a leading manufacturer and supplier of expanded PTFE joint sealants and gasket materials. With years of expertise in polymer engineering, we deliver high-performance sealing solutions trusted across chemical processing, pharmaceutical, semiconductor, and oil & gas industries.

Our expanded PTFE products are designed to withstand extreme temperatures (-260°C to +260°C), aggressive chemicals, and high pressures—ensuring long-term reliability and safety in critical applications.

Chemically inert & non-toxic
Temperature resistant: -260°C to +260°C
Zero leaching & ultra-pure
Compliant with FDA, USP Class VI

Our Expanded PTFE Product Range

Discover our full line of high-performance expanded PTFE sealing materials—engineered for reliability, durability, and chemical resistance in the most demanding environments.

Expanded PTFE Joint Sealant Tape

Self-adhesive tape for pipe joints and flanges. Ideal for chemical, pharmaceutical, and food processing industries.

Thickness: 0.5mm – 3.0mm
Width: 12mm – 100mm
Temperature: -260°C to +260°C
Chemical resistance: Universal

Expanded PTFE Gasket Tape

High-compression tape for static sealing in flanged connections. Excellent recovery and creep resistance.

Thickness: 1.5mm – 3.0mm
Roll Length: 10m, 20m, 50m
Non-stick surface
Low torque sealing

Expanded PTFE Sheet

Flexible, cut-to-size gasket material for custom flange sealing. Ideal for irregular surfaces.

Thickness: 0.5mm – 5.0mm
Sheet Size: 1m x 1m, 1.5m x 30m
Density: 0.7–0.8 g/cm³
Complies with ASTM F1384

Expanded PTFE Gasket

Pre-cut gaskets for standard and custom flange sizes. Ready to install with no curing time.

Available in ASME, DIN, JIS standards
DN15 to DN1200
Class 150 to 2500
Zero outgassing

Expanded PTFE Gasket Material

Bulk material for die-cutting and custom gasket fabrication. Superior sealing under low bolt load.

Density: 0.65–0.85 g/cm³
Compression: 30–50%
Recovery: >85%
Low permeability

Expanded PTFE Packing

Used in valves, pumps, and rotating equipment. Offers excellent wear resistance and low friction.

Forms: Rope, braid, die-cut
Diameter: 3mm – 50mm
High tensile strength
Non-abrasive to shafts

Putty-like sealant for filling irregular joints and threaded connections. No curing required.

Plastic, non-drying compound
Withstands vibration and thermal cycling
Instant seal upon compression
Reusable and repositionable

Expanded PTFE Gasket Sheet

High-density sheet material for high-pressure and high-temperature applications.

Thickness: 1.0mm – 6.0mm
Temperature: -200°C to +260°C
Pressure Rating: Up to 400 bar
Low cold flow

Why Choose Expanded PTFE?

Expanded PTFE offers unmatched performance in sealing applications where reliability, purity, and chemical resistance are critical.

Chemical Resistance

Resists virtually all industrial chemicals, solvents, and acids—ideal for aggressive environments.

Extreme Temperatures

Operates from cryogenic -260°C to 260°C without degradation or embrittlement.

Low Permeability

Minimizes gas and fluid leakage—critical for high-purity and vacuum applications.

FDA & USP Compliant

Safe for food, beverage, and pharmaceutical applications. Meets strict regulatory standards.

Frequently Asked Questions

What is expanded PTFE?

Expanded PTFE (ePTFE) is a microporous form of polytetrafluoroethylene created through a specialized expansion process. It retains all the chemical inertness of standard PTFE but offers greater flexibility, conformability, and sealing performance.

Can expanded PTFE be used in food-grade applications?

Yes. Our expanded PTFE materials comply with FDA 21 CFR 177.1550 and USP Class VI standards, making them safe for use in food, beverage, and pharmaceutical processing equipment.

What temperature range does ePTFE handle?

Expanded PTFE performs reliably from -260°C to +260°C (-436°F to +500°F), making it suitable for both cryogenic and high-temperature applications.

Is ePTFE reusable?

Yes. Unlike traditional gasket materials, expanded PTFE maintains its integrity after disassembly and can often be reused if undamaged.

Do you offer custom sizes and shapes?

Yes. We provide custom die-cutting, slitting, and fabrication services to meet your exact specifications for gaskets, tapes, and sheets.

Get in Touch

For product inquiries, technical support, or custom solutions, contact the manufacturer directly.

Phone: 0086-574-87527771

Fax: 0086-574-87527773

Email: [email protected]

Address: No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China

Visit Official Website

China Quality Suppliers fobcompany.info

Notice for Buyers: If you are a buyer, the above information is generated by AI collection and does not constitute any advice. If necessary, please visit the corresponding official website.

For Domain Owners: If you are the domain owner and do not want to be included by fobcompany.info, please contact [email protected] via your corporate email to cancel. We will cancel your inclusion within 3 business days.

如果您是域名所有者不想被fobcompany.info收录请用企业邮箱联系[email protected] 取消收录我们将在3个工作日取消您的收录

Service Request: If you are other domain and want to be included, please contact [email protected]

如果您是其他域名合作也请联系[email protected]