Excellent Flexibility
The expanded microporous structure provides excellent softness and conformability for wrapping conductors and complex cable structures.
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Sunfilm® Expanded PTFE Wrapping Tape
Engineered for Aerospace, Defense and High-Frequency Communication SystemsWith a density of only 0.50–0.90 g/cm³, Sunfilm® ePTFE wrapping tape significantly reduces overall cable weight, making it especially suitable for aerospace and mobile communication systems.
Features
Applications
Technical Parameters
Specifications
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Working Principle
Guide
Features
Sunfilm® Expanded PTFE Wrapping Tape
Sunfilm® Expanded PTFE Wrapping Tape
Engineered for Aerospace, Defense and High-Frequency Communication Systems
Sunfilm® Expanded PTFE Wrapping Tape is manufactured from 100% expanded polytetrafluoroethylene using a controlled microporous structure. With an ultra-low dielectric constant, extremely low signal loss, lightweight construction, excellent flexibility, and outstanding temperature resistance, it is engineered for aerospace, defense, satellite communications, radar systems, and other mission-critical high-frequency cable applications.
Compared with conventional cable insulation and wrapping materials, Sunfilm® ePTFE wrapping tape helps reduce transmission loss and cable weight while maintaining stable electrical performance across wide temperature ranges.
Sunfilm® Expanded PTFE Wrapping Tape Has One Clear Purpose:
Transmit High-Frequency Signals Farther and More Reliably—While Reducing Cable Weight.
Ultra-Low Dielectric Constant
With a dielectric constant of approximately 1.3–1.4, the material helps reduce signal delay and transmission loss.
Extremely Low Dielectric Loss
A dielectric dissipation factor of ≤0.0005 at 1 MHz supports stable high-frequency transmission and signal integrity.
Lightweight Microporous Structure
With a density of only 0.50–0.90 g/cm³, the tape helps reduce overall cable weight.
Wide Temperature Resistance
Maintains flexibility and stable electrical performance from −190°C to +260°C.
Excellent Environmental Resistance
Provides strong resistance to moisture, chemicals, fuels, oils, solvents, and corrosive media.
Application
Sunfilm® Expanded PTFE Wrapping Tape Is a Core Material for High-Reliability Signal Transmission Systems
Satellite Communication
5G Base Stations
Aerospace Communications
Data Centers
Medical Imaging Systems
*Not recommended for use in plastic threaded connections, potable water systems, ultra-high-purity oxygen systems, or systems requiring immediate pressurization.
Technical Parameters
| Scope | Standard Low-Density Film | High-Strength Low-Density Film | Unit | Tolerance | Test Standard |
|---|---|---|---|---|---|
| Material | 100% PTFE | 100% PTFE | — | — | — |
| Color | Natural | Natural | — | — | Visual Inspection |
| Width | 3–150 | 3–150 | mm | ±0.3 | GB/T 6673 |
| Thickness | 0.051–0.254 | 0.051–0.254 | mm | ±0.003 (<0.152) ±0.005 (≥0.152) | GB/T 6672 |
| Density | 0.50–0.90 | 0.50–0.90 | g/cm³ | ±0.05 | GB/T 1033.1 |
| Tensile Strength | 8–25 | 15–50 | MPa | — | GB/T 1040.3 |
| Elongation at Break | ≥60 | ≥50 | % | — | GB/T 1040.3 |
| Dielectric Constant | 1.3–1.4 | 1.3–1.4 | — | — | GB/T 1409 / ASTM D150 |
| Dielectric Dissipation Factor (1 MHz) | ≤0.0005* | ≤0.0005* | — | — | GB/T 1409 / ASTM D150 |
| Dielectric Strength | 30–50 | 30–50 | kV/mm | — | GB/T 1408.1 |
| Working Temperature | -190℃ to +260℃ | -190℃ to +260℃ | ℃ | — | GB/T 1409 |
| Chemical Resistance | Excellent | Excellent | — | — | Inherent PTFE Properties |
Specifications
| Series | Type | Market | Application | |
|---|---|---|---|---|
| Sunfilm® Expanded PTFE | Standard Low-Density Film | Global | Aerospace, RF, microwave, coaxial, and high-frequency communication cables | |
| Sunfilm® Expanded PTFE | High-Strength Low-Density Film | Global | High-strength cable wrapping for aerospace, defense, and mission-critical signal systems |
Related Downloads
Enable high-frequency signals to travel further and more stably, while making the cable lighter.
Frequently Asked Questions
- Which industries commonly use Pipe Thread Sealant?Pipe Thread Sealant is widely used in plumbing, HVAC, gas distribution, hydraulic systems, petrochemical plants, water treatment facilities, and industrial manufacturing.
- How much pressure can Pipe Thread Sealant withstand?Depending on the formulation and application, high-performance thread sealants can withstand pressures up to 69 MPa (10,000 psi).
- What materials can Pipe Thread Sealant be used on?It is suitable for most metal threaded fittings, including steel, stainless steel, brass, copper, and aluminum.
- Can Pipe Thread Sealant replace PTFE Tape?Yes. In many industrial applications, Pipe Thread Sealant can replace PTFE Tape and provide a more reliable and durable seal.
- What is the difference between Pipe Thread Sealant and PTFE Tape?PTFE Tape mainly fills thread gaps mechanically, while Pipe Thread Sealant forms a chemical seal after curing, providing higher pressure resistance, better vibration resistance, and long-term sealing performance.
Guide
Why choose ForeverSeal® GasSafe?
Because gas systems cannot tolerate any failures. ForeverSeal® GasSafe is designed specifically for gas pipeline applications, not a modification of generic PTFE tape. From material density and thickness to color-coded compliance and controlled manufacturing, every design parameter revolves around one goal: achieving a long-lasting, easily inspectable gas seal.
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Five Causes and Countermeasures for Gas Pipeline Seal Failure
Understand the five main causes of gas pipeline thread seal failure—and how GasSafe solves these problems. Most gas leaks are not caused by installers, but by the use of incorrect tape.
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Learn About xxx's Case Studies
ForeverSeal® GasSafe products are widely used in: residential gas pipeline installations, city gas distribution networks, commercial gas appliance connections, LPG and propane system components, and OEM-assembled gas equipment.
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