Excellent Wrapping Performance
Excellent flexibility and conformability support high-speed wrapping and close adhesion around conductors and insulation structures.
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Sunfilm® Unsintered PTFE Wrapping Tape
Engineered for Aerospace Wiring, High-Temperature Insulation and High-Reliability Electrical Systems
Features
Applications
Technical Parameters
Specifications
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Working Principle
Guide
Features
Sunfilm® Unsintered PTFE Wrapping Tape
Sunfilm® Unsintered PTFE Wrapping Tape
Engineered for Aerospace Wiring, High-Temperature Insulation and High-Reliability Electrical Systems
Sunfilm® Unsintered PTFE Wrapping Tape is manufactured from 100% PTFE resin through a precision calendering process without sintering. It combines excellent flexibility, stable electrical insulation performance, high dielectric strength and outstanding resistance to extreme temperatures.
The tape is primarily used as an insulation wrapping layer, structural reinforcement layer and protective layer in aerospace wiring, high-temperature cables, instrumentation cables and other high-reliability electrical systems. It provides long-term insulation protection and mechanical stability for mission-critical wiring applications.
Sunfilm® Unsintered PTFE Has One Clear Purpose:
Reliable Insulation for Mission-Critical Wiring Systems
Reliable Electrical Insulation
Stable dielectric properties and high dielectric strength help ensure long-term electrical reliability.
Wide Operating Temperature Range
Maintains stable insulation performance across temperatures from −190°C to +260°C.
Structural Reinforcement
Functions as both an insulation and reinforcement layer, improving the mechanical stability of cable structures.
Excellent Chemical Resistance
Resistant to fuels, lubricants, hydraulic fluids and a wide range of aggressive chemical media.
Long-Term Durability
Provides stable mechanical and electrical performance for long-term operation in demanding environments.
Application
Sunfilm® Unsintered PTFE Provides Reliable Insulation for Mission-Critical Wiring Systems
Aerospace Wiring Systems
High-Temperature Cable Systems
Electrical Insulation Systems
Instrumentation and Control Cables
Defense and Military Electronics
*Not recommended for use in plastic threaded connections, potable water systems, ultra-high-purity oxygen systems, or systems requiring immediate pressurization.
Technical Parameters
| Scope | Typical Value | Unit | Tolerance | Test Standard |
|---|---|---|---|---|
| Material | 100% PTFE | — | — | — |
| Color | Natural | — | — | Visual Inspection |
| Width | 3–150 | mm | ±0.3 | GB/T 6673 |
| Thickness | 0.051–0.254 | mm | ±0.003 (<0.152) ±0.005 (≥0.152) | GB/T 6672 |
| Density | 1.6 | g/cm³ | ±0.05 | GB/T 1033.1 |
| Tensile Strength | 8–25 | MPa | — | GB/T 1040.3 |
| Elongation at Break | ≥50 | % | — | GB/T 1040.3 |
| Dielectric Constant | 1.8 | — | — | GB/T 1409 / ASTM D150 |
| Dielectric Dissipation Factor (1 MHz) | ≤0.001* | — | — | GB/T 1409 / ASTM D150 |
| Dielectric Strength | 40–60 | kV/mm | — | GB/T 1408.1 |
| Working Temperature | −190 to +260 | °C | — | GB/T 1409 |
| Chemical Resistance | Excellent | — | — | Inherent PTFE Properties |
Specifications
| Series | Type | Market | Application | |
|---|---|---|---|---|
| Sunfilm® Unsintered PTFE | High-Density Wrapping Film | Global | Aerospace wiring, high-temperature cables and high-reliability electrical insulation systems |
Why Choose ForeverSeal® Pipe Thread Sealant
ForeverSeal® Pipe Thread Sealant is a sealed sealing product required in High pressure fields - Under harsh working conditions, it can make up for the deficiencies of PTFE tape.
| Comparison | Conventional Cable Wrapping Material | Sunfilm® Unsintered PTFE |
|---|---|---|
| ✖Limited flexibility on complex structures | ✔Flexible and highly conformable |
| ✖Depends on material type | ✔40–60 kV/mm |
| ✖Limited operating range | ✔−190°C to +260°C |
| ✖Limited mechanical support | ✔Improves cable structural integrity |
| ✖Performance varies by material | ✔Excellent resistance |
| ✖May degrade under harsh conditions | ✔Stable and durable |
Related Downloads
Reliable Insulation for Mission-Critical Wiring Systems.
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.
Explore More
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.
Explore MoreGet a PTFE Thread Seal Tape Quote and Technical Support
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PTFE Sealing for Critical Systems — No Guesswork, No Leakage Risk
Tell us your application—gas, water, chemical, oxygen, HVAC, or industrial systems—our engineers will recommend the right PTFE sealing solution based on your media,pressure, temperature, and compliance requirements.
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Whether you are evaluating PTFE thread seal tape for industrial equipment, OEM assembly or piping systems, Foreverseal® supports your project with product selection, technical documentation, manufacturing capability and consistent supply.
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Evaluate Foreverseal® pink, blue and grey industrial PTFE thread seal tapes for your equipment, piping or threaded connection requirements. Confirm the appropriate product specification before OEM production or bulk purchasing.
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