External Gel Filled SFTP Cat5e Jelly Filled Single or Double Jacket Network Cable

Construction & Layered Design
Multi-Layer Protection Architecture:
- Conductors: 4 pairs of 24 AWG solid bare copper
- Insulation: High-density polyethylene (HDPE), color-coded per TIA-568
- Pair Shielding: Individual aluminum-polyester foil over each pair + drain wire
- Overall Shielding: Tinned copper braid (85-95% coverage)
- Gel Filling: Hydrophobic compound filling all interstitial spaces
- Inner Jacket: Optional bonded polyethylene layer
- Outer Jacket: Double-layer UV-resistant PE with carbon black stabilizer
- Optional Armor: Corrugated steel tape (available in some variants)
Gel Filling System:
- Type: Petroleum-based hydrophobic compound
- Fill Percentage: 60-80% of core void space
- Viscosity: Thixotropic (flows under pressure, gels at rest)
- Operating Temperature: -40°C to +70°C
- Non-Migrating: Formulated to resist flowing over time
- Compatibility: Non-reactive with copper, insulation, and jacket materials
Technical Specifications
Electrical Performance:
Parameter | Specification | Test Standard |
|---|
Category | 5e Enhanced | TIA-568-C.2 |
Frequency Range | 1-100 MHz | - |
Impedance | 100Ω ±15% @ 100 MHz | IEC 61156-5 |
Attenuation | ≤21.3 dB/100m @ 100 MHz | Maximum |
NEXT (Near-End Crosstalk) | ≥32.3 dB @ 100 MHz | Minimum |
PS-NEXT | ≥29.3 dB @ 100 MHz | Minimum |
Return Loss | ≥20.1 dB @ 100 MHz | Minimum |
Propagation Delay | ≤548 ns/100m | Maximum |
Delay Skew | ≤45 ns/100m | Maximum |
Shielding Effectiveness | ≥65 dB @ 30-1000 MHz | MIL-STD-285 |
Shielding Performance:
- Overall Shielding: Braided copper (85-95% coverage)
- Pair Shielding: Individual foil shields
- Transfer Impedance: <10 mΩ/m @ 100 MHz
- Surface Transfer Impedance: <20 mΩ/m @ 100 MHz
- Capacitive Unbalance: <250 pF/100m pair-to-shield
Mechanical & Environmental:
Parameter | Specification | Notes |
|---|
Cable Diameter | 8.0-9.5 mm | Larger than standard SFTP |
Weight | 80-100 kg/km | Approximate |
Bend Radius | 10× OD (installed) | Minimum |
Tensile Strength | ≥600 N | During installation |
Crush Resistance | ≥2000 N/100mm | IEC 61156-5 |
Impact Resistance | ≥5 Joules | 1m drop on concrete |
Jacket Thickness | 1.2-1.6 mm | Double layer typically |
Temperature Range | -40°C to +70°C (operating) | -20°C to +50°C (install) |
Environmental Protection:
- Water Immersion: IP68 rating (continuous submersion)
- Moisture Ingress: <1% weight gain after 30 days @ 1m depth
- Hydrostatic Pressure: Withstands 1 MPa (10 bar) for 1 hour
- UV Resistance: 5000+ hours Xenon arc test (no cracking)
- Chemical Resistance: Resists oils, acids, alkalis (pH 3-11)
- Abrasion Resistance: 1000+ cycles, 1kg load, 60 RPM
Gel Properties:
- Dielectric Constant: 2.2-2.5 @ 1 MHz
- Volume Resistivity: >10¹⁵ Ω·cm
- Vapor Transmission: <0.1 g/m²/day @ 38°C, 90% RH
- Flash Point: >200°C
- Toxicity: Non-toxic, RoHS compliant
Key Advantages
1. Ultimate Environmental Protection:
- Complete Moisture Barrier: Gel filling prevents water ingress even with jacket damage
- Corrosion Prevention: Copper conductors fully encapsulated
- Hydrostatic Pressure Resistance: Suitable for deep burial and submerged applications
- Freeze-Thaw Stability: Gel remains flexible at -40°C
2. Superior EMI/RFI Immunity:
- Dual Shielding: Foil + braid provides 65+ dB attenuation
- Grounding Integrity: Multiple drain paths ensure reliable grounding
- Alien Crosstalk Elimination: Individual pair shielding prevents external interference
- EMI Sealing: Gel provides additional dielectric barrier
3. Mechanical Durability:
- Crush Resistance: 2× stronger than standard outdoor cables
- Abrasion Resistance: Double jacket withstands rough installation
- Rodent Protection: Gel deters gnawing, optional armor available
- Tensile Strength: Supports longer pulls and vertical runs
4. Long-Term Reliability:
- Service Life: 25+ years in harsh environments
- Performance Stability: Minimal aging effect on electrical properties
- Maintenance-Free: No drying out or re-gel required
- Warranty: Typically 15-20 years manufacturer warranty
5. Installation Flexibility:
- Multiple Installation Methods: Direct burial, conduit, underwater, aerial
- Temperature Tolerance: Installable in extreme conditions
- Compatibility: Works with standard SFTP connectors and hardware
- Recovery: Can be removed and reinstalled if needed
Applications
Extreme Environment Installations:
1. Marine & Coastal:
- Port Facilities: Crane controls, container tracking
- Offshore Platforms: Monitoring and control systems
- Ship-to-Shore Communications: Ferry terminals, marinas
- Coastal Surveillance: Salt spray and high humidity areas
2. Industrial Processing:
- Chemical Plants: Corrosive atmosphere protection
- Wastewater Treatment: Submerged sensors and controls
- Food Processing: Washdown areas with high humidity
- Mining Operations: Underground and open-pit applications
3. Transportation Infrastructure:
- Tunnel Systems: Lighting, ventilation, and traffic control
- Bridge Monitoring: Structural health sensors
- Railway Underpasses: Flood-prone areas
- Airfield Lighting: Runway and taxiway systems
4. Utility & Energy:
- Substation Communications: High EMI environments
- Solar Farm Networks: Underground between arrays
- Wind Turbine Interconnect: Tower base to control
- Pipeline Monitoring: Buried along pipeline routes
5. Government & Military:
- Border Security: Harsh climate surveillance
- Military Bases: EMI-hardened communications
- Emergency Services: Disaster-resistant networks
- Secure Facilities: TEMPEST-protected installations
Specific Use Cases:
Application | Environmental Challenges | Why This Cable? |
|---|
Wastewater Plant | Constant moisture, chemical exposure, rodents | Gel prevents corrosion, dual shield handles motor EMI |
Offshore Wind Farm | Salt water, high winds, lightning strikes | Waterproof, EMI protection from generators |
Mountain Tunnel | Water seepage, freeze-thaw, vehicle emissions | Handles hydrostatic pressure, temperature extremes |
Chemical Storage | Corrosive vapors, safety showers, drainage | Chemical-resistant jacket, sealed construction |



Package


FAQS:
Q1: Are you a factory or trading company?
A1: We are a manufacturer.
Q2: Where is your factory located? How can I visit there?
A2:Our factory are located in jieyang city. You can fly to Shenzhen or Guangzhou international airport. And tell us your flight No. We will arrange to pick you up.
Q3: How can I get a sample to test your quality?
A3:We can provide free samples for your test and checking, you just need to bear the freight charge.
Q4:What payment method do you accept?
A4:T/T(Bank transfer), Western Union, Money Gram, Paypal, etc.
Q5: Can you put my brand name (logo) on these products?
A5: Yes! The professional OEM services will be welcomed to us. Our factory accepts to make the logo free for bulk orders.
Q6: May I know the status of my order?
A6: Yes .The order information and photos at different production stage of your order will be sent to you and the information will be updated in time.
Q7: What’s the leading time? (How long do you need to prepare my goods?
A7: Delivery (no more than 1000pcs) will be arranged within 10-15 days after payment, and arrive you within about 1 month via sea shipping.
Q8: How will you deliver my goods to me?
A8 Your purchases will be delivered by DHL, UPS, FedEx, TNT, EMS your door. Air Cargo and Sea Cargo, Direct line, Air Mail also be accepted according to clients' request.
Q9: Can you provide us more other products to us to help us to save more shipping costs?
A9: Yes. There’re kinds of Indoor Cables, Outdoor Cables, Coaxial Cables, Telephone Cables, Fiber Optic Cables and Accessories will be the main products line of Factory.
The OEM bulk order will be accept as well.