The TXL Anti-Capillary Water-Blocked Automotive Wire is a single-core, low-voltage wire designed to help limit moisture migration through conductor strands. This moisture-resistant construction is suitable for vehicle circuits and equipment exposed to condensation, washdown, humidity or fluid contact.
TEBAOFLEX combines fine stranded tinned copper with a silica-based blocking agent to fill the spaces between individual strands. As a result, the wire helps reduce capillary fluid travel toward electrical terminations, supporting dependable circuit protection in demanding automotive and mobile-equipment applications.
How the Anti-Capillary Construction Works
Moisture can move along untreated stranded conductors and reach connectors or electronic circuits. The TXL anti-capillary design introduces a blocking material within the conductor strand bundle. Therefore, the construction helps restrict the path of water and fluids without changing the practical flexibility needed for harness routing.
- Conductor: fine stranded tinned copper to ASTM B174 reference construction.
- Blocking system: silica-based agent applied between conductor strands.
- Wire type: thin-wall TXL automotive construction.
- Working voltage: 300 V.
- Operating temperature: −40°C to +125°C.
- Reference standard: SAE J1128 automotive wire applications.
Technical Specifications
| Property | Specification |
|---|---|
| Product type | TXL anti-capillary water-blocked automotive wire |
| Conductor | Fine stranded tinned copper |
| Water-blocking method | Silica-based blocking agent between strands |
| Rated working voltage | 300 V |
| Test voltage | 3000 V |
| Temperature range | −40°C to +125°C |
| Application reference | SAE J1128 |
Available Wire Sizes
The following conductor options are referenced for standard TXL anti-capillary wire construction. Confirm the required cross-section, insulation colour and installation conditions with TEBAOFLEX before specifying a production configuration.
| AWG | Stranding | Nominal insulation thickness | Nominal diameter | Approx. weight |
|---|---|---|---|---|
| 22 AWG | 7/30 | 0.016 in | 0.062 in | 5.25 |
| 20 AWG | 7/28 | 0.016 in | 0.070 in | 6.10 |
| 18 AWG | 16/30 | 0.016 in | 0.078 in | 7.50 |
| 16 AWG | 19/29 | 0.016 in | 0.088 in | 11.00 |
| 14 AWG | 19/27 | 0.016 in | 0.103 in | 16.00 |
| 12 AWG | 19/25 | 0.018 in | 0.126 in | 24.00 |
| 10 AWG | 19/23 | 0.020 in | 0.153 in | 37.00 |
Typical Applications
- Automotive and commercial-vehicle wiring harnesses.
- Engine-bay, transmission and chassis circuits exposed to moisture.
- Marine, agricultural and outdoor equipment wiring.
- Oil and gas support equipment, traffic control and mobile machinery.
Specify Your Water-Blocked Automotive Wire
For a focused quotation, provide the wire size, insulation colour, required length, voltage, temperature range and expected fluid exposure. The TEBAOFLEX cable solutions team can help select a water-blocked construction that suits your harness and procurement requirements.





