Anti-Capillary Water-Blocked Wire — GXL & TXL
Anti-capillary water-blocked wire for automotive and off-highway harnesses where moisture, oil or coolant can migrate through stranded conductors. GXL and TXL constructions use silicone water-block material over a soft annealed bare-copper conductor, followed by electron-beam cross-linked XLPE insulation.
- Voltage: 60 V DC (25 V AC).
- Temperature: -40°C to +125°C.
- Conductor: soft annealed bare copper, stranded; ASTM B3 / ASTM B174 references.
- Water block: anti-capillary silicone material applied over the conductor.
- Insulation: electron-beam cross-linked XLPE in GXL standard-wall or TXL thin-wall construction.
- Fluid performance: supplied data lists engine oil, gasoline, methanol, power steering fluid, ATF and coolant resistance.
- Test summary: 5 kV spark test, cold-bend, abrasion, ozone, oil and environmental-cycle checks are listed in the supplied package.
For a quotation, send the GXL/TXL type, AWG size, colour, quantity and harness application.
Anti-Capillary Wire for Fluid-Exposed Harnesses
When a harness crosses from a wet zone into a connector or ECU area, a cut, chafe point or open crimp can allow liquid to wick along a stranded conductor. TEBAOFLEX anti-capillary water-blocked wire is specified for automotive and related harnesses where containing that migration path matters, while retaining a low-voltage SAE J1128 primary-wire format.
The supplied range combines GXL standard-wall and TXL thin-wall constructions with a 60 V DC (25 V AC) rating, -40°C to +125°C operating temperature and electron-beam cross-linked XLPE insulation. Choose GXL when the harness route benefits from a thicker insulation wall; choose TXL when bundle diameter and weight are the tighter constraints. The current supplied size set is GXL AWG 12 and AWG 16, plus TXL AWG 14 and AWG 16.
- Suitable for: automotive, commercial-vehicle, off-highway and motorcycle harnesses exposed to fluid-migration risk.
- Confirm before ordering: conductor size, GXL/TXL wall type, colour, route, termination method, fluid exposure and quantity.
- Selection boundary: confirm the complete environmental duty for marine, outdoor or agricultural equipment before specifying.
See the TEBAOFLEX industrial cable range for related cable families.
Use the Specifications tab for supplied nominal dimensions and resistance values.
Construction
The conductor is processed with a silicone water-block material before insulation is extruded. The material fills the strand interstices to limit a continuous path for fluid migration; the finished wire then retains a familiar single-core XLPE primary-wire format.
| Layer | Material / construction | Buyer relevance |
|---|---|---|
| 1 — Conductor | Soft annealed bare copper, stranded; ASTM B3 / ASTM B174 references. | Specify the AWG size and strand construction against the harness drawing. |
| 2 — Water block | Anti-capillary silicone water-block material applied over the conductor. | Fills gaps between strands to limit fluid migration along the conductor. |
| 3 — Insulation | Electron-beam cross-linked polyethylene (XLPE). | Available as GXL standard wall or TXL thin wall under the supplied range. |
GXL or TXL
- GXL: standard wall thickness with greater mechanical and dielectric margin; the default choice when the harness route has less packaging pressure.
- TXL: thin-wall construction for reduced outside diameter and weight in tight or weight-sensitive bundles.
- Both supplied constructions use the same 60 V DC (25 V AC) rating, -40°C to +125°C temperature range and water-block approach. Confirm the final size and termination against the equipment drawing.
Applications
Anti-capillary construction is relevant where a harness moves between wet, dirty or fluid-exposed areas and dry electrical devices. Use the supplied low-voltage primary-wire range for these application groups:
- Automotive: engine-compartment harnesses, starting and charging circuits, lighting, signal and instrument-panel wiring, sensor leads, and fuel or coolant system wiring.
- Commercial vehicles and off-highway equipment: trucks, buses, tractors and construction equipment where washdown, mud and long service intervals increase fluid-ingress risk.
- Motorcycles and powersports: exposed harnesses with limited body-panel protection.
- Harness replacement and OEM builds: confirm GXL or TXL wall type, conductor size, colour, strip/crimp process and the equipment's routing requirements.
Application boundary
This is a low-voltage primary wire, not a universal substitute for a multi-core, shielded, armoured or continuously reeling cable. For marine, outdoor lighting, agricultural or other non-vehicle duties, confirm the environment, installation method, chemical exposure and required approvals before ordering.
Specifications
The following values are the supplied nominal product data. Confirm the final size, colour and ordering configuration against the project drawing before release.
| Property | Supplied value |
|---|---|
| Rated voltage | 60 V DC (25 V AC) |
| Operating temperature | -40°C to +125°C |
| Insulation | Electron-beam cross-linked XLPE |
| Water block | Anti-capillary silicone material applied over conductor |
| Flame behaviour | Self-extinguishing within 9 seconds; supplied SAE J1128 limit listed as 70 seconds |
| Fluid resistance listed | Engine oil, gasoline, methanol, power steering fluid, ATF and coolant |
| Abrasion test listed | Sandpaper abrasion, 220 g at 1500 mm/min |
| Spark test | 5 kV, 100% of production |
| Insulation volume resistivity | > 10⁹ ohm-cm |
| Colours | Red, yellow, blue, green, brown, purple and others to order; stripes and surface printing available |
Supplied size and electrical data
| Type / size | Stranding | Conductor OD (mm) | Insulation wall (mm) | Overall OD (mm) | Weight (kg/km) | Max resistance at 20°C (Ω/km) |
|---|---|---|---|---|---|---|
| GXL AWG 12 | 19/0.44 | 2.20 | 0.66 | 3.52 | 42.1 | 5.97 |
| GXL AWG 16 | 19/0.287 | 1.43 | 0.58 | 2.59 | 19.5 | 14.03 |
| TXL AWG 14 | 19/0.361 | 1.80 | 0.41 | 2.62 | 26.7 | 8.86 |
| TXL AWG 16 | 19/0.287 | 1.43 | 0.41 | 2.25 | 17.7 | 14.03 |
Conductor cross-section references: AWG 12 ≈ 2.9 mm², AWG 14 ≈ 1.9 mm² and AWG 16 ≈ 1.2 mm².
Standards
These references and test statements are taken from the supplied product package. The relationship shown is kept source-accurate: a standard reference or test method is not presented as a product certificate unless the source identifies it that way.
| Reference / item | Supplied wording |
|---|---|
| SAE J1128 | Low-tension primary cable reference for GXL and TXL types. |
| ASTM B3 | Soft annealed bare copper wire reference. |
| ASTM B174 | Bunch-stranded copper conductor reference. |
| Supplied test summary | Appearance, construction, conductor resistance, 5 kV spark, insulation volume resistivity, tensile and elongation, ageing retention, flammability, cold bend, strip force, sandpaper abrasion, ozone, engine-oil and gasoline resistance, and environmental cycling are listed as conforming or passed. |
| Documentation | The supplied material states that testing is performed in-house and test reports are issued with each shipment. |
| Company certification references listed in supplied materials | ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, VDE, UL 62, CSA C22.2 No. 9, CE and Mining Safety Mark (MA). |
List any project-specific approval, inspection, test-report, marking or traceability requirement in the quotation request so the applicable documentation can be checked before production.
Request a cable recommendation and quotation
Send the required services, cable length, mechanical duty, environment, termination and quantity. Our team will review the application before quoting.
- Include the product name or SKU plus the required cable length and quantity.
- Attach a specification, drawing or data sheet when available.