EN
ST2401 is a self-closing wrap and woven from PET monofilaments and multifilaments. The orange appearance facilitates high-voltage identification and it’s robust structure provides superior impact protection for cables.
The Thicken Plain Weave Self-closing Wrap-ST2401 is specifically designed for automotive chassis wire harness protection. It combines a thickened plain-weave PET structure with a self-closing design, delivering verified protection against stone impact, temperature extremes, and chemical exposure across demanding chassis environments.
From an automotive harness engineer's standpoint, what matters is whether the sleeve passes harness-level validation without rework. The Thicken Plain Weave Self-closing Wrap-ST2401 has been verified against thermal aging, low-temperature bending, abrasion, and flammability standards, providing the documentation basis needed for Tier 1 supplier qualification.
Chassis harnesses are continuously struck by gravel and road debris at highway speeds. The thickened plain-weave PET structure of the Thicken Plain Weave Self-closing Wrap-ST2401 forms a dense barrier that distributes impact energy across the weave rather than concentrating stress at a single contact point.
A common misconception is that sleeve diameter determines protection quality. In practice, wall construction and material toughness govern impact and abrasion performance. The Thicken Plain Weave Self-closing Wrap-ST2401 achieves ISO 6722-1 Class 6 abrasion resistance at more than 30,000 cycles through weave density and wall integrity, not diameter alone.
The self-closing design requires no tools or tape to maintain closure. The weave returns to a closed position after harness installation, enabling faster assembly, easier routing corrections, and cleaner disassembly during maintenance. In high-volume chassis assembly, reductions in per-harness installation time compound across a full production run.
The Thicken Plain Weave Self-closing Wrap-ST2401 is supplied in orange, the automotive industry standard for high-voltage harness identification. This allows technicians to immediately distinguish high-voltage conductors from low-voltage signal lines during assembly and service on electric vehicle platforms. For chassis-routed battery pack harnesses in 400 V or 800 V systems, the sleeve provides physical protection, visual identification, and FMVSS 302 flame compliance in one product — avoiding the need to stack multiple protection layers.
All figures below are typical test values for the Thicken Plain Weave Self-closing Wrap-ST2401. Product-specific test reports are available through your sales representative.
| Test Item | Test Condition | Result |
|---|---|---|
| Abrasion resistance | ISO 6722-1 | Class 6, 30,000 cycles |
| Flammability | FMVSS 302 | Self-extinguishing |
| Thermal aging impact | 175°C, 336 hours | No cracking or fracture |
| Low-temperature bending | –40°C, 4 hours | No cracking or fracture |
| Fluid and chemical resistance | D47 1924 | No fading, no decomposition |
| Hot-bending | 180° bend, 1 kg load, 175°C, 3 hours | No damage or distortion |
| Working temperature range | — | –40°C to 150°C |
The low-temperature bending result deserves attention: sleeves that appear flexible at room temperature can become brittle at –40°C, making cold-weather validation easy to skip during qualification. The 336-hour thermal aging test at 175°C with no post-aging cracking is a meaningful durability indicator for high-heat chassis zones near exhaust systems.
| Part No. | Nominal I.D. (mm) | Thickness (mm) | Reel Length (m/reel) |
|---|---|---|---|
| ST24010714 | 7 | 1.0 ± 0.2 | 100 |
| ST24011014 | 10 | 1.0 ± 0.2 | 100 |
| ST24011314 | 13 | 1.0 ± 0.2 | 100 |
| ST24011614 | 16 | 1.0 ± 0.2 | 100 |
| ST24011914 | 19 | 1.0 ± 0.2 | 50 |
| ST24012514 | 25 | 1.0 ± 0.2 | 25 |
Sleeves can be cut to fixed lengths. Non-standard internal diameters and reel lengths are available on request.
The Thicken Plain Weave Self-closing Wrap-ST2401 is primarily used to protect chassis wire harnesses from stone impact and road debris. Chassis harnesses without adequate protection accumulate abrasion damage that eventually leads to insulation failure over the vehicle service life. The dense thicken plain-weave construction addresses the impact and abrasion requirements of this environment, while the self-closing design simplifies installation in the tight routing geometry of a vehicle undercarriage.
For new energy vehicle platforms, the Thicken Plain Weave Self-closing Wrap-ST2401 combines orange high-voltage identification, FMVSS 302 flame compliance, and ISO 6722-1 Class 6 abrasion resistance in a single sleeve product. This consolidates protection, color coding, and flame safety into one selection for engineers specifying chassis high-voltage cable protection on EV and hybrid platforms.
Off-road vehicles and commercial trucks impose higher debris impact loads and wider temperature cycling on chassis harnesses than passenger vehicles. The verified abrasion performance exceeding 30,000 cycles, chemical resistance, and the –40°C to 150°C service range of the Thicken Plain Weave Self-closing Wrap-ST2401 support deployment in these more demanding environments.
The manufacturing facility holds ISO 9001, IATF 16949, ISO 14001, ISO 45001, and military standard GJB9001C certifications. IATF 16949 is the standard quality management requirement for automotive Tier 1 buyers. Test reports for the Thicken Plain Weave Self-closing Wrap-ST2401 are available on request to support supplier qualification reviews and technical documentation.
ST2401 is a self-closing wrap and woven from PET monofilaments and multifilaments. The orange appearance facilitates high-voltage identification and it’s robust structure provides superior impact protection for cables.
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