HSC-B 4:1 Semi-Rigid Dual-Wall Heat Shrink Waterproof End Cap
YOCL Electric HSC-B semi-rigid dual-wall heat shrink end caps seal, insulate and mechanically protect cable terminations.
- Nominal 4:1 shrink ratio with a pre-sealed closed end.
- Radiation cross-linked polyolefin outer wall and hot-melt adhesive lining.
- Five black models with supplied I.D. limits from ≥3.2 mm to ≥12.7 mm.
- Initial shrink temperature ≥80°C; full shrink temperature ≥135°C.
- Operating range -45°C to +110°C; breakdown strength ≥22 kV/mm.
Aperçu
YOCL Électrique HSC-B 4:1 Semi-Rigid Dual-Wall Heat Shrink Waterproof End Cap seals, insulates and mechanically protects cable ends and wire-harness terminations. It combines a semi-rigid radiation cross-linked polyolefin outer wall with an internal hot-melt adhesive lining.
The pre-sealed closed end covers the cable termination, while the open end allows installation over the cable. During heating, the cap recovers and the adhesive flows around the cable surface. After cooling, the adhesive-lined closed-end construction helps form a waterproof and moisture-resistant seal. Five standard models provide a nominal 4:1 shrink ratio.
Caractéristiques
- Semi-rigid outer wall: Provides structural and mechanical protection around cable terminations.
- Closed-end design: Covers the cable end with a pre-sealed outer wall.
- Dual-wall adhesive sealing: Combines polyolefin insulation with a hot-melt adhesive lining.
- Nominal 4:1 recovery: Supports installation over a cable termination before shrinking around the cable.
- Electrical insulation: Specified breakdown strength is ≥22 kV/mm.
- Five black models: Supplied and recovered diameters, A/B lengths and wall thicknesses are listed below.
Spécifications techniques
| Parameter | Specification |
|---|---|
| Brand | YOCL Électrique |
| Series | HSC-B |
| Product type | Semi-rigid dual-wall heat shrink waterproof cable end cap |
| Construction | Dual wall / semi-rigid / closed end |
| Shrink ratio | 4:1 nominal |
| Outer material | Radiation cross-linked polyolefin |
| Inner layer | Hot-melt adhesive |
| Initial shrink temperature | ≥80°C |
| Full shrink temperature | ≥135°C |
| Température de fonctionnement | -45°C to +110°C |
| Standard color | Black |
| Environmental standard | RoHS |
| Water absorption | <0.50% |
| Number of listed models | 5 |
Mechanical Performance
| Property | Specification | Test method or condition |
|---|---|---|
| Tensile strength | ≥12 MPa | ASTM D2671 |
| Elongation at break | ≥300% | ASTM D2671 |
| Tensile strength after aging | ≥9 MPa | 158°C for 168 hours |
| Elongation after aging | ≥100% | 158°C for 168 hours |
| Axial change | -8% to +8% | ASTM D2671 |
Thermal Test Performance
| Test | Condition | Result |
|---|---|---|
| Thermal shock | 225°C for 4 hours | No cracks or dripping |
| Cold bending | -40°C for 4 hours | No crack |
The thermal-shock, cold-bending and aging temperatures describe test conditions. The operating temperature range is -45°C to +110°C.
Electrical Performance
| Property | Specification | Test method |
|---|---|---|
| Breakdown strength | ≥22 kV/mm | IEC 60243 |
| Volume resistivity | ≥1 × 10¹⁴ Ω·cm | IEC 60093 |
Dimension

| Model | Nominal size (mm) | Standard length (A/B) (mm) | Supplied I.D. (mm) | Max. I.D. after recovery (mm) | Total wall thickness (mm) | Outer wall thickness (mm) | Adhesive layer thickness (mm) |
|---|---|---|---|---|---|---|---|
| HSC-B-3 | Ø3.2 | 22.0 / 12.7 | ≥3.2 | ≤0.80 | 1.20 | 0.64 | 0.56 |
| HSC-B-4 | Ø4.8 | 29.5 / 15.2 | ≥4.8 | ≤1.20 | 1.52 | 0.76 | 0.76 |
| HSC-B-6 | Ø6.4 | 31.4 / 15.2 | ≥6.4 | ≤1.52 | 1.91 | 1.00 | 0.91 |
| HSC-B-9 | Ø9.5 | 39.8 / 18.3 | ≥9.5 | ≤2.00 | 2.08 | 1.08 | 1.00 |
| HSC-B-12 | Ø12.7 | 35.1 / 21.6 | ≥12.7 | ≤2.41 | 2.54 | 1.30 | 1.24 |
All listed dimensions are in millimetres. I.D. means internal diameter. Supplied I.D. values are minimum limits, and recovered I.D. values are maximum limits. Standard lengths retain the A/B notation.
Selection Guide
Select a model with a supplied I.D. large enough to pass over the cable termination. Review its specified maximum recovered I.D., A/B length values and wall thicknesses for the area to be covered.
Use the listed diameter limits to assess fit. For example, HSC-B-9 has a minimum supplied I.D. of 9.5 mm and a maximum recovered I.D. of 2.00 mm. Its total wall thickness is 2.08 mm, comprising 1.08 mm outer wall and 1.00 mm adhesive layer.
Check installation temperatures separately from the service range. Initial shrink is specified at ≥80°C and full shrink at ≥135°C; the operating range is -45°C to +110°C.
Applications
- Power cable ends and electrical cable terminations.
- Wire-harness ends and unused cable ends.
- Moisture-sensitive cable-end insulation and sealing.
- Cable storage and transportation protection.
- Mechanical protection of cable terminations.
Installation Notes
- Select an HSC-B model using the cable-end diameter and dimensional table.
- Ensure the termination is clean and suitable for adhesive sealing.
- Slide the open end of the cap over the termination and position the closed end to cover the cable end.
- Apply controlled heat evenly until the outer wall has recovered and the adhesive has flowed around the cable.
- Remove the heat source and allow the assembly to cool completely.
- Inspect the recovered cap and final seal.
Ordering Information
Specify HSC-B, the required model and quantity when making an enquiry to YOCL Electric. Available models are HSC-B-3, HSC-B-4, HSC-B-6, HSC-B-9 and HSC-B-12, with black as the standard color.