HSC-B Semi-Rigid Heat Shrink End Cap (Double-Wall)
Double-wall semi rigid heat shrink end cap for durable cable-end protection.
Semi-rigid polyolefin outer + hot-melt adhesive inner for a strong, waterproof seal.
Shrink ratio 4:1; initial shrink ≥80 °C; full shrink ≥135 °C; operating −45 °C ~ +110 °C.
Standard color: black; RoHS compliant; sizes cover common power-cable terminations.
Overview
The HSC-B series is a double-wall semi rigid heat shrink end cap designed for long-lasting cable-end sealing.
A semi-rigid, radiation cross-linked polyolefin outer layer provides enhanced mechanical protection, while the inner
hot-melt adhesive flows upon heating to bond to cable jackets and fill gaps, creating a uniform, waterproof termination.
Shrink Ratio: 4:1
Construction: Semi-rigid polyolefin outer + hot-melt adhesive inner
Initial Shrink: ≥80 °C
Full Shrink: ≥135 °C
Operating Temp: −45 °C ~ +110 °C
Standards: RoHS compliant
Key Features
- Robust, semi-rigid protective outer wall resists impact and abrasion
- Adhesive-lined interior forms a tight, waterproof and moisture-proof seal
- Consistent finish for neat, professional cable terminations
- Easy processing with hot-air gun or oven
Technical Specifications
| Property | Index | Test Method |
|---|---|---|
| Tensile strength (MPa) | ≥12 | ASTM D 2671 |
| Elongation at break (%) | ≥300 | ASTM D 2671 |
| Tensile strength after aging (MPa) | ≥9 (158 °C × 168 h) | ASTM D 2671 |
| Elongation at break after aging (%) | ≥100 | ASTM D 2671 |
| Axial rate of change (%) | −8% ~ +8% | ASTM D 2671 |
| Thermal shock | No cracks, no dripping (225 °C × 4 h) | ASTM D 2671 |
| Cold bending flexibility | No crack (−40 °C × 4 h) | ASTM D 2671 |
| Water absorption (%) | <0.50 | ASTM D 2671 (B) |
| Volume resistivity (Ω·cm) | ≥1×1014 | IEC 60093 |
| Breakdown strength (kV/mm) | ≥22 | IEC 60243 |
Specification Sheet (Dimensions)
| Model | Specification | Standard length (mm) | Supplied inner diameter D (≥ mm) | Inner diameter d (≤ mm) | Total wall thickness (mm) | Outer thickness W (mm) | Glue layer thickness (mm) | |
|---|---|---|---|---|---|---|---|---|
| Φ (mm) | A | B | ||||||
| HSC-B-3 | Φ3.2 | 22.0 | 12.7 | ≥3.2 | ≤0.80 | 1.20 | 0.64 | 0.56 |
| HSC-B-4 | Φ4.8 | 25.4 | 15.2 | ≥4.8 | ≤1.30 | 1.52 | 0.76 | 0.76 |
| HSC-B-6 | Φ6.4 | 28.4 | 15.2 | ≥6.4 | ≤1.52 | 1.91 | 1.00 | 0.91 |
| HSC-B-9 | Φ9.5 | 31.8 | 18.3 | ≥9.5 | ≤2.00 | 2.08 | 1.08 | 1.00 |
| HSC-B-12 | Φ12.7 | 38.1 | 21.6 | ≥12.7 | ≤2.41 | 2.54 | 1.30 | 1.24 |
Note: custom sizes and lengths are available on request.
Applications
- Power-cable and wire-harness end sealing and protection
- Moisture-proof and environmental protection for stored cable ends
- Industrial/field terminations requiring semi-rigid mechanical support
Looking for more options? Browse our
heat-shrink tubing pillar page,
or see our flexible waterproof end cap
HSC-F.
heat-shrink tubing pillar page,
or see our flexible waterproof end cap
HSC-F.
Related Products
- Electrical heat shrink tube — HTS 2X
- Polyolefin heat shrink tube — HTD 2X
- Adhesive lined heat shrink tube — HS4X-B
- Marine heat shrink tube — HS-GF 3X/4X
- Heat shrink tube kit — HSTW2X
- Heat shrink end cap — HSC-F
- Heat shrink tube for auto (EV busbar) — HSNE-F
Standards Referenced
FAQs
What is HSC-B?
HSC-B is a semi-rigid heat shrink end cap designed to protect and seal cable ends. It provides durable mechanical protection and basic moisture resistance.
How to choose the right end-cap size?
Select an expanded ID 20–30% larger than the cable OD at the end. After shrinking, the cap should fit tightly around the jacket to secure and seal the end.
Is HSC-B waterproof?
HSC-B is semi-rigid single-wall. For waterproof sealing with adhesive, choose the double-wall version
HSC-F.
HSC-F.
