Model: HSID-2X / HSID-3X
Heat Shrink Identification Tubing (HSID)
Heat Shrink Identification Tubing (HSID) is specifically designed to meet the wire and cable marking needs of manufacturers with high-performance requirements. Made from permanent, flame-retardant, radiation cross-linked polyolefin, it provides a durable and legible surface for computer printing or thermal transfer printing. Available in 2:1 and 3:1 shrink ratios, HSID is lightweight, easy to install, and ideal for aerospace, military, and commercial applications where reliable wire identification is critical.
Key Features & Benefits
- Permanent & Printable: Provides a smooth, high-contrast surface (Yellow or White) optimized for thermal transfer and computer printing, ensuring long-lasting legibility.
- High-Temperature Resistance: Rated for continuous operation up to +135°C (+275°F), making it suitable for demanding aerospace and automotive environments.
- Quick Recovery: Designed for fast shrinking at relatively low temperatures, protecting heat-sensitive components during installation.
- Material Options: Available in both Military-grade RoHS compliant material and Halogen-free material to meet strict environmental and safety standards.
- Flame Retardant: Meets the stringent VW-1 flammability rating for enhanced safety in electrical assemblies.
- Lightweight: Adds minimal weight and bulk to wire harnesses, a crucial factor for aerospace and aviation applications.
Common Applications
- Aerospace and aviation wire harness identification
- Military and defense equipment cable marking
- Telecommunications and data center cable management
- Automotive and railway electrical systems
- Industrial control panels and complex electronic assemblies
Product Specifications & Technical Data
- Model Series: HSID-2X (2:1 Ratio), HSID-3X (3:1 Ratio)
- Operating Temperature: -55°C to +125°C
- Minimum Recovery Temperature: +85°C (+185°F)
- Fully Shrink Temperature: +115°C (+239°F)
- Maximum Storage Temperature: +50°C (+122°F)
- Flammability: VW-1
- Standard Colors: Yellow, White
Technical Properties
| Property | Test Method | Typical Value |
|---|---|---|
| Operating Temperature | IEC 60216 | -55°C to +125°C |
| Minimum Recovery Temperature | ASTM D 2671 | +85°C |
| Fully Shrink Temperature | ASTM D 2671 | +115°C |
| Flammability | UL 224 | VW-1 (Self-extinguishing) |
| Tensile Strength | ASTM D 2671 | ≥ 10.4 MPa |
| Dielectric Strength | ASTM D 149 | ≥ 15 kV/mm |
| Volume Resistivity | ASTM D 257 | > 1014 Ω·cm |
Dimensions & Specifications
HSID-2X (2:1 Shrink Ratio)
| Product Number | Expanded As Supplied (mm) | Recovered After Heating (mm) | |||
|---|---|---|---|---|---|
| Inside Diameter | Flat Width | Double Wall Thickness | Inside Diameter | Single Wall Thickness | |
| HSID-2X-1.6 | 2.00±0.20 | 3.7±0.3 | 0.48±0.10 | ≤0.79 | 0.45±0.06 |
| HSID-2X-2.4 | 2.79±0.20 | 5.0±0.3 | 0.48±0.10 | ≤1.18 | 0.49±0.06 |
| HSID-2X-3.2 | 3.64±0.23 | 6.3±0.4 | 0.48±0.10 | ≤1.59 | 0.51±0.06 |
| HSID-2X-4.8 | 5.26±0.25 | 8.9±0.4 | 0.49±0.10 | ≤2.36 | 0.54±0.06 |
| HSID-2X-6.4 | 6.92±0.28 | 11.5±0.4 | 0.50±0.10 | ≤3.18 | 0.56±0.06 |
| HSID-2X-9.5 | 10.2±0.32 | 16.7±0.5 | 0.51±0.11 | ≤4.75 | 0.59±0.06 |
| HSID-2X-12.7 | 13.5±0.36 | 21.8±0.6 | 0.52±0.11 | ≤6.35 | 0.60±0.07 |
| HSID-2X-19.1 | 20.1±0.40 | 32.2±0.6 | 0.53±0.11 | ≤9.53 | 0.62±0.07 |
| HSID-2X-25.4 | 26.7±0.45 | 42.5±0.7 | 0.55±0.12 | ≤12.7 | 0.63±0.07 |
| HSID-2X-38.0 | 39.8±0.51 | 63.2±0.8 | 0.57±0.12 | ≤19.1 | 0.64±0.07 |
| HSID-2X-51.0 | 53.0±0.56 | 83.9±0.9 | 0.58±0.13 | ≤25.4 | 0.64±0.08 |
| HSID-2X-76.0 | 79.4±0.56 | 125.3±1.0 | 0.59±0.13 | ≤38.1 | 0.64±0.09 |
HSID-3X (3:1 Shrink Ratio)
| Product Number | Expanded As Supplied (mm) | Recovered After Heating (mm) | |||
|---|---|---|---|---|---|
| Inside Diameter | Flat Width | Double Wall Thickness | Inside Diameter | Single Wall Thickness | |
| HSID-3X-1.6 | 2.00±0.20 | 3.7±0.3 | 0.47±0.10 | ≤0.53 | 0.52±0.06 |
| HSID-3X-2.4 | 2.79±0.20 | 5.0±0.3 | 0.47±0.10 | ≤0.79 | 0.57±0.06 |
| HSID-3X-3.2 | 3.64±0.23 | 6.3±0.4 | 0.48±0.10 | ≤1.06 | 0.61±0.06 |
| HSID-3X-4.8 | 5.26±0.25 | 8.9±0.4 | 0.49±0.10 | ≤1.59 | 0.67±0.06 |
| HSID-3X-6.4 | 6.92±0.28 | 11.5±0.4 | 0.50±0.10 | ≤2.36 | 0.71±0.06 |
| HSID-3X-9.5 | 10.2±0.32 | 16.7±0.5 | 0.52±0.11 | ≤3.18 | 0.77±0.06 |
| HSID-3X-12.7 | 13.5±0.36 | 21.8±0.6 | 0.53±0.11 | ≤4.75 | 0.80±0.07 |
| HSID-3X-19.1 | 20.1±0.40 | 32.2±0.6 | 0.55±0.11 | ≤6.35 | 0.84±0.07 |
| HSID-3X-25.4 | 26.7±0.45 | 42.5±0.7 | 0.56±0.12 | ≤8.47 | 0.86±0.07 |
| HSID-3X-38.0 | 39.8±0.51 | 63.2±0.8 | 0.57±0.12 | ≤12.9 | 0.89±0.07 |
| HSID-3X-51.0 | 53.0±0.56 | 83.9±0.9 | 0.57±0.10 | ≤17.2 | 0.90±0.08 |
| HSID-3X-76.0 | 79.4±0.56 | 125.3±1.0 | 0.57±0.13 | ≤25.8 | 0.92±0.09 |
Packing Options & Ordering Guide
When placing your order for HSID tubing, please specify your preferred packing type to ensure it matches your production line requirements:
- T Type (Pre-cut & Connected): The tubing is precision-cut into standard 55mm lengths, adhered together in a continuous line, and packed in a roll. This format is highly recommended for high-volume, automated thermal transfer printing and application, as it allows for seamless feeding through printers and applicators.
- R Type (Continuous Roll): The tubing is supplied as a continuous, uncut roll. This option is ideal for customers who require custom cutting lengths, manual application, or specific project-based measurements.
Frequently Asked Questions (FAQ)
Q: What is the difference between HSID-2X and HSID-3X?
A: The primary difference is the shrink ratio. HSID-2X has a 2:1 shrink ratio, meaning it shrinks to half its expanded diameter. HSID-3X has a 3:1 shrink ratio, allowing it to fit over larger connectors or irregular shapes and shrink down to a much smaller wire diameter, offering greater versatility for complex harnesses.
Q: Do you offer halogen-free identification tubing for strict environmental projects?
A: Yes, we understand the importance of low-smoke, zero-halogen requirements in public transport and aerospace. In addition to our standard RoHS compliant military-grade material, we can supply HSID made from halogen-free heat shrink material upon request to meet your specific environmental and safety standards.
Q: What is the best way to print on HSID tubing?
A: HSID tubing is optimized for thermal transfer printing using standard ribbon printers (like Brady or Brother industrial printers). For the best results, ensure the tubing is fully expanded and flat during printing, and allow the ink to cure completely before applying heat to shrink it onto the wire.
Q: Can HSID be used in high-temperature environments like engine bays?
A: Absolutely. With a continuous operating temperature rating of +135°C (+275°F) and a fully shrink temperature of +115°C, HSID is highly resistant to heat and will not degrade or lose its printed markings in high-temperature automotive or aerospace applications.
Q: If I need both wire identification and abrasion protection for my harness, what do you recommend?
A: For applications requiring both clear identification and heavy-duty mechanical protection, we recommend sliding the HSID over the wire first, and then covering the entire bundle with our PET Expandable Braided Sleeving. This combination provides permanent legibility while protecting the harness from cuts, abrasion, and UV exposure.