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As a dedicated manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. specializes in producing high-performance electrical insulation solutions. Our Heat Shrinkable Sleeving 2:1 is engineered specifically for the demanding environment of automotive wiring applications. This product is designed to provide reliable protection, organization, and strain relief for wire harnesses, contributing to the longevity and safety of automotive electrical systems. With our commitment to quality and a robust export portfolio, we supply this essential component to markets worldwide, ensuring our partners receive durable and consistent performance.
This heat shrink sleeving offers superior insulation and mechanical protection. Its primary function is to form a tight, conformal seal around wires and connections when heated, safeguarding against abrasion, moisture, chemicals, and short circuits. For automotive manufacturers and aftermarket service providers, this translates into enhanced wiring harness durability, reduced failure rates, and simplified assembly processes.
- High-Quality Material: Manufactured from premium polyolefin or cross-linked PVC formulations, ensuring excellent electrical properties, flexibility, and long-term stability.
- Optimal Shrink Ratio: The 2:1 shrink ratio provides a significant reduction in diameter, allowing it to fit tightly over connectors and splices of varying sizes, creating a secure seal.
- Wide Temperature Tolerance: Performs reliably in a broad temperature range from -55°C to 135°C, suitable for under-hood and interior automotive applications.
- Flame Retardancy: The material is compliant with UL224 VW-1 flame retardant standards, a critical safety feature for automotive wiring to prevent the spread of fire.
- Environmental Resistance: Offers strong resistance to oils, fuels, solvents, and other automotive fluids, protecting wires from corrosion and degradation.
- Color Coding & Identification: Available in standard black and optional colors, facilitating easy wire identification and harness organization during assembly and maintenance.
The technical specifications of our Heat Shrinkable Sleeving are detailed to help you select the correct product for your application. Below is a summary of key parameters:
| Property | Typical Value / Description |
| Shrink Ratio | 2:1 |
| Recovered Wall Thickness | Approx. 0.8mm - 1.5mm (varies by size) |
| Tensile Strength | ≥ 10.4 MPa |
| Elongation at Break | ≥ 200% |
| Dielectric Strength | ≥ 15 kV/mm |
| Volume Resistivity | ≥ 1 x 10^14 Ω·cm |
The benefits for your business are clear. Using our heat shrink sleeving can lead to a more robust final product, potentially lowering warranty claims related to electrical failures. It streamlines the production line by providing a clean, professional finish to wire harnesses. Furthermore, its protective qualities help extend the service life of automotive electrical components, which is a valuable selling point for vehicle manufacturers.
Jinhua Dika Electrical Equipment operates with a strong foundation in quality management, as reflected in our adherence to international standards. Our annual export value of US$1 Million to US$1.5 Million and our presence in major global markets including North America, Europe, and Southeast Asia demonstrate our reliability as a supplier. We ship from key ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring efficient logistics. Our product is manufactured in a facility that operates under stringent quality control systems, providing you with the confidence that every roll of sleeving meets consistent performance criteria. Choose our Heat Shrinkable Sleeving 2:1 to add a layer of proven protection and professionalism to your automotive wiring projects. Contact us today to discuss your specifications or to request samples.
Frequently Asked Questions (FAQ)
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What does a 2:1 shrink ratio mean?
It means the sleeving will shrink to approximately half of its supplied inner diameter when heated. For example, a 10mm sleeving will shrink down to fit a 5mm diameter bundle tightly. -
What heat source should I use for installation?
A hot air gun is commonly recommended. Open flames are not advised as they can damage the material or cause uneven shrinking. The typical activation temperature is around 120°C. -
Is this sleeving suitable for high-voltage applications?
With a dielectric strength of ≥ 15 kV/mm, it provides good electrical insulation for low to medium voltage automotive wiring. For specific high-voltage applications (e.g., EV systems), please consult us for specialized grades. -
Can it withstand under-hood engine compartment temperatures?
Yes. The operating temperature range of -55°C to 135°C covers most under-hood environments. For areas near exhaust manifolds with higher radiant heat, please inquire about high-temperature options. -
Do you offer different colors for wire identification?
Yes. While black is the standard, custom colors are available upon request to facilitate circuit identification and harness organization. -
What is the shelf life of this product?
When stored in its original packaging in a cool, dry place away from direct sunlight, the sleeving has a shelf life of several years without significant degradation of its properties. -
Can you supply custom lengths or diameters?
Absolutely. We offer customization for inner diameter (pre-shrink size), wall thickness, length per roll, and packaging to meet your specific production line requirements. -
Is the material halogen-free?
Our standard polyolefin-based sleeving is halogen-free. If this is a critical requirement for your project, please specify when requesting a quote.
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