Insulated Silicone Protective Sleeve
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. Our silicone sleeve is appropriate for insulation protection up to 35kV, and it is also a flame retardant of UL94 V0 level.
2. Thermal resistant silicone sleeve is produced from a super elastic and tear-resistant material which characteristically resists the effects of vibration, wear and water vapour and dust erosions.
3. To meet the demands on diverse sophisticated electricity systems, we can change the sizes, hardness, colors, and structural designs.
It is not unusual to find a situation where protective sleeves have either slipped off or partially moved from the intended position after installation, particularly in environments that have complicated electrical systems such as power distribution cabinets or vibrating equipment outdoors
Hard protective sleeves or even those of materials with little elasticity get loosened mainly due to equipment vibrating all the time causing them to come off easily, expansion and contraction of materials due to changes of temperature or disassembling and assembling the equipment multiple times. In most cases, these loosening result in the production of tiny holes which permit water and dust to sneak in or worst still completely disengage the sleeve thereby impacting insulation safety and operational reliability directly.
So we thought of the mixture and the design to solve the problem. We use a silicone rubber with high resilience that doesn't get deformation after a long period of use (the rate of deformation is less than 30%), so the piece will be nice and tight even after being used for a long time or changing the temperature. Thanks to the material, it is possible to install the piece multiple times without worrying about damaging it, while the split/snap-fit design offers great installation and firm holding, thus giving extra time between maintenance.
Introduction to the Silicone Sleeve:
This product is made from high-insulation silicone rubber. The manufacturing methods are integrated molding or precision extrusion. It can keep the dielectric strength constant when the changes of temperature are very quick. Thus, it acts as a barrier for the electrical connectors, terminals, and metal fasteners. Besides that, it is able to resist external forces such as impacts and abrasion and at the same time, it prevents moisture, dust, and other environmental contaminants from entering. This, in turn, guarantees the equipment's safe operation.
Specific specifications are as follows:
| Item | Specification |
| Material | High Insulation Performance Silicone Rubber |
| Inner Diameter | Standard 1mm-200mm, Non-standard Customizable) |
| Thickness | Standard 0.5mm-3mm, Non-standard Customizable |
| Hardness | Shore A 40-60, Customizable |
| Compression Set | ≤30% at 100℃×22h |
| Voltage Range | 0.6kV~35kV |
| Temperature Range | -60℃~220℃ |
| Color | Solid Colors or Other Colors, Customizable |
| Shape | Customizable Special-Shaped Snap-On, Open-Type, Fully-Enclosed Protective Sleeves |
| Certification | ISO9001、AS9100D、RoHS2.0 |
| Dielectric Strength | 15~30kV/mm, Depending on Thickness |
| Insulation Resistance | 10¹⁴–10¹⁶ Ω·cm |
| Protection Rating | IP67, Depending on Structural Design |
| Flame Retardancy Rating | UL94 V-0 Rating |
| Weather Resistance | Excellent UV Resistance |
| Mainstream Styles | Terminal Protective Boots, Screw Insulating Caps, Cable End Protectors, Rubber Cover Guards, Corrugated Silicone Sleeves, Custom-Shaped Electrical Component Covers, Battery Terminal Insulating Covers, Switch Dust-Proof Insulating Covers, Flexible Hose-Type Insulating Tubing |
| Applicable Media | Suitable for Air (Including High-Humidity Environments), Water (Fresh Water, Domestic Water), Weak Acids and Alkalis, Neutral Salt Spray, and General Non-Corrosive Oils |
Commonly Used Thermal Resistant Silicone Sleeves Can Be Categorized into the Following Four Types.
1. General purpose insulating silicone: Good for insulation on regular electrical appliances and components under low voltage; extremely economical.
2. Flame-retardant insulating silicone: UL94 V-0 compliant for flame retardance; primarily used for equipment with strict fire protection standards, e.g., power distribution cabinets and high voltage electrical devices.
3. Thickened and reinforced silicone: Has thicker wall and reinforcement at structural level to withstand wear and tear; intended for equipment that vibrates frequently and components exposed to outdoor environments, which are able to resist mechanical stress and adverse weather conditions.
4. Modified silicone with voltage resistance: It is specially tailored for working in a strong electric field environment such as the place of voltage terminals and the fitting place of power supply connections, and it can help maintain reliable and durable operation of the equipment.
Key Advantages of Silicone Sleeves.
1. Electrical Insulation and Stability in Extreme Environments.
We produce heat-resistant silicone covers through an intricate process using top-quality insulating silicone rubber. They possess excellent dielectric resistance ranging from 1014 to 1016 Ω·cm. These products are ideal for insulative barrier purposes up to the level of 35 kilovolt application, where they efficiently block the flow of electricity and eliminate electrical leakage and short circuit risks.
They don't get inflexible or broken when the temperature goes from -60°C up to 220°C without any issues. Besides this, they have UL94 V-0 fire retardant capabilities, plus they can resist arc and ozone. It means this kind of electric insulation barrier is a very good long-time choice, even when exposed outdoors for a long time or in places with demanding conditions like high humidity and salt spray environments.
2. Mechanical Protection and Snug-Fit Design.
Besides great softness and high stretchability, our silicone heat resistance sleeves have the ability to be tightly wrapped around different shapes of wires terminals, screws, raised parts of hardware, etc. These products also come in thick or super-strength versions that provide a very high level of resistance to abrasion, tearing, and injuring parts of metal subject to operations of impact, vibration, and friction. This makes such items a perfect choice for heavily-vibrating equipment and parts of a unit seen externally.
3. Environmental Resistance and Ease of Maintenance.
The silicone heat resistant sleeve together with a carefully thought-out structure can efficiently prevent the penetration of moisture and dust, resulting in a significant decrease in circuit failures. Thanks to its flexible shape, it can be installed and uninstalled over and over again without the protective capability being weakened, thus it is easier to carry out regular maintenance and replacement.
4. Flexible Customization and Broad Applicability.
A silicone heat resistant sleeve can be completely customized from the inner diameter, wall thickness, and hardness to the flame-retardant ratings and color, while also offering the possibility to create unusual layouts such as snap-fit, open-style, or fully enclosed designs. Due to its flexibility, this product can be used in high and low voltage electrical equipment, new energy electronics, automotive circuitry, and industrial control systems, and thus can meet various insulation and protection requirements of different applications.
Which Industries Use Silicone Heat Resistant Sleeves?
Our products can be used for various high and low-voltage electrical equipments, power distribution, and control systems, M&c motor and wiring harness assemblies, new energy electronic devices, automotive circuits and industrial automation equipments. Besides these, they also provide insulation and mechanical protection to the internal home appliance wiring, instrument terminals, and a variety of electrical connectors.
Thanks to excellent insulation properties and its ability to maintain stability over a wide temperature range, a thermal resistant silicone sleeve acts as a very effective barrier for electrical connection points, thus preventing leakage and short circuits. Besides, its flexible and weather-resistant nature can endure vibrations, abrasions, and even corrosive atmospheres, thereby reducing the failure rates of circuits under harsh conditions and at the same time guaranteeing the long-term, dependable operation of the equipment.
Introduction to Yida Rubber.
Our company was established in 2006 and has many years of experience, including operating a factory of 37,000 m2 that is home to a workforce of more than 450 employees. We produce more than 2 billion units every year and our rubber material production capacity exceeds 300 tons per month. Additionally, our products consist of both molded parts and extruded profiles.
We strictly adhere to international management systems—including ISO 9001, ISO 14001, and IATF 16949—and hold CNAS laboratory accreditation, ensuring quality control throughout the entire process from raw materials to finished products. Regarding technical specifications and compliance, we offer a diverse range of material formulations that are UL and FDA certified, while also meeting environmental and safety standards such as EN549, RoHS 2.0, and REACH.
Service Model.
Our tailor-made service model is very flexible and efficient: if you place an order for standard-sized products, our team will deliver them within the 15 days after the order confirmation. We can do land, sea, and air transport and use secure packaging—a mix of resealable bags with outer cartons. Also, we give free samples (though shipping cost is charged to the customer), and our bulk discount prices are designed to give customers an initial product evaluation and at the same time to ensure cost savings in the future.
Partnerships and Global Market Presence.
Our items are applied in the high-voltage wire harness field for new energy vehicles and supply main markets such as the United States, Japan, South Korea, UK, Southeast Asia, and Europe. We have build long-term strategic alliance with global brands like SMC, Omron, Siemens, Eppendorf, and ALPINE. Besides, receiving the "Excellent Supplier of the Year" award from SMC for 2023 is a powerful statement of our product qualities and our commitment to reliable delivery in the area of precision manufacturing.
Exhibition Event: The 27th Dalian International Industrial Fair.
We rely on more than 20 years of technological knowledge and a database of over 1,000 materials formulations, so at this UFI-certified industrial exhibition, we displayed our entire range of capabilities-from CNAS-accredited testing to accurate intelligent manufacturing and quality control of the whole process.
We are ready to offer "import-substitution" technology, and we managed to attract the attention of high-end buyers from Japan, South Korea, Russia, and the Yangtze River Delta who admired the core value of our precision rubber seals in the industrial supply chain.
FAQ:
1. Are silicone sleeves easy to install? Does removal and reinstallation affect their protective performance?
Open-type and snap-on structures are made for easy installation. They let you quickly install the device without disconnecting the cables or dismantling the equipment. Because silicone rubber has great resilience and is highly resistant to compression set, these sleeves can be taken off and put on again many times without any change in their form or sealing performance.
2. What is the service life of thermal silicone sleeves? How do I determine when replacement is necessary?
Service life will vary with different environmental and operation factors such as temperature, voltage, ultraviolet exposure, mechanical restraints, and so on. We cannot, therefore, give you a definite figure. We advise that if the inspection reveals that the sleeve is seriously damaged, hardened, surface chalking, cracking, or deforming to an extent that it cannot be restored by repair methods, it should be replaced immediately.
3. Can you assist us in selecting the right material for specific application scenarios?
Absolutely. Leveraging 30+ years of experience, we have developed strong ties with leading universities and research centers for joint development of cutting-edge materials. We will assist you in choosing the best material option in line with your particular needs while keeping material prices at a reasonable level.
