The national standard high-flexibility extra-soft silicone wire is an extra-soft conductor made of imported silicone rubber material. It has a smooth and soft surface, high strength, and meets national standard requirements. Its superior flexibility and high-temperature resistance make it perform excellently in complex wiring environments. Product features: high softness, easy to bend and route, suitable for narrow spaces; excellent high-temperature resistance, with a long-term working temperature up to 200℃; good electrical insulation performance, high voltage resistance level, safe and reliable; stable chemical properties, resistant to acid, alkali, aging, and oil; long service life, not easy to crack, low maintenance cost. Technical parameters: Rated temperature: -60℃~+200℃; Rated voltage: 600V; Conductor: stranded tinned copper wire; Insulation: silicone rubber; Color: multiple options (customization supported). Application scenarios: Widely used in internal connection wires for electronic and electrical appliances, new energy vehicle wiring harnesses, lighting fixtures, motor lead wires, equipment in high-temperature environments, etc., meeting high-end industrial and civil needs.
Technical Specifications
| Wire Gauge | 18AWG |
| Rated Voltage | 600V |
| Rated Current | 16A |
| Temperature Range | -60℃~200℃ |
| Insulation Material | Silicone Rubber |
| Conductor Material | Tinned Copper Wire |
| Bending Radius | ≥5 times wire diameter |
Product Features
- High flexibility, suitable for frequent bending applications
- High-temperature resistance, long-term working temperature up to 200℃
- Excellent insulation performance, passed high voltage test
- Flame retardant rating VW-1, safe and reliable
- Oil, acid, and alkali resistant, suitable for harsh environments
- Customizable terminal types and harness lengths
Application Scenarios
- Home Appliances and Consumer Electronics
Custom power cords, signal wires, and ribbon cables, meeting ROHS/REACH environmental standards, suitable for white goods and small appliances. - Automotive Electronics and New Energy
Automotive wiring harnesses, sensor harnesses, high-voltage connection harnesses, certified under TS16949 quality system, high-temperature and vibration resistant. - Industrial Automation and Equipment
Robot harnesses, servo motor harnesses, drag chain cables, high flexibility and bending resistance, suitable for complex industrial environments. - Medical Device Harnesses
Medical-grade harness customization, biocompatible materials, precision terminal crimping, suitable for monitors, ultrasound equipment, etc.
Frequently Asked Questions
What is the difference between silicone wire and PVC wire? Which is more suitable for high-temperature environments?
Silicone wire has a temperature range of -60℃~200℃, while PVC wire is typically only -20℃~105℃. In high-temperature environments (such as car engine bays, industrial equipment interiors), silicone wire has significant advantages: the insulation layer will not soften or deform, and it has a longer service life. Additionally, silicone wire is softer and has better flame retardancy (meets UL VW-1/FT2 standards), but it costs about 30-50% more than PVC wire. Selection basis: Scenarios with continuous operating temperatures exceeding 105℃ must use silicone wire.
What is the minimum bending radius of extra-soft silicone wire? Can it be routed in tight spaces?
The bending radius of this extra-soft silicone wire is ≥5 times the wire diameter (approx. 2.5mm for 18AWG), much smaller than the 10 times wire diameter requirement for ordinary PVC wire. Due to its stranded structure using multiple ultra-fine tinned copper wires (0.08mm grade), the silicone wire has excellent flexibility and can be flexibly routed in tight spaces such as mobile phones, sensors, car door panels, and LED lights, and is not prone to core breakage even with frequent bending.
What equipment is the 600V rated voltage silicone wire suitable for?
600V rated voltage silicone wire is suitable for industrial automation equipment (PLC control cabinets, servo motors), new energy vehicles (internal battery pack connections, charging gun harnesses), photovoltaic inverters, high-power LED lighting, internal wiring of medical equipment, etc. This voltage rating meets the needs of most industrial and commercial applications, far exceeding the standard for household appliances (typically 300V).
What is the difference between stranded tinned copper wire and bare copper wire? Which has better conductivity?
Tinned copper wire has a tin coating on the surface of bare copper wire. In terms of conductivity: bare copper wire has a conductivity of about 101% IACS, while tinned copper wire is about 98% IACS, a very small difference (only about 3%). However, the advantages of tinned copper wire are: 3-5 times better oxidation resistance, better solderability (fewer issues with tin not adhering), and significantly improved corrosion resistance. For high-reliability applications such as new energy vehicles and outdoor equipment, tinned copper wire is recommended.
Does the silicone wire have UL/CE certification? Can certification certificates be provided?
This high-flexibility extra-soft silicone wire is certified to UL 758 (USA) and CE (EU) standards, and complies with RoHS environmental and REACH regulations. The UL certification number is traceable, and CE declaration documents are complete. For bulk purchases, a copy of the UL certification, Material Data Sheet (MDS), and SGS environmental test report can be provided simultaneously, ensuring smooth export customs clearance and customer factory audits.
Why is silicone wire chosen for new energy vehicle wiring harnesses?
Components such as the battery pack, motor controller, and charging interface of new energy vehicles (EV/HEV) can reach operating temperatures of 150℃ and operate in high-voltage (600V+) and vibration environments. With its 200℃ temperature resistance, 600V voltage resistance, softness, vibration resistance, and self-extinguishing flame retardancy, silicone wire has become the standard choice for high-voltage wiring harnesses in new energy vehicles. Major new energy vehicle manufacturers (BYD, Tesla, NIO, etc.) widely use silicone wire in their high-voltage connection systems.
What is the minimum order quantity for custom silicone wire? How are sampling fees calculated?
The minimum order quantity (MOQ) for standard products is 1000 meters per specification; for simple customizations like color or printing, the MOQ can be as low as 500 meters. For first-time cooperation, sampling can be arranged: sample length 1-5 meters, sampling fee 200-500 yuan (including UL certification label). The sampling fee will be refunded on the bulk order after the sample is approved. The delivery time for bulk orders is typically 7-15 working days (depending on quantity and complexity).
What is the standard insulation thickness for silicone wire? Does it comply with ROHS/REACH?
The insulation thickness of this silicone wire strictly follows the UL 758 standard: the nominal insulation thickness for 18AWG is 0.76mm (30mil), with a minimum thickness of no less than 0.61mm (24mil). All series materials have passed RoHS 10-item testing and REACH 235 SVHC screening, and do not contain harmful substances (lead, mercury, cadmium, hexavalent chromium, etc.). Third-party test reports can be provided.
Will silicone wire age during long-term outdoor use? How is its UV resistance?
Silicone rubber material itself has excellent UV and ozone resistance. In direct outdoor sunlight, the service life of silicone wire can reach over 10 years, far superior to PVC (which typically cracks within 2-3 years). However, it should be noted: for long-term outdoor use, black or white silicone wire (with more color stabilizers added) is recommended, and direct contact of the cable with chemical solvents should be avoided.
What is the difference between silicone wire and Teflon (PTFE) wire? How is the cost-effectiveness?
Both silicone wire and Teflon wire are high-temperature wires: Teflon can withstand temperatures up to 250-300℃, but it is hard, has poor flexibility, and costs 2-3 times more than silicone wire; silicone wire withstands 200℃, has excellent flexibility, and is moderately priced. For most industrial applications (temperature requirements ≤200℃), the cost-effectiveness of silicone wire is far higher than Teflon wire. Teflon wire is only recommended when contacting high-temperature soldering irons during welding or when an extremely thin insulation layer is required.
How to judge the quality of silicone wire? What is the simplest identification method?
3 methods to quickly identify silicone wire quality:
(1) Burn test——High-quality silicone wire produces white powder (silica) after burning, while inferior wire produces black smoke and drips (PVC adulteration)
(2) Bend test——After 100 repeated bends, high-quality silicone wire shows no cracks on the surface
(3) Temperature resistance test——Use the outer flame of a lighter to burn for 3 seconds; high-quality silicone wire does not burn, and the insulation layer does not deform
It is recommended to request samples for quality confirmation before bulk purchasing.
Can the color of silicone wire be customized? What are the commonly stocked colors?
Custom colors are available. Typically, providing a Pantone code or color swatch is sufficient for color matching. Common stock colors: Black, White, Red, Blue, Yellow, Green (24-48 hour shipping). MOQ for custom colors depends on specifications (usually 1000 meters minimum), with delivery extended by 3-5 working days. Printing/Logo service: Model numbers, logos, certification marks, etc., can be printed on the cable surface as required, supporting both thermal transfer and inkjet printing processes.
What is the delivery time for silicone wire harness processing? How are rush orders handled?
Standard delivery: Sample orders are shipped in 2-3 working days; batch orders take 7-15 working days (depending on quantity and process complexity). Rush orders: Can be arranged for priority production, with a rush fee of 15% of the total order value, reducing delivery time to 3-5 working days. Urgent samples can be delivered the same day or next day via SF Express. Orders involving complex processes such as special terminal crimping or injection molding require separate evaluation.
Can silicone wires be used for outdoor waterproof connections? What additional components are needed?
Silicone wire itself is water-resistant (the insulation layer does not absorb water), but for direct exposure to humid environments, it is recommended to use waterproof connectors (e.g., IP67/IP68 rated connectors) or add waterproof heat shrink tubing. For long-term fixed outdoor wiring, it is advisable to add PVC or PE protective sleeves for enhanced mechanical protection. Using silicone wire in conjunction with silicone seals enables long-term underwater connections (e.g., LED underwater lights, wastewater treatment equipment).
Are there price discounts for bulk purchases of silicone wire? How are tiered prices calculated?
Bulk purchases enjoy tiered pricing: 1000-3000 meters (standard price), 3000-10000 meters (discounted price, approx. 10% off), over 10000 meters (special price, approx. 15-20% off, negotiable based on specifications). Annual framework agreement: Signing an annual purchase agreement locks in the best price and provides value-added services such as priority production scheduling, free samples, and technical support. Large-volume purchases can arrange factory inspection to ensure shipment quality.
