Silicone Rubber Insulating Washer for Electrical Applications
Our silicone rubber insulating washers offer superior electrical insulation, high thermal stability, and flexibility. Ideal for use in power supplies, circuit boards, and electrical enclosures requiring non-conductive isolation.
Key Selling Points
- Material: Silicone rubber (VMQ) with dielectric strength >20 kV/mm, suitable for high-voltage insulation.
- Temperature Tolerance: Withstands -60°C to +230°C, making it ideal for thermal cycling.
- Medical Grade Option: Medical grade silicone available for healthcare devices.
- Customization: Hardness, dimensions, color, and compounds to meet UL or FDA requirements.
Technical Specifications
| Material | Silicone Rubber (VMQ) |
| Hardness Range | Shore A 30–80 (custom) |
| Dielectric Strength | >20 kV/mm |
| Temperature Range | -60°C to +230°C |
| Custom Dimensions | ID, OD, thickness per drawing |
Models and Options
Type: Insulating Washer. Available in general-purpose silicone or medical grade silicone.
Materials and Structure
Silicone rubber with high purity. Solid washer, optionally with anti-track features.
Applications
- Electrical: transformer insulation, PCB mounting
- Electronics: battery pack isolation
- Medical: device insulation where biocompatibility is required
Customization
Hardness, dimensions, color, silicone grade (standard/medical).
FAQ
Is silicone rubber flame resistant?
Silicone is inherently flame retardant and self-extinguishing.
Can you provide medical grade silicone?
Yes, we offer medical grade silicone rubber suitable for biocompatible applications.
What is the maximum continuous temperature?
Up to 230°C continuously, with short-term peaks higher.
Do you have UL certification?
Not specified, but we comply with relevant standards per customer request.
Inquiry Information
Contact Tommy Liu or Victor Hang: tommyliu@longrunrubber.com / hang@longrunrubber.com. Tel/WhatsApp: +86 13006697998.
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- Main image: insulating-washer-silicone-electrical.png - Alt: "Silicone rubber insulating washer for electrical insulation applications"
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