Silicone O-Ring – Flexible, Food-Safe & Heat-Resistant Seals
- 0 MOQ
- 3 DAYS DELIVERY
- 100% customer repurchase rate
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Silicone O-Ring – Flexible, Food-Safe & Heat-Resistant Seals
Silicone O-Rings are the perfect choice for applications requiring flexibility, high temperature resistance, and food safety compliance. Whether used in food processing equipment, medical devices, or high-heat sealing environments, they deliver consistent performance and durability.
Product Details
| Material | Silicone Rubber (VMQ – Vinyl Methyl Silicone) |
|---|---|
| Hardness | 40–80 Shore A |
| Temperature Range | -60°C to +230°C (special grades up to +250°C) |
| Color | Red, white, transparent, black, custom colors available |
| Chemical Resistance | Excellent resistance to weather, ozone, steam, and many chemicals; good dielectric properties |
| Limitations | Not recommended for petroleum oils, fuels, or concentrated acids |
Why Choose Silicone O-Rings?
Silicone O-Rings (also known as silicone rubber O-rings, heat-resistant seal rings, or FDA silicone O-rings) offer excellent resilience, flexibility, and resistance to extreme temperatures ranging from -60°C to +230°C. They maintain sealing integrity in both low-temperature freezing conditions and high-heat operations.
Key Features
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Wide Temperature Range: Operates from -60°C to +230°C, suitable for extreme environments.
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Food & Medical Grade Options: Available in FDA-approved and platinum-cured silicone for hygienic applications.
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Excellent Flexibility: Maintains elasticity even after long-term use.
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Non-Toxic & Odorless: Safe for food, beverage, and medical sealing applications.
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Color Options: Available in red, white, transparent, and custom colors for industry-specific needs.
Applications
Silicone O-Rings are widely used in:
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Food & Beverage Processing (blenders, coffee machines, dairy equipment)
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Medical & Pharmaceutical Equipment (pumps, sterilization systems, diagnostic devices)
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High-Temperature Sealing (baking ovens, heating elements, industrial dryers)
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Electronics & Lighting (waterproof seals for LED lights and electrical housings)
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Water Filtration Systems
Material Comparison – Silicone vs Other O-Ring Materials
| Material | Temp Range (°C) | Food Grade | Oil Resistance | Flexibility | Cost Level |
|---|---|---|---|---|---|
| Silicone | -60 to +230 | Yes (FDA) | Fair | Excellent | Medium |
| NBR (Buna-N) | -40 to +100 | No* | Excellent | Good | Low |
| FKM (Viton) | -20 to +200 | No* | Excellent | Good | High |
| EPDM | -50 to +150 | Yes (FDA) | Fair | Good | Medium |
* Special grades available for food applications.
Related O-Ring Products
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O-Ring Collection Page – O-Ring Manufacturer
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Guide: O-Ring Seal Guide
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Related Product: EPDM O-Ring
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Related Product: FKM O-Ring
FAQ
Q1: Can Silicone O-Rings be used for hot water sealing?
Yes, silicone performs well in hot water, making it ideal for beverage machines and steam systems.
Q2: Are silicone O-Rings safe for food contact?
Yes, FDA-approved silicone O-rings are safe for direct food and beverage contact.
Q3: How does silicone compare to Viton in high temperatures?
Silicone can handle slightly higher temperatures but offers lower chemical resistance than Viton.
Q4: Are silicone O-Rings suitable for oil sealing?
Silicone is not recommended for heavy oil contact; NBR or Viton would be better.
Q5: Can silicone O-Rings be used in freezing conditions?
Yes, silicone remains flexible and sealing-capable down to -60°C.
Your Trusted Silicone O-Ring Supplier
At Hengoseal, we supply custom and standard silicone O-rings to industries worldwide, ensuring consistent quality, quick delivery, and competitive prices. Whether you need FDA-grade, high-temperature, or custom-colored O-rings, we can meet your needs with no MOQ.
📩 Email: [email protected] | 📞 WhatsApp: +86 17622979498
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