Heat Resistant Silicone O Rings – High-Temperature Sealing Solutions for Demanding Applications
Product Introduction
If your equipment runs hot, your seals must run hotter. Our Heat Resistant Silicone O Rings are engineered to perform reliably in extreme temperature environments, offering long-term stability, elasticity, and chemical resistance that outperform traditional rubber materials.
As a professional China Heat Resistant Silicone O Rings manufacturer and exporter, Xiamen Jinshun Sealing Technology Co., Ltd. supplies OEM/ODM-ready silicone O-rings for global brands across plumbing, filtration, automotive, food-grade appliances, medical devices, and industrial machinery.
With customizable hardness, dimensions, and colors, our silicone O-rings deliver dependable sealing performance whether you need high-temperature resistance, food-contact grade compliance, or precision-engineered rubber components for mass production.
Why Choose Our Heat Resistant Silicone O Rings?
✔ Withstand High Temperatures
- Rated for continuous operation at –50°C to +230°C
- Short-term heat resistance up to 250°C
- Ideal for boilers, heaters, pumps, RO systems, kitchen appliances, and industrial equipment
✔ Flexible Hardness Range
- Available hardness: Shore A 15–90
- Soft to ultra-hard options depending on your sealing needs
✔ Made from Premium Silicone (VMQ, PVMQ)
- Excellent elasticity and compression-set resistance
- Odorless, non-toxic, and optional FDA-grade / food-contact safe
✔ Fully Customizable
- Any size, thickness, cross-section, and shape
- Custom colors including transparent, black, red, blue, and more
- Low MOQ starting from 50 pcs
✔ Fast Sampling & Stable Production
- Existing sample: 1 day
- New mold: ~15 days
- Custom sample: 7–10 days
- Production lead time: 12–18 days after sample approval
✔ Trusted by International Brands
With over 10+ years of manufacturing experience, we support large-volume OEM/ODM projects, precise tolerances, and long-term supply for distributors and industrial buyers.
Product Specifications
| Item | Details |
|---|---|
| Product Name | Heat Resistant Silicone O Rings |
| Material | Silicone (VMQ / PVMQ) |
| Hardness (Shore A) | 15–90 |
| Temperature Range | –50°C to +230°C (short term to 250°C) |
| Color Options | Custom-made |
| Size & Shape | Customizable |
| MOQ | 50 pcs |
| OEM/ODM | Available |
| Packaging | PE bag, OPP bag, PET box, or customized |
| Mold Time | ~15 days |
| Sample Time (Existing) | 1 day |
| Sample Time (Custom) | 7–10 days |
| Production Time | 12–18 days |
| Port | Xiamen, China |
| Payment | T/T |
| Shipping | FOB, CIF, Express, etc. |
Applications of Heat Resistant Silicone O Rings
Our O-rings are designed for industries where high temperature, strong pressure, and long-term sealing reliability are essential:
- Water purifiers & RO membrane systems
- Shower systems & bathroom fittings
- Industrial machinery & pumps
- HVAC equipment
- Food processing equipment
- Automotive components
- Coffee machines, kettles, home appliances
- Medical and laboratory equipment
FAQs About Heat Resistant Silicone O Rings
1. What temperature can your silicone O-rings withstand?
Our heat-resistant silicone O-rings operate from –50°C to +230°C, with short-term resistance up to 250°C.
2. Are your silicone O-rings food-safe?
Yes. We can produce FDA-grade and food-contact compliant silicone O-rings upon request.
3. Can you manufacture custom sizes and hardness?
Absolutely. We support full customization including size, color, hardness (Shore A 15–90), and shape.
4. What is your typical lead time?
- Existing samples: 1 day
- New mold: ~15 days
- Custom sample: 7–10 days
- Production time: 12–18 days after confirming samples
5. Do you support OEM/ODM services?
Yes. We manufacture for many international brands and welcome OEM/ODM cooperation.
6. What is the MOQ?
Our minimum order quantity starts at 50 pcs, suitable for both industrial buyers and distributors.
Partner with China Heat Resistant silicone O-ring manufacturer
Ready to source high-quality Heat Resistant Silicone O Rings directly from a trusted manufacturer?
👉 Contact Xiamen Jinshun Sealing Technology Co., Ltd. today for samples, pricing, or OEM/ODM support.
We help global brands and distributors secure reliable, cost-effective rubber sealing solutions.
