Silicone O-Ring Seal – High-Performance VMQ / PVMQ / MQ Sealing Solutions
Product Introduction
A silicone O-ring seal is a circular sealing ring made from high-quality silicone rubber (VMQ, MQ, PVMQ). Known for its excellent elasticity, temperature stability, and resistance to aging, UV, and chemicals, silicone O-rings are widely used in industries that demand long-lasting, leak-proof performance.
At Xiamen Jinshun Sealing Technology Co., Ltd., we manufacture custom and standard silicone O-rings with durometers from Shore A 15 to 90, available in any size and color to fit your application. Whether you need small precision O-rings or large-diameter silicone O-rings, our engineering team ensures reliable sealing under extreme working conditions.
Why Silicone O-Ring Seals Matter
Silicone O-rings are trusted across industries because they offer:
- Wide Temperature Range: Typically –60°C to +230°C (PVMQ can go even higher)
- Excellent flexibility even in low-temperature environments
- Strong resistance to ozone, UV, and weathering
- Safe for food, medical, and potable water applications
- Stable sealing performance for long-term use
Their simple torus-shaped design compresses evenly inside a groove, creating a strong barrier against liquids and gases. This makes silicone O-rings ideal for working environments where leakage control is critical.
Applications of Silicone O-Ring Seals
Automotive
Used in engines, coolant systems, EV battery components, and fuel assemblies for stable fluid sealing.
Aerospace
VMQ silicone O-rings help maintain pressure integrity in hydraulic and pneumatic systems.
Medical & Healthcare
Biocompatible silicone O-rings are used in medical instruments, pumps, respirators, and diagnostic devices.
Home Appliances & Plumbing
Ensures leak-free performance in water purifiers, faucets, coffee machines, and sanitary fittings.
Industrial Equipment
Protects machinery by preventing oil, grease, and chemical leaks in pumps, compressors, and valves.
Electrical & Electronics
Silicone O-rings resist moisture and contamination, safeguarding sensitive electrical components.
Technical Specifications
| Item | Details |
|---|---|
| Material | Silicone (VMQ, MQ, PVMQ), NBR, HNBR, FKM, EPDM optional |
| Durometer | Shore A 15–90 |
| Temperature Resistance | –60°C to +230°C (depending on silicone type) |
| Size | Fully customizable |
| Color | Any color available |
| MOQ | 50 pcs |
| Sample Time | Existing samples: 1 day; Customized: 7–10 days |
| Production Time | 12–18 days after sample approval |
| Packaging | PE bag/OPP bag/Color box/PET box (customizable) |
| OEM/ODM | Fully supported |
| Certifications | NSF, ACS, KTW, W270, WRAS, FDA, UL, ISO9001, ISO14001 |
| Port | Xiamen |
| Payment | T/T |
| Shipping | FOB, CIF, Express (DHL/FedEx/UPS) |
Certification & Quality Assurance
We follow strict production and testing standards to ensure every O-ring performs reliably. Our silicone O-rings comply with international quality certifications such as:
- NSF / ACS / KTW / W270 for drinking water systems
- FDA for food and medical applications
- UL for electrical safety
- ISO9001 / ISO14001 certified management
With 22 years of R&D experience, advanced tooling, and strict QC with 15 inspectors, we guarantee stable quality and fast delivery.
Why Choose Xiamen Jinshun Sealing?
✔ 22+ years of experience in sealing technology
✔ Support for OEM/ODM and flexible customization
✔ Small order quantity accepted (MOQ 50 pcs)
✔ Wide range of elastomers for different industries
✔ 150 skilled workers and a strong QC team
✔ Consistent product quality backed by international certifications
✔ Competitive factory pricing for distributors and large-volume buyers
FAQs
1. Do you offer quality control?
Yes. We have a dedicated QC team of 15 inspectors to ensure every batch meets our standards.
2. Do you provide after-sales service?
Absolutely. We assist with any technical or product issues and respond quickly to customer requests.
3. What is your minimum order quantity?
The MOQ for silicone O-rings is 50 pieces, suitable for both small and large buyers.
4. Can you customise colour, size, or hardness?
Yes. All O-rings can be customised based on size, hardness, colour, and material.
5. How long does it take for production?
Standard production time is 12–18 days after sample confirmation.
6. Do you support OEM/ODM projects?
Yes, our engineering team has over 22 years of experience supporting ODM and private-label projects.
Looking for a reliable silicone O-ring manufacturer?
Xiamen Jinshun Sealing Technology Co., Ltd. offers high-quality silicone O-ring seals tailored to your needs.
Whether you're a distributor, OEM brand, or industrial buyer, we provide competitive pricing and fast delivery.
👉 Contact us now for samples or a free quotation!
(We reply within 12 hours.)
