Custom Silicone O Ring Gasket
Custom Silicone Rubber O Ring Supplier
Ultra soft silicone O-ring seal gaskets are specialized sealing components designed for precision sealing applications where high compression compliance, excellent resilience, and gentle mating surface contact are essential.
At Suconvey, we manufacture custom ultra soft silicone O-ring seal gaskets engineered to deliver:
- superior sealing performance
- minimal surface stress
- stable compression recovery
- excellent environmental resistance
Ideal for sensitive equipment, laboratory instrumentation, fluid handling systems, and medical or laboratory grade applications where conventional rubber seals fail to deliver.
Custom Silicone O-Ring Seal
An ultra soft silicone O-ring seal gasket is a circular elastomer seal made from specialized low-hardness silicone compounds. Compared with standard silicone O-rings, the ultra soft variants demonstrate:
✔ significantly lower Shore A hardness (e.g., 5–80)
✔ enhanced surface conformity
✔ improved sealing on uneven or delicate surfaces
✔ reduced friction and wear
✔ excellent dynamic response
These characteristics make ultra soft silicone seals ideal for applications requiring gentle contact, low insertion force, and high sealing integrity under variable loads.
Product Details
Custom Silicone Rubber O Ring Supplier
Key Performance Advantages
Superior Conformability
Ultra soft silicone readily adapts to surface irregularities for enhanced gasket sealing.
Low Compression Set
Even after repeated compression cycles, the material retains elasticity, ensuring consistent sealing performance.
Wide Operational Temperature
Stable performance from -60°C to +200°C, even in thermally cycling systems.
Chemical & Environmental Resistance
Resistant to ozone, UV, moisture, and many common industrial chemicals.
Non-Toxic and Non-Contaminating
Suitable for sensitive environments (laboratory enclosures, fluid paths, and clean equipment).
China Silicone O Ring Sealing Manufacturer
Technical Specifications
| Item | Specification | Notes |
|---|---|---|
| Product | Ultra Soft Silicone O-Ring Seal Gasket | Circular soft sealing gasket |
| Material | Low Hardness Silicone Rubber | Soft elastomer compound |
| Hardness | 5–80 Shore A | Ultra soft range |
| Temperature Range | -60℃ to +200℃ | Application dependent |
| Shape | O-Ring / Custom circular seals | Custom ID and CS |
| Tolerance | ±0.1 mm (typical) | Improved upon request |
Typical Applications
Silicone O-ring seal gaskets are widely used in:
- Fluid transfer and metering systems
- Medical & laboratory equipment
- Instrumentation and sensor housings
- Pneumatic feedthrough seals
- Vacuum and low-pressure sealing
- Small-bore valve sealing
- Precision instrumentation assemblies
- Delicate mechanical interfaces
Where sealing reliability is as important as surface compatibility, ultra soft sealing gaskets outperform standard elastomers.
Why Choose Suconvey?
Suconvey provides more than just tubing — we offer engineering support, quality assurance and tailored supply solutions to help your project succeed:
---Deep Material Expertise
- Over 10+ years specializing in silicone rubber gaskets for industrial, food, beverage and pharmaceutical markets.
- Understand performance tradeoffs for tubing under temperature, pressure, flex cycles and hygiene requirements.
---Custom Design Support
- Size optimization for flow rates and installation space
- Material selection (solid vs sponge) based on media, pressure and cleaning methods
- Surface finish that supports CIP/SIP sanitation
---Quality from Raw Material to Delivery
Each gasket undergoes:
- Dimensional inspection
- Hardness and compression set testing
- Visual surface inspection
- Material certification (on request)
- Pack and label traceability
We support both prototype trial runs and volume productions for OEM and industrial customers.
---Flexible MOQ & Sample Support
- Support small and pilot orders before production scaling
- Quick turn pre-production samples to verify fit and performance
- Customized packaging and labeling per project needs
---Global Supply & On-time Delivery
- Efficient logistic planning to keep your production on schedule
- Export packing optimized for protection, cleanliness and traceability
Customization Options
We offer ultra soft silicone O-ring seal gaskets in:
Hardness Range
- Ultra soft (5–80 Shore A)
- Custom hardness on request
Dimensions
- Inside diameter (ID): customizable
- Cross-section (CS): from small to large profiles
- Width and height: exact to your drawing
Compound Modifications
- High rebound compounds
- Low compression set optimized
- Special colorants (for identification)
Precision Manufacturing
- CNC cutting / molding / extrusion
- Tight tolerance control
- Prototype sampling and batch consistency
Packaging & Shipping Information
To protect the product during global transportation and storage, we apply export-grade packaging and provide flexible shipping solutions.
Pre-Shipment Inspection
Each batch is inspected before packaging to confirm hardness, thickness, surface condition, and visual uniformity. Batch codes are recorded and compliance documentation may be provided when required for regulatory purposes.
Packaging Method
Silicone gaskets are wrapped with protective film to prevent dust, moisture, and surface damage. Several rolls are placed into reinforced cartons, which are then secured on fumigation-free pallets using straps and stretch film.
Shipment Options
We regularly ship to customers in Europe, North America, and Asia through sea freight, air freight, or express courier for urgent testing needs. Both FCL and LCL shipments are available.
Documentation Support
All necessary export documents can be provided for customs clearance, including commercial invoice, packing list, bill of lading or airway bill, certificate of origin, and food-contact compliance statements or test reports when applicable.
Sample Delivery
Material samples and short test gaskets can be supplied for validation and equipment trials. Samples can be sent via DHL, FedEx, UPS, TNT, or using your appointed courier account.
After-Arrival Support
If any damage or discrepancies are discovered during unloading or inspection, customers may contact us within 7 days with photos and batch information. Our team will respond promptly to assess the situation and provide a reasonable solution.
Happy Customers
Year after year, multiple industries recognize Suconvey Rubber as a leader in quality, service, and innovation. We’re proud to be one of the top rubber products manufacturers in the world.
Frequently Asked Questions
If your question is not listed, please contact us.
Our silicone O-rings are formulated with:
Low modulus elastomer (low hardness)
High rebound quality
Superior resilience under stress
Thermal stability across wide range
Good resistance to aging and environmental exposure
These features make them ideal for applications needing soft, compliant, and durable seals.
To get fast and accurate quotations, please provide:
ID, cross-section, and overall dimensions
Desired hardness range
Operating temperature and environment
Quantity and lead time
Special requirements (certification, color, batch control)
📩 Contact Suconvey today to discuss your custom ultra soft silicone sealing gasket solution.
Yes. Ultra soft silicone maintains performance across wide temperatures (-60°C to +200°C), making it suitable for varied thermal environments.
They resist many common industrial chemicals, moisture, ozone, and UV, though specific compatibility should be confirmed based on exposure conditions.
