Custom Rubber Seals
| Attribute | Details |
|---|---|
| Materials | NBR, EPDM, CR, FKM, Silicone; also supports PE, PP, PVC, ABS, PC, PA, etc. |
| Color | Customizable color |
| Size | Customized to customer requirements |
| Application Areas | Automotive, communications, machinery, aviation, home appliances, medical, power, packaging, etc. |
| Certifications | ISO 9001 |
| MOQ | 100 pieces (1 piece acceptable for trial orders) |
| Sample Lead Time | 1-7 days after drawing confirmation |
| Production Lead Time | 1-30 days (adjustable based on order quantity) |
Description
Custom molded rubber seals and gaskets manufactured to drawings or samples, supporting prototype development and mass production in NBR, EPDM, FKM and silicone materials.
Quick Capabilities
| Materials | NBR / EPDM / Silicone / FKM | Hardness | 30–90 Shore A |
| Process | Compression / Injection / Extrusion | MOQ | Prototype & Mass Production |
| Tooling | OEM Mold Support | Lead Time | 7–20 Days |
What Are Custom Rubber Seals?
Rubber seals are flexible, elastomeric components engineered to prevent leakage, absorb vibration, and protect your equipment against dust, moisture, and corrosive chemicals. Unlike standard off-the-shelf seals, custom options are tailored to fit your exact application requirements, ensuring optimal performance even in extreme operating conditions.
We produce a full range of custom sealing components, including:
- ✓ O-rings for static and dynamic sealing
- ✓ Custom gaskets for flange and equipment sealing
- ✓ Sealing strips for doors, windows and enclosures
- ✓ Complex molded seals for specialized machinery
- ✓ Bonded seals for integrated assembly solutions
Rubber Materials and Their Applications
Choosing the right elastomer material is critical to ensuring your seals perform reliably over their service life. We offer four core high-performance materials to match your operating conditions:
| Material | Key Features | Applications |
|---|---|---|
| NBR (Nitrile) | Oil resistant, good wear, -40°C to 120°C | Automotive, Hydraulics |
| EPDM | Weather/UV resistant, -50°C to 150°C | Outdoor, Plumbing |
| Silicone | Wide temp range, FDA compliant, -60°C to 230°C | Medical, Food |
| FKM (Viton) | Chemical resistant, -20°C to 200°C | Industrial, Aerospace |
Rubber Seal Manufacturing Processes
We use industry-leading manufacturing processes to produce custom seals with consistent quality and precision, tailored to your order size and design complexity:
Compression Molding
Ideal for low to medium volume production of complex, large-sized seals. This process delivers excellent material properties and cost-effective tooling for prototype and small batch orders.
Injection Molding
Perfect for high-volume production of small to medium precision seals. It offers tight tolerances, fast cycle times, and consistent part-to-part quality for mass production.
Transfer Molding
A hybrid process that combines the benefits of compression and injection molding, ideal for seals with bonded inserts or complex geometric requirements.
Extrusion
Used for long, continuous sealing profiles such as strips and tubes. We can cut extruded parts to your required length for custom sealing solutions.
Why Material Selection Matters in Sealing Performance
A seal is only as good as its ability to hold up to your specific operating conditions. The wrong material can lead to premature failure, leaks, and costly equipment downtime.
Temperature Resistance
Materials are rated for specific temperature ranges to maintain flexibility and sealing force in extreme environments.
Oil Compatibility
We match materials to your fluid type to prevent swelling, degradation, or breakdown in hydraulic or fuel systems.
Chemical Resistance
Corrosive chemicals require specialized materials like FKM to resist attack and maintain long-term sealing integrity.
Pressure Handling
High-pressure applications require materials with proper hardness and compression set resistance to avoid seal extrusion.
Applications of Custom Rubber Seals
Our custom sealing solutions serve a wide range of industries, providing reliable performance for critical applications across the globe.
Automotive
Engine components, transmission systems, and brake assemblies that require oil-resistant, durable sealing solutions.
Medical
FDA-grade silicone seals for medical devices, diagnostic equipment, and pharmaceutical processing machinery.
Electronics
Waterproof and dustproof seals for enclosures, connectors, and consumer electronic devices.
Industrial Equipment
Hydraulic and pneumatic system seals, pump components, and heavy machinery sealing parts.
Food Machinery
Food-safe seals for processing equipment, packaging machinery, and commercial kitchen appliances.
Home Appliances
Washing machine, dishwasher, and oven seals that withstand water, heat, and regular use.
Quality Control for Rubber Seals
We implement strict quality control processes to ensure every seal meets your exact specifications and performance requirements. Our in-house testing capabilities include:
- ✓ Dimensional inspection to verify tight tolerances
- ✓ Hardness testing to confirm material Shore A ratings
- ✓ Compression set testing to measure long-term sealing performance
- ✓ Leakage testing to ensure zero defect sealing integrity
- ✓ Third-party certification support (SGS, ROHS, FDA) as required
OEM Manufacturing From Drawings or Samples
We specialize in OEM custom seal production, working directly with your design files or physical samples to bring your sealing solution to life. Whether you need a one-off prototype or mass production, we can support your project.
- ✓ Support for 2D CAD drawings (DWG, DXF, PDF)
- ✓ 3D file compatibility (STEP, IGES, STL)
- ✓ Physical sample duplication for reverse engineering
- ✓ Rapid prototype tooling for fast design validation
- ✓ Scalable mass production to meet your volume needs
Frequently Asked Questions
Can you manufacture seals from my drawings?
Yes, we fully support custom manufacturing based on your 2D CAD drawings, 3D STEP/IGES files, or even physical samples. Our engineering team will conduct a feasibility review to ensure your design can be produced with the required performance before production.
What rubber material should I choose for my application?
The right material depends on your operating conditions, including temperature, pressure, and chemical exposure. Our team can help you select the optimal material based on your specific requirements to ensure long-term performance.
What temperature can silicone seals withstand?
Standard silicone seals can operate reliably across a wide temperature range from -60°C to 230°C, making them ideal for high-temperature and low-temperature applications where other materials would fail.
Do you support FDA-grade silicone for food or medical use?
Yes, we offer FDA-compliant silicone materials that meet FDA 21 CFR 177.2600 requirements, perfect for food processing equipment, medical devices, and pharmaceutical applications.
Can I order prototype quantities before mass production?
Absolutely. We support prototype orders to help you test and validate your design before committing to full mass production. This allows you to verify fit, form, and function without large upfront investment.
How long does custom tooling and production take?
Standard tooling takes 5-10 days, with production lead times of 7-20 days depending on the complexity of your part and order volume. We also offer expedited services for urgent projects.
What hardness options are available for your seals?
We can produce seals with hardness ranging from 30 to 90 Shore A, allowing you to select the perfect balance of flexibility, sealing force, and wear resistance for your application.
How do you ensure your seals meet performance requirements?
We conduct rigorous in-house testing including dimensional checks, hardness testing, compression set testing, and leakage testing for every batch. We also provide third-party certification and material traceability as required.
