Custom color-coded rubber O-rings available in multiple materials, hardness levels, sizes, and colors. Designed for sealing, identification, and assembly management, these O-rings support automotive, electrical equipment, and home appliance applications with fast sampling and flexible customization.
Our colored rubber O-rings combine reliable sealing performance with easy visual identification. Materials, colors, hardness, sizes, and specifications can be customized to meet different assembly, maintenance, and application requirements.
Different colors help identify materials, sizes, batches, or application positions during assembly and maintenance.
Available in NBR, EPDM, FKM, HNBR, Silicone, Fluorosilicone, Neoprene, SBR, ACM, AEM, and other rubber compounds.
Hardness can be customized from 10 to 90 Shore A for different sealing pressure, flexibility, and installation needs.
Available from tiny sizes such as ID 0.60 × CS 0.20 mm to large sizes up to ID 1000.00 × CS 20.00 mm.
Smooth molded surface with a small parting line helps improve sealing consistency and product appearance.
Automatic Doss Machine inspection can be used for 100% O-ring checking.
Technical specifications for custom colored rubber O-rings used in automotive, electrical equipment, home appliance, and general sealing applications.
| Product Specifications | |
|---|---|
| Product Type | Colored Rubber O-Ring |
| Category | O-Rings |
| Materials | NBR, EPDM, FKM, HNBR, Silicone, Fluorosilicone, Neoprene, SBR, ACM, AEM |
| Compound Material | Meets ASTM D2000 |
| Compliance Options | UL, FDA, NSF, RoHS, REACH |
| Material Brands | ZEON, LANXESS, Dow Corning, DuPont |
| Hardness | 10–90 Shore A |
| Color | Custom colors available |
| Size Range | ID 0.60 × CS 0.20 mm to ID 1000.00 × CS 20.00 mm |
| Surface Quality | Smooth surface with small parting line |
| Inspection | 100% checking available by Doss Machine |
| Tooling | 3,500+ existing O-ring tools |
| Tooling Charge | No tooling charge for matched existing tools |
| Sample Lead Time | About 8 Days |
| Mass Production Lead Time | 12–18 Days |
| Applications | Automotive, electrical equipment, home appliance machines |
With more than 3,500 existing O-ring tools, we can support a wide range of custom colors and sizes while helping reduce tooling costs for matched specifications.
Existing O-Ring Tools
Sample Lead Time
Colored rubber O-rings are used in sealing applications where reliable performance, color identification, and easy assembly management are required.
We provide custom colored rubber O-ring manufacturing based on your required material, size, hardness, color, compliance standard, drawing, or sample.

O-rings can be produced in different colors for product identification, assembly management, or branding needs.
Rubber compounds can be selected according to oil resistance, weather resistance, temperature resistance, chemical resistance, or compliance requirements.
We help match your required ID and CS with existing O-ring tools to reduce tooling cost where possible.
Samples can be prepared in about 8 days, with mass production lead time around 12–18 days.

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