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Colorful O-Rings

Custom colored rubber O-rings available in a wide range of sizes, colors, and specifications. With more than 3,500 existing O-ring tools and automatic Doss Machine inspection, we support fast sampling, stable quality, and flexible customization for sealing, identification, and assembly applications.

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Key Features

Custom Colors for Easy Sealing Identification

Our colored rubber O-rings are designed for applications that require reliable sealing performance and easy visual identification. Sizes, colors, materials, and specifications can be customized according to different assembly and sealing requirements.

  • Custom Color Options

    O-rings can be produced in different colors to support product identification, assembly management, or application differentiation.

  • Smooth Surface Finish

    Smooth molded surface with a small parting line helps improve sealing consistency and product appearance.

  • Wide Size Capability

    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.

  • 3,500+ Existing Tools

    More than 3,500 sets of O-ring tools are available, helping reduce tooling cost for many standard and common sizes.

  • 100% Inspection Available

    Automatic Doss Machine inspection can be used for 100% O-ring checking.

  • Custom Samples and Specifications

    Samples, dimensions, colors, hardness, and specifications can be customized according to customer requirements.

Technical Data

Specifications & Materials

Technical specifications for custom colored rubber O-rings used in sealing, identification, and assembly applications.

Product Specifications
Product Type Colored Rubber O-Ring
Category O-Rings
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

Available Compounds

  • NBR Rubber

    NBR is commonly used for colored O-rings requiring oil resistance, abrasion resistance, and cost-effective sealing performance.

    Oil Resistant Wear Resistant General Sealing
  • EPDM Rubber

    EPDM is suitable for colored O-rings used in weather, ozone, aging, and water-resistant sealing applications.

    Weather Resistant Ozone Resistant Water Resistant
  • Silicone Rubber

    Silicone rubber is suitable for colored O-rings requiring flexibility, temperature resistance, and clean color appearance. FDA or NSF compliant grades can be selected when required.

    Flexible Temperature Resistant FDA Available
  • FKM Rubber

    FKM is used for high-performance colored O-rings requiring strong resistance to heat, chemicals, oils, and fuels.

    Chemical Resistant High Temperature Premium Grade
  • HNBR Rubber

    HNBR provides improved heat, oil, and wear resistance compared with standard nitrile rubber, making it suitable for demanding sealing applications.

    Heat Resistant Oil Resistant Durable
  • Neoprene Rubber

    Neoprene offers balanced resistance to weathering, abrasion, and mild chemicals for general industrial colored O-ring applications.

    Weather Resistant Abrasion Resistant General Purpose

Wide Size Support with Existing Tooling

With more than 3,500 existing O-ring tools, we can support a wide range of custom sizes and colors while helping reduce tooling costs for matched specifications.

  • 3,500+

    Existing O-Ring Tools

  • Custom

    Colors & Specifications

Where It's Used

Application Scenarios

Colored rubber O-rings are used in sealing applications where color identification, assembly management, or visual differentiation is required.

  • Product Identification

    Different colors help distinguish materials, sizes, batches, or application positions.

  • Assembly Line Management

    Colored O-rings make it easier for workers to identify correct sealing parts during assembly.

  • Industrial Sealing

    Used in general machinery, equipment, and sealing systems requiring customized rubber O-rings.

  • Electrical Equipment

    Suitable for sealing or insulation-related applications in electrical equipment assemblies.

  • Automotive Components

    Can be used in automotive sealing applications where specific color coding or custom dimensions are required.

  • Custom Sealing Projects

    Available for customized sealing designs based on drawings, samples, colors, or specific size requirements.

OEM & Custom

Custom Colored O-Ring Manufacturing

We provide custom colored rubber O-ring manufacturing based on your required size, color, hardness, material, sample, or drawing.

  • Color Customization

    O-rings can be produced in different colors according to product identification or branding requirements.

  • Size Matching

    We help match existing tools based on your ID, CS, drawing, or sample to reduce tooling cost where possible.

  • Material Selection

    Rubber compounds can be selected according to oil resistance, weather resistance, temperature resistance, or compliance needs.

  • Inspection Support

    Automatic Doss Machine inspection is available to support consistent O-ring quality.

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