Custom rubber cap grommets designed for sealing openings, covering holes, protecting ports, and preventing dust, moisture, and contamination in automotive, faucet, electrical equipment, medical equipment, home appliance, sanitary, and agricultural applications. Available in custom materials, colors, hardness levels, and specifications.
Our rubber cap grommets are designed to cover, seal, and protect holes, ports, and assembly openings. With flexible compound options and custom tooling support, they are suitable for both standard and application-specific sealing requirements.
Designed to cover unused holes, ports, and openings to help reduce dust, moisture, and external contamination.
Works as a flexible rubber cap to protect edges, connection areas, and exposed components from damage.
Smooth surface with a small parting line helps improve product appearance, sealing fit, and installation consistency.
Color, size, material, hardness, and shape can be customized according to customer samples, drawings, or application needs.
IATF 16949 certified production support, with inspection standards available under AQL 1.0 / 0.65 / 0.15 and C=0 zero-defect requirements.
In-house tooling with 2 CNC machines operating 24 hours per day helps reduce tooling cost and shorten development time.
Technical specifications for custom colored rubber O-rings used in automotive, electrical equipment, home appliance, and general sealing applications.
| Product Specifications | |
|---|---|
| Product Type | Rubber Cap Grommets |
| Parent Category | Grommets |
| Category | Rubber Cap Grommets |
| Compound Material | Meets ASTM D2000 |
| Compliance Options | FDA, NSF, RoHS, REACH |
| Material Brands | ZEON, LANXESS, Dow Corning, DuPont |
| Hardness | 10–90 Shore A |
| Color | As per request |
| Package | PE Bag, Carton |
| Surface Quality | Smooth surface with small parting line |
| Quality System | IATF 16949 Certified |
| Inspection Standard | AQL 1.0 / 0.65 / 0.15, C=0 Zero Defect |
| Tooling | In-house tooling, 2 CNC machines operating 24H per day |
| Sample Lead Time | About 8 Days |
| Mass Production Lead Time | 12–18 Days |
| Applications | Automotive, faucet, electrical equipment, medical equipment, home appliance housing, sanitary, agriculture |
With in-house tooling and flexible production capability, we support custom rubber cap grommets from sample development to stable batch production.
Sample Lead Time
CNC Tooling Operation
Rubber cap grommets are used in products and equipment where openings, ports, and exposed areas need flexible sealing or protection.
Used to cover holes, ports, and exposed areas in vehicle assemblies.
Helps seal unused openings and protect equipment housings from dust or external contamination.
Applied in appliance housings as protective caps, hole covers, or sealing parts.
Suitable for water-related and sanitary assemblies requiring flexible rubber sealing caps.
Can be used in equipment housings where clean, smooth, and customized rubber protection parts are required.
Used in outdoor machinery and equipment where holes or ports require dust and moisture protection.
We provide custom rubber cap grommet manufacturing based on your drawings, samples, material requirements, color needs, hardness range, and application environment.
Rubber cap grommets can be developed according to customer drawings, samples, or specific opening dimensions.
Rubber compounds, colors, and hardness levels can be selected based on sealing, flexibility, appearance, or compliance needs.
In-house CNC tooling support helps shorten development time and control tooling costs.
Inspection can be arranged according to AQL standards, with stable support for sample orders and mass production.
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Our engineering team reviews your specs and responds within 24 hours with material recommendations and competitive pricing.
