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Waterproof Rubber Grommets
Custom Waterproof Rubber Grommets Manufacturer
Waterproof rubber grommets seal cable and wire pass-through holes in panels, enclosures, and bulkheads against water, dust, and moisture. Unlike standard grommets, they feature compression sealing lips that grip the cable jacket and press against the panel face, maintaining the IP rating of the assembly after wiring is installed. Common applications range from outdoor junction boxes and automotive body panels to marine electrical systems and industrial control cabinets.
Flexiparts manufactures custom waterproof rubber grommets from mold tooling to mass production. We support custom bore diameters, panel hole sizes, flange dimensions, lip geometry, material compounds, and IP rating targets. Send us your 2D/3D drawings or samples for a quote within 24 hours.
Materials for Waterproof Rubber Grommets
- EPDM
- NBR
- Silicone
- NR
- CR
- FKM
- SBR
Common Applications
- Outdoor electrical enclosures and junction boxes (IP65/IP67)
- Automotive body panel and door cable pass-through
- Marine and RV deck and hull electrical penetrations
- Solar panel combiner box wiring
- Industrial control panels and automation cabinets
- LED outdoor lighting and street lighting fixtures
FAQ
1. What makes a grommet waterproof?
Waterproof grommets have sealing lips on the inner bore that compress against the cable jacket and a groove that seals against the panel face — blocking water from passing through from either path.
2. What IP rating can your grommets achieve?
Depending on material and design, we can achieve IP54 through IP68. Please share your IP target when requesting a quote.
3. Can you make custom sizes?
Yes — any inner bore, panel hole OD, flange thickness, and groove width. Send us your drawings or samples and we’ll quote within 24 hours.
How To Work with Us
The key to great custom parts is collaboration. As a custom molding manufacturer, our engineers will stay connected with you throughout the process, and deliver products that meet your expectations.
- Send us your 2D/3D files or product concept, for an accurate quote, please send us materials, order quantity, and surface requirements.
- We review your design and send you a clear cost within 24 hours.
- Our tooling team builds the mold to your specifications, then send you T1 samples for confirmation.
- Once the sample is approved, we run full production under strict quality control
- Your finished parts are packaged securely and shipped to your location on time.
Related Products
- More Rubber Grommet
Start Your Project!
Need custom rubber, plastic, or polyurethane parts? FlexiParts offers prototyping and on-demand, low to high-volume production of high-quality, durable components. Whatever your needs, we deliver reliable custom parts on time and within budget. Start your project with us today!
