Custom Rubber Grommets
Protect, seal, and support your products with meticulously crafted rubber grommets
Reliable grommet solutions
for any industry
We specialize in manufacturing custom rubber grommets designed for critical vibration isolation, electrical insulation, and abrasion protection. Unlike standard off-the-shelf components, our custom molding process allows for precise modification of groove width, panel thickness, and inner diameters to ensure a perfect seal for your specific assembly. Whether you need blind grommets for environmental sealing or split grommets for retrofitting existing cabling, we can accommodate complex geometries.
Capabilities:
Vibration Isolation: Custom durometers to dampen specific frequencies in automotive and industrial machinery.
Wire Protection: Chamfered edges and smooth finishes to prevent abrasion on wiring harnesses and hoses.
Sealing: Blind and diaphragm grommets designed to block dust, water, and oil ingress (IP-rated designs available).
Technical Specs
Materials:
Neoprene (Chloroprene), EPDM (Weather resistant), Silicone (High Temp), Buna-N (Oil resistant), and Viton.
Hardness Range:
30 Shore A (Soft/Flexible) to 90 Shore A (Rigid).
Tolerances: Capable of meeting RMA A2 Precision molding tolerances.
Size Capabilities: Inner diameters from 0.062″ up to 12.00″.
Engineered Solutions by Application
Automotive Firewalls Problem
HVAC Compressors Problem
Solar Mounting Systems Problem
Material Compatibility Guide
| Material | Key Property | Typical Use |
|---|---|---|
| Silicone (VMQ) | Thermal Stability (-60°C to +230°C) | High-Heat Environments, Firewalls |
| EPDM | Extreme UV, Ozone & Weathering Resistance | Outdoor Mounts, Solar, Roofing |
| Neoprene (CR) | Vibration Dampening & Freon Resistance | HVAC Systems, Dynamic Load Bearing |
| NBR (Nitrile) | Aliphatic Hydrocarbon Resistance | Fuel Lines, Oil Splash Zones |
Need help selecting the right material for your application? [Contact our engineering team >]
Process & Quality Control
Partition Line Tearing Optimizing undercut radii, mold-release agents, and tear trim tooling designs to prevent material shear during demolding.
Flash / Overflow Maintaining precise mold cavity pressure and utilizing post-cure cryogenic deflashing for clean IDs and ODs.
Tolerance Risk from Process Selection How cure-cycle times and cavitation choices affect dimensional consistency across complex grommet geometries.
Grommets that perfectly suit the needs of your product
Fenlora is a trusted name in rubber grommet manufacturing. Work with us to create precision-molded grommets tailored to your product’s performance. Reach out to us today.