Product Overview
Waterproof EPDM Cable Grommets for Auto Wire are precision-engineered sealing solutions designed to protect and insulate automotive wiring harnesses. Made from high-quality EPDM rubber, these grommets provide excellent resistance to water, dust, oil, vibration, and temperature fluctuations.
Ideal for passenger vehicles, trucks, and industrial automotive equipment, these grommets ensure secure cable routing and long-term durability even in harsh under-hood or exterior environments.
Structure & Cross-Section
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Precision Circular Design with Adhesive BackingThe grommet features a circular structure with a built-in pressure-sensitive adhesive (PSA) layer for easy installation on panels or chassis. The EPDM rubber ensures reliable waterproofing and vibration damping while maintaining flexibility for cable insertion and removal. Commonly used in automotive wiring harnesses, sensor connections, and cable routing for both passenger and commercial vehicles. |
Material Selection
1.EPDM Rubber
| Material | Key Features | Typical Applications |
|---|---|---|
| EPDM (Ethylene Propylene Diene Monomer) | Excellent water, weather, ozone, and UV resistance; flexible, durable, and vibration-absorbing; high temperature tolerance (-40°C to +150°C) | Automotive cable grommets, wiring harnesses, sensor seals, under-hood protective seals |
2. Special Compound Options
- ˚ ✵ Internally lubricated rubber compounds (Paraffin / PTFE / Silicone / Graphite)
- ˚ ✵ Electrically conductive rubber compounds
- ˚ ✵ UL-approved rubber compounds
3. Surface Treatment Options
- ˚ ✵ Talc powder treatment
- ˚ ✵ Silicone oil treatment
- ˚ ✵ PTFE coating
- ˚ ✵ PSA (pressure-sensitive adhesive), single-sided or double-sided
Product Advantages
✶ Core Advantages
- Waterproof & Dustproof – Ensures long-term protection against moisture and contaminants
- Vibration Dampening – Reduces wear and cable fatigue in dynamic automotive environments
- Temperature & Chemical Resistance – Withstands under-hood heat, oils, and automotive fluids
- Customizable Size – Available in various DN sizes to fit different cable diameters
✶ Manufacturing Strength & Quality Assurance
- Experienced manufacturer – Years of focus on rubber gaskets and sealing solutions
- In-house compounding – Raw material control ensures consistency and quality
- Advanced production equipment – Precision molding and finishing for tight tolerances
- Strict quality control – Incoming inspection, in-process checks, and final QC
- Custom & OEM support – Drawings-based production and application engineering assistance
Product Applications
Engine bay and dashboard cabling
Heavy-duty cable routing
Machinery cabling protection
Sealing and insulation
Packaging & Shipping
📦 Packaging Options
We provide flexible packaging solutions based on product size, order quantity, protection requirements, and customer preferences. Both standard and special packaging options are available to ensure safe delivery and convenient handling.
| Category | Packaging Type |
|---|---|
| Standard Packaging | Large Poly Bags (Bulk) |
| Small Poly Bags | |
| Foam / Bubble Protective Packaging | |
| Special Packaging | Blister Packaging |
| Inflatable Packaging | |
| Plastic Heat Shrink Packaging + Cardboard Reinforcement | |
| Sleeve Packaging (Protective Tube) | |
| Customization Available: Labels, part numbers, barcodes, batch info, or customer branding upon request | |
🚚 Shipping & Logistics
We offer multiple shipping methods with flexible delivery options to meet your project timelines.
| Item | Details |
|---|---|
| Shipping Methods | Express (DHL / FedEx / UPS), Air Freight, Sea Freight |
| Delivery Time | Express: 3–5 days | Air: 5–7 days | Sea: 25–35 days |
| Export Packing | Standard export cartons, palletized if required |
| Trade Terms | EXW, FOB, CIF, DDP available |
| Shipping Port | Xiamen, China |
| Custom / Tooling Orders | Orders requiring custom molds or special tooling |
💡Secure & Reliable Delivery :
All products are packed to prevent contamination, deformation, and surface damage, ensuring they arrive in optimal condition for immediate use or assembly.
Certificates & Compliance
🏆 Official Certificates: ISO 9001, CE, UL, RoHS, REACH
⚙️ Automotive Compliance & Standards: ASTM D2000; PPAP Level 3 (Production Part Approval Process)
🧪 Additional Material Testing & Customer Requests:
Customers can request extra certification or third-party testing beyond our official certificates. All EPDM materials are fully tested for physical, chemical, and automotive performance, ensuring long-term reliability in wiring harness applications.
FAQ – Request For Quotation
❓ What information should I provide for a quotation?
Please provide the grommet diameter (DN size), cable diameter, quantity, desired hardness, and any adhesive requirements. Detailed wiring harness info speeds up quotation accuracy.
❓ Is there a minimum order quantity (MOQ)?
No MOQ for standard sizes; custom tooling may require higher volumes, which we can discuss individually.
❓ How long does it take to receive a quotation?
We usually respond within 24 hours. Complex custom sizes or bulk orders may take slightly longer.
❓ Can I request special certifications?
Yes, we can accommodate requests for NSF, WRAS, RoHS, REACH, or PPAP Level 3 testing for automotive applications.
❓ What are the lead times for production and delivery?
Standard grommets ship in 1–2 weeks. Custom sizes with tooling typically take 3–6 weeks depending on complexity. Expedited production is possible.
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