Products Description
Automotive electrical system EPDM wire harness grommets
EPDM wire harness grommet (grommet) used in automotive electrical systems is a specific type of ring-shaped gasket used to protect and secure electrical wiring harnesses. EPDM stands for Ethylene Propylene Diene Monomer, which is a synthetic rubber material with good heat resistance, weather resistance, and chemical resistance.
The purpose of the wiring harness grommets is to provide protection and isolation for electrical wiring harnesses as they pass through the vehicle's body or other components. They are usually made of soft EPDM material, which has a certain degree of elasticity and durability and can withstand vibration, temperature changes, and chemical corrosion during vehicle use.
EPDM wire harness grommets play an important role in automotive electrical systems to ensure the safety and reliability of electrical wiring harnesses. They help protect against frayed wires, short circuits, and other potential failures while providing dust, water, and soundproofing.
| Physical properties | ||||
| Property | Test standard | Value | Unit | |
| Hardness | ISO 48 | 67.5＋/-5 | IRHD | |
| Elongation at break | ISO 37 | 211 | % | |
| Tensile strength | ISO 37 | 11.2 | Mpa | |
| Compression set-24 hours at 150 ℃ Slab | ISO 815 | 15 | % | |
| Ageing properties | ||||
| Property | Test standard | Value | Unit | |
| Heating ageing-72 hours at 100 ℃ | ISO188 | |||
| Hardness change | 4 | IRHD | ||
| Elongation at break change | -18.5 | % | ||
| Tensile strength change | -18 | % | ||
| Volume change | 0 | % | ||
| Aging water-166hours at 100 ℃ | ISO 1817 | |||
| Hardness change | -1.1 | Shore A | ||
| Elongation at break change | -1 | % | ||
| Tensile strength change | -8.5 | % | ||
| Volume change | 2.15 | % | ||
Products Properties Description
Properties
EPDM wire harness grommet has the following physical properties, chemical properties, processing properties, and mechanical properties in automotive electrical systems:
Physical properties
- Heat resistance: EPDM has good heat resistance and can maintain its physical properties and elasticity in high-temperature environments.
- Weather resistance: EPDM has excellent weather resistance and can resist damage from ultraviolet rays, oxygen, ozone, and atmospheric conditions.
- Elasticity: EPDM has high elasticity and can return to its original shape after deformation.
chemical properties
- Chemical Resistance: EPDM has good resistance to many common chemicals, including acids, bases, solvents, and greases.
- Corrosion resistance: EPDM can resist the erosion of corrosive media and is not easily damaged by chemical substances.
Processing performance
- Formability: EPDM has good formability and can be processed by extrusion, pressing, or injection molding.
- Shearability: EPDM is easy to cut, punch, and perforate during processing to adapt to different installation needs.
- Adhesion: EPDM can be bonded to other materials (such as metal, plastic, and rubber) to provide good connection and fixation effects.
Mechanical behavior
- Tensile strength: EPDM wire harness grommets have good tensile strength and can withstand large tensile forces.
- Wear resistance: EPDM has high wear resistance and can resist friction and wear with other materials.
- Toughness: EPDM has a certain degree of toughness and can maintain its integrity and performance when subjected to shock or vibration.
Products Locations Description
EPDM wire harness grommets are widely used in the following locations in automotive electrical systems
- Engine room: EPDM wire harness grommets are commonly used for electrical wiring harnesses in engine rooms, including battery cables, ignition coil wire harnesses, sensor wire harnesses, etc. They protect the electrical wiring harness from engine heat, vibration, and chemicals.
- Body: EPDM wiring harness grommets are used for electrical systems inside the body, such as instrument panel wiring harness, door and window wiring harness, audio system wiring harness, etc. They secure and protect wiring harnesses while providing dust, water, and sound insulation.
- Car doors: EPDM wire harness grommets are used in car doors for power window wire harnesses, central door lock wire harnesses, audio speaker wire harnesses, etc. They protect the wiring harness from vibration and friction during door opening and closing.
- Front and rear light sets: EPDM wiring harness grommets are commonly used for electrical wiring harnesses in front and rear light sets, including headlights, fog lights, brake lights, signal lights, etc. They secure the wiring harness and prevent the intrusion of moisture and dust.
- Junction boxes and connectors: EPDM wire harness grommets are used in electrical junction boxes and connectors to protect and secure connectors and wire harnesses from the external environment.
For more details for customized, please supply drawings or original samples to us.
Hot Tags: automotive electrical system epdm wire harness grommets, China automotive electrical system epdm wire harness grommets manufacturers, suppliers, factory, Food Grade Gummiformteile, Rubber Wiring Harness Sheath, Door and Boot Long Wiring Grommet, 2Pin 90 Degree Connector Plug Rubber Boot, Hydraulic Cylinder X Rings, Bulkhead Firewall Grommet Plug Connector
