Automotive & Industrial Cable Grommets: IP68 Wire Sealing & Vibration Damping Guide

The Role of Cable Grommets in Modern Assemblies

Cable grommets guide wires through panels while sealing against water, dust, and abrasion. Dongguan Yunze Silicone Products Co., Ltd. produces molded silicone and rubber grommets that combine IP68 sealing with vibration damping for automotive and industrial harnesses.

Sealing Performance

Vibration Damping

Flexible silicone absorbs high-frequency vibration from engines and motors, extending wire and connector life.

Material Options

Silicone for high temperature zones, EPDM for long-term weather resistance, and blended compounds for combined duty.

Sizing the Through-Hole

Match grommet OD to panel hole and ID to the cable bundle OD with 10 to 20 percent radial compression.

Applications

• Automotive body, lighting and sensor harnesses
• Industrial control panels and junction boxes
• Outdoor LED and telecom enclosures

Frequently Asked Questions

How is IP68 achieved?

Through controlled compression between grommet, cable, and panel, verified by immersion testing.

Which compound resists UV and ozone?

Silicone rubber or EPDM, depending on the environment and temperature.

Can grommets be color-coded?

Yes, colors support harness identification and inspection.

Request a Quote

Provide cable OD, panel thickness, and sealing target to Dongguan Yunze Silicone Products Co., Ltd. for a tailored grommet design.