Products

Zhejiang Guoming Rubber Technology Co., Ltd. has spent years deep in the rubber sealing field, and we've learned one thing the hard way: automotive connector failures aren't caused by big problems — a single grain of dust, a drop of moisture is enough to interrupt the signal. That's exactly why we refined the 7165-1648 Gray Single Wire Seal. It may be small, but it's the last line of defense for wiring harness waterproofing and dust protection. From the engine bay to chassis routing, it works where you can't see it, making sure every signal transmits clean through. It's the ideal partner for automotive wiring harnesses and connectors — and many customers have given us great feedback after putting it to use.

Zhejiang Guoming Rubber Technology Co., Ltd. has spent years in the connector sealing space, and one thing hasn't changed: unused cavities on a connector housing are the easiest entry points for water — and the easiest to overlook. You can design the best waterproof connector in the world, but one unsealed cavity, and the whole harness loses its IP rating. The 7161-9787 Brown Silicone Seal Plug does exactly one job — plugs the holes that don't need a wire, and gives water nowhere to go.

For Yellow Silicone Connector Seals Guoming Rubber makes one thing: silicone connector seals. Wire seals, cavity plugs, gaskets, protective boots — all molded in-house, on our own tooling, no third parties. Lip tweaks, color changes go straight to production — no approvals, no handoffs. Standard stock ships within 48 hours. Every seal passes automated optical inspection; tensile, compression set, and heat aging tests run in our on-site lab, right next to the line. RoHS compliant across the board. Let's talk.

Green Silicone Connector Seals:A connector housing can pack twenty cavities — but one wire seal fails, and the whole harness is suspect. That's exactly why we sweat the details on the 967067-1. Triple-lip seal geometry, high-tear silicone. It holds its shape through hot-cold cycles without deforming, fits the cavity tight enough to waterproof yet slips in smooth — no jamming, no wrestling. That's the standard we hold every Green Silicone Connector Seal to. Cut and manufactured at Guoming Rubber.

Zhejiang Guoming Rubber Plastic Technology Co., Ltd. is a factory-direct manufacturer of rubber and plastic sealing parts. Our green silicone connector plugs are molded in-house from high-grade silicone compound — the green color makes them easy to spot on the assembly line and cuts down on mix-ups. They go into automotive wiring harnesses as wire seals and cavity plugs, where they need to hold up against heat, oil, and weather without giving out.These green silicone sealing plugs feature excellent resilience and low compression set. They maintain stable sealing performance within a wide temperature range from minus 40 degrees Celsius to plus 125 degrees Celsius. The products resist coolant, engine oil and ozone ageing, and meet automotive grade reliability standards.Custom non-standard products are available. Guoming Rubber Plastic looks forward to achieving win-win cooperation with you.

Zhejiang Guoming Rubber Plastic Technology Co., Ltd. has long been engaged in the field of precision rubber and plastic components, focusing on the R&D and mass production of rubber sealing plugs for automotive connectors.As an original manufacturer, we mainly supply high-quality white rubber connector sealing plugs, covering a full range of specifications including wire seals and cavity blind plugs. Our products are compatible with mainstream connector systems such as AMP, TE, Bosch, Deutsch and Sumitomo.Manufactured with custom compound formulas featuring excellent resistance to extreme temperatures, oil and aging, our products reach IP66/IP67 dustproof and waterproof ratings, and are widely used for waterproof sealing of wiring harnesses in traditional fuel vehicles and new energy vehicles. We offer direct factory supply and support customized development based on drawings or samples. We look forward to establishing long-term cooperative relationships with global purchasers.