Custom molded rubber plug provides dependable sealing, dustproof, waterproof and electrical insulation. Flexible and durable, available in push-in, tapered and flanged designs. Custom shapes, dimensions and hardness can be made to your drawings or samples.
Item No :
Lead-P001Brand :
LEADUsage :
Used for sealing, dustproof and insulation on electrical cabinets, sheet metal furniture, automotive parts, pipes and industrial machinery.Size :
custom sizeMOQ :
500-1000PCSLead Time :
7-15daysPayment :
100% TT, L/C at sigh, Paypal, Wester unionCustom Molded rubber plug
Our custom molded rubber plugs are manufactured for hole blanking, reliable sealing, dust & water protection and electrical insulation. Made from high-performance rubber compounds, they remain flexible and durable under varied working conditions.
We supply multiple styles including push-in, tapered and flanged rubber plugs. Material options cover silicone, EPDM, NBR, FKM and neoprene to meet requirements of high temperature, oil resistance, UV and aging resistance.
Widely used for electrical enclosures, sheet metal panels, automotive chassis, cabinets, machinery housings, pipes and tanks. OEM & ODM custom molding is available. We can produce customized shapes, sizes, hardness and colors according to your drawings or samples.
| Item Name | Custom molded rubber plug for hole sealing, dustproof, waterproof and insulation. Silicone, EPDM, NBR, FKM available, |
| Material | NBR ,EPDM,CR,NR,HNBR,FKM etc |
| Hardness | 30-90Shore A |
| Color | We can customize it according to your requirements. |
| Manufacturing | Compression molding |
| Size | As per customer's design |
| Price Tip | The price shown above is just for reference, fnal actual price depends on your design, material request, surface treatment order aty, package request etc. |
| Certifications | RoHS, REACH certificate |

Our molded rubber components comply with GB/T 3672‑2002 (ISO 3302‑1:1996). Four tolerance grades M1~M4 are optional. We separate F fixed dimensions and C closure dimensions to meet your precision requirements for custom rubber seals.


We can provide complete physical test reports according to your material requirements, including hardness, tensile strength, elongation, compression set, temperature range and chemical resistance.
We are able to supply COA, COC and compliance documents for REACH, RoHS, FDA and UL. Batch traceability is guaranteed for custom molded sealing parts.

Xiamen Lead Rubber & Plastic Industry Co., Ltd. is a professional factory focused on the design and fabrication of rubber & plastic molds, as well as custom molded rubber and plastic components.
We specialize in exporting O-rings, rubber gaskets, various rubber seals, rubber plug,rubber bumpers, molded plastic parts, precision tooling molds and other custom molded products.
Our in-house mold workshop develops custom molds for a wide range of rubber and plastic materials. We design and manufacture tooling strictly according to customers’ 2D/3D drawings, samples and technical specifications.
We provide full one-stop OEM & ODM solutions for global buyers, covering mold development, material formulation, prototyping, mass production and quality inspection. Our products widely serve automotive, hydraulic, pneumatic and general industrial sealing applications.

Custom rubber molded products Manufacturing
Lead Rubber is a professional manufacturer specializing in custom molded rubber sealing components and mold fabrication.
We mainly export custom rubber O-rings, gaskets, various rubber seals, rubber bumpers, precision molds and other custom molded rubber & plastic parts.
We develop custom molds for a wide range of rubber and plastic materials based on customers’ drawings, samples and technical requirements. We deliver one-stop OEM & ODM custom sealing solutions for global buyers.

Lead rubber offers full OEM development for custom molded rubber O-rings, gaskets and seals, plus custom plastic components.
Following your drawings, samples or technical specifications, we manufacture tailored sealing parts with our in-house mold workshop covering mold design, CNC machining, trial testing and validation.
We support multiple materials including NBR, EPDM, FKM, Silicone and engineered plastics. Our engineering team collaborates with you for prototype sampling and mass production tooling to balance quality, lead time and cost.
Lead rubber has rigorous quality control & testing system covers the full production cycle: incoming raw material inspection, in-process monitoring, sample validation and final batch release for all custom molded rubber & silicone components. Every molded gasket and seal is inspected to meet drawing tolerances, material specs and global compliance standards, delivering stable sealing performance for electronics, energy storage, EV and industrial applications.

Lead Rubber offers packaging options for international shipments, including PE bags, export carton, and palletized packaging where required. Customized packaging, logo printing, and product labeling can be discussed according to order quantity and customer requirements.
Packaging methods are selected according to the product type, shipment method, and destination requirements. Please confirm any special packaging or labeling instructions before placing an order.


Q1: What is a molded rubber plug used for?
A1: It is mainly used for hole sealing, dust prevention, waterproofing and electrical insulation. It blocks exposed holes on enclosures, sheet metal, machinery and automotive parts to keep out dirt and moisture.
Q2: What material options are available?
A2: We offer silicone, EPDM, NBR, FKM and neoprene. Choose NBR for oil resistance, silicone for high temperature, EPDM for outdoor UV & weather resistance.
Q3: What styles of rubber plugs do you supply?
A3: Push-in, tapered and flanged molded rubber plugs are standard. Custom shapes are also supported.
Q4: Can you make rubber plugs as per customer’s design, drawings or samples?
A4: Yes. OEM & ODM custom molding is available. We can produce customized shape, size, hardness and color according to your design.
Q5: Are these rubber plugs flexible and easy to install?
A5: Yes. The rubber compound maintains good flexibility. Push-in types can be fitted directly into matching holes without extra fasteners.
Q6: Will the rubber plug harden or crack easily?
A6: Proper rubber formula delivers good aging resistance. Service life depends on working temperature, oil and UV exposure.
Request a Quote for rubber plug,Contact Lead Rubber with your specifications.
Please submit 2D/3D CAD drawings or physical samples, dimensions, rubber material, hardness, quantity, application and special performance requirements for quotation. If custom mold tooling is needed, also advise cavity quantity and mold steel preferences.
Contact Person: Sunny
Tel: 0086-13400616316
WhatsApp: 0086-13400616316
Email: sales1@leadindustryproducts.com
Contact Person: Lucy
Tel: 0086-13328793979
WhatsApp: 0086-13328793979
Email: sales4@leadindustryproducts.com
Contact Person: Nana
Tel: 0086-15872688050
WhatsApp: 0086-15872688050
Email: sales2@leadindustryproducts.com
Pricing Notice: The displayed price is for reference only. The final quotation depends on product design, material selection, dimensions, tooling requirements, order quantity, surface treatment where applicable, and packaging specifications.
leave a message