Silicone Plug & Stopper Manufacturer – USB Port Plug, Dust Cover & Custom Sealing Solutions

High-quality custom silicone plugs are designed to meet your exact size, shape, and performance requirements. As a direct manufacturer and silicone factory, we provide reliable sealing, dustproof, and waterproof solutions for ports, connectors, and battery systems.

Customize Your Product: From Prototype to Production

Don't Worry: Our 3D Drawing Service Will Sort It Out

MOQ: 1000 Pieces

BPAFREE LFGBNPS SGS FDAAPPROVED CE REACH

Product Certification Made Easy

Description

From Design to Production
High-precision custom silicone plugs, perfectly fitted for various ports.
High-precision custom silicone plugs, perfectly fitted for various ports.
High-temperature and low-temperature resistant, suitable for a wide range of environments
High-temperature and low-temperature resistant, suitable for a wide range of environments
Excellent protection against dust, water, and static electricity
Excellent protection against dust, water, and static electricity
Silicone plugs can be customized in any color upon request (Pantone matching available).
Silicone plugs can be customized in any color upon request (Pantone matching available).
Adjustable Hardness for Various Application Needs
Adjustable Hardness for Various Application Needs

How YueHouDZ Helps Bring Your Product from Idea to Market

A clear 5-step customization process, from your first idea to approved mass production.

Silicone product design model
Product design
Mold making for custom silicone products
Mold making
Silicone product molding process
Silicone molding
  1. Share Your Idea

    Send sketches, 2D/3D drawings, reference pictures, or samples, plus your dimensions and quantity.

  2. Review & Get a Quote

    We review your requirements, suggest materials and a suitable process, and quote for your design and quantity.

  3. Confirm the Design

    We check manufacturability and agree on any design adjustments before mold making begins.

  4. Mold & Sample Approval

    We develop the mold and prepare samples. Review the appearance, dimensions, and colors before production.

  5. Start Mass Production

    After sample approval, we manufacture your product using the agreed material, colors, and process.

  6. Get a Quote Free design service

Production Manufacturing Capabilities

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SpecificationDetails
Maximum Part Size

2 - 1100 mm

0.0787 - 43.31 in.

Minimum Part Size

1mm × 1mm × 0.5mm

0.0394in × 0.0394in × 0.0197in

Tolerances of silicone products

±0.05-±0.1 mm

±0.001-±0.003 in.

Molding Equipment

Compression Molding Machine

PVC dispensing machine, Curing Oven/Equipment, Hot-Press Molding Machine

Surface DecorationSpray coating, Water transfer printing, Heat transfer printing, Silk screen printing, Laser engraving,3D printing, Pad printing, Doming Dome Coating, In-Mold Engraving
Inspection and Certification OptionsQuality reports like FAIs, ISO 9001, ISO 13485
Tool OwnershipCustomer owned
Lead Time

spot goods Wholesale Delivery Time: For products in stock, our delivery time is about 7 days.

custom products Delivery Time: 25-35 days after receiving payment and sample approval.

24/7 quotation response

Why Choose YueHouDZ?

Get a Quote Now
10+ Years of Industry Experience

Established in 2015, we specialize in custom silicone product development from design to production.

Fast Quotation & Prototyping

Receive detailed quotes within hours and start prototyping in as little as 5–7 days.

Strict Quality Control

ISO-certified processes and complete inspection reports ensure high-quality standards for every order.

Eco-Friendly & Safe Materials

BPA-free, FDA, LFGB, CE, and REACH certified — safe for you and your customers.

Flexible Order Quantities

From small trial orders to full-scale production, we meet your needs at every stage.

Mold Ownership Guarantee

You fully own your mold — no hidden costs, complete transparency.

Frequently Asked Question

For more information, please contact us
Can I customize the silicone plug design, color, and size? +
Yes, we offer complete customization for silicone plugs, including dimensions (fit to your port), shape, color (Pantone-matched), logo, and texture. Just send us your drawing, 3D model, or even a rough sketch with dimensions — we’ll handle the rest.
What type of silicone do you use for the plugs? +
Our silicone plugs are made from high-quality food-grade or medical-grade silicone, compliant with FDA, LFGB, and REACH standards. They are safe, durable, and designed for sealing, dustproofing, or waterproofing in various applications.
What’s the MOQ for a custom silicone plug order? +
The typical minimum order quantity is 1000 pieces. However, we offer flexible MOQs for simple designs, repeat orders, or clients in the testing phase. Please get in touch with us to discuss your specific needs.
Can you produce multi-color or dual-material silicone plugs? +
Yes, we can produce multi-color silicone plugs and even dual-material plugs (e.g., combining hard and soft silicone). We also offer PVC or TPE alternatives if needed.
Are your silicone plugs durable for industrial or electronic use? +
Absolutely. Our plugs are heat-resistant (-40°C to +250°C), waterproof, and highly resilient. They're suitable for USB ports, battery compartments, power stations, medical equipment, and other sensitive electronic interfaces.
Can I add a logo or marking to the silicone plug? +
What if I only have a rough idea or drawing? +
No problem! Our design team can help transform your rough sketch, hand-drawn image, or idea into a finished 3D model suitable for mold making and mass production. We provide DFM (Design for Manufacturing) support at no extra charge.
What payment methods do you accept? +
We accept bank transfers (T/T), PayPal, and Alibaba Trade Assurance. Mold and tooling fees typically require full payment upfront; however, large-volume orders may start with a deposit.

About Silicone Plug Manufacturing Video

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