Custom Rubber Parts for EV Charger Connectors
Custom Rubber Parts for EV Charger Connectors | D-Shaped Waterproof Silicone Seals
Custom Rubber Parts for EV Charger Connectors | D-Shaped Waterproof Silicone Seals
Custom Rubber Parts for EV Charger Connectors
Custom Rubber Parts for EV Charger Connectors | D-Shaped Waterproof Silicone Seals
Custom Rubber Parts for EV Charger Connectors | D-Shaped Waterproof Silicone Seals

Custom Rubber Parts for EV Charger Connectors | D-Shaped Waterproof Silicone Seals

Compression Molding HTV Silicone Rubber

Key Specifications

Hardness
40-60 Shore A (Medium)
Intervallo di temperatura
-60°C to 200°C (Standard)
Production Capacity
Large Batch (>10,000 pcs)
Min. Order Qty
10000 pcs
Tempi di consegna
10-15 Days

Certificazioni

Grado alimentare FDA Medical USP VI RoHS REACH UL 3C

Application Fields

Automotive Electronics Industrial Sealing

Color Options

Transparent/Translucent White Black Red Blue Yellow Green Custom Color

Surface Treatment

Smooth Matte Silk Printing Laser Engraving Coating Flocking
ISO Certified
Grado alimentare FDA
OEM/ODM Available
Fast Shipping

OEM Custom Silicone Products -- Manufacturing Overview

Guangdong Dibo Technology specializes in OEM custom silicone products for global brands, distributors, and retailers. As a leading custom silicone manufacturer based in Dongguan, China, we deliver end-to-end OEM silicone manufacturing solutions -- from initial concept and mold design through full-scale batch production and international logistics.

Il nostro OEM/ODM silicone product capabilities cover a broad range of industries including medical devices, automotive sealing systems, consumer electronics, baby care, food-grade kitchenware, and industrial applications. Whether you need custom LSR injection molded parts, silicone rubber compression molded components, or multi-color silicone products, our factory supports flexible production from prototype samples to millions of units annually.

Every prodotto in silicone personalizzato we manufacture undergoes rigorous quality validation -- including ASTM tensile and tear testing, FDA 21CFR migration compliance, and dimensional inspection with German Zeiss CMM systems -- ensuring your OEM silicone parts meet the strictest international standards.

OEM & ODM Silicone Services

Full OEM silicone product development from your drawings or samples. Our ODM custom silicone service includes industrial design, mold fabrication, material selection, and branded packaging -- a complete private-label solution for your market.

Custom LSR Injection Molding

24 dedicated liquid silicone rubber (LSR) injection molding lines produce custom silicone components with ±0.05 mm dimensional accuracy. Ideal for medical-grade silicone parts, food-safe silicone products, and precision custom silicone seals.

Certified Silicone Manufacturer

As a certified OEM silicone supplier, Dibo holds ISO 13485 (medical), ISO/TS 16949 (automotive), and ISO 9001 certifications. Our custom silicone products comply with FDA, LFGB, CPSIA, RoHS, REACH, and BSCI standards for global market entry.

Why Choose Dibo for OEM Custom Silicone Products?

  • 25+ years of experience manufacturing OEM custom silicone rubber products for North America, Europe, and Asia-Pacific markets.

  • Low MOQ custom silicone orders accepted -- scalable from prototype quantities to high-volume annual production exceeding one million pieces.

  • FDA food-grade silicone e USP Class VI medical silicone materials available for custom silicone baby products, kitchenware, and healthcare device components.

  • Custom silicone color matching, custom silicone surface textures (smooth, matte, silk-print, laser engraving), and custom silicone logo branding for complete OEM product identity.

  • Fast-turnaround custom silicone prototypes delivered in 7-10 days, enabling rapid product development cycles for global OEM buyers.

  • 6,000 m² ISO Class 8 cleanroom facility ensures contamination-free custom medical silicone manufacturing e custom food-grade silicone production environments.

Product Details

Why Must Non-Standard Equipment Choose custom rubber parts?

I once faced a water leakage problem when developing an EV charging gun project. Low-quality seal rings stopped my equipment from passing tests. This made me reflect deeply.

custom rubber parts are tailor-made rubber seals designed for unique mechanical needs. I use them to solve fit issues on non-standard interfaces. They match D-shaped profiles and offer waterproof protection.

I used to think standard seals were good enough. Then my EV charging connector leaked during rain testing. I realized the real value of custom seals. Let me show you the key secrets.

How Do Shaped Silicone Seals Solve Interface Leaks?

Standard seals deform easily on custom interfaces. My equipment faced constant short-circuit risks. I felt very anxious. So, I redesigned a dedicated D-shaped silicone seal ring.

Shaped silicone seals use a unique rounded D-shape closed-loop design. I use flat bottoms and curved tops to fit connectors tightly. This structure tolerates repeated assembly and stays elastic.

My Experience in Waterproof Sealing

I developed EV charging connectors and found huge climate changes. Generic seals failed under thermal cycles. This structural design complies with the ISO 20653 protection standard to handle harsh weather. Its flat bottom fits metal grooves tightly. Its curved top gives even compression force during insertion. This solved connector gaps completely.

Why Material Selection Controls Seal Life

I tested many rubber materials. High-grade silicone tested against the ASTM D395 compression set standard maintains a very low permanent deformation rate. It rebounds quickly after thousands of plug cycles. Here is my comparison table:

Tipo di materiale Temp Range Rebound Elasticity Weather Resistance Applicazione
Standard NBR -20°C to 100°C Medium Fair Basic Industrial Seals
Custom FKM -20°C to 200°C High Excellent Oil & High Temp Environments
Silicone personalizzato -40°C to 220°C Very High Excellent EV Connectors & Waterproof Seals

I used custom silicone for my project. It stopped water leaks completely. It raised product quality. You can read my Custom Silicone Parts for hardness selection.

How to specifically implement custom rubber parts?

Industrial data in 2026 shows that over 78% of EV makers use custom shaped seals in connectors. Many of these designs align with SAE J1772 connector specifications. I follow 4 clear steps:

  1. Confirm Needs and Draw Specs: I measure connector dimensions. I draw D-shape profiles in 3D software and set hardness specs (like Shore A 50).
  2. Make Prototypes and Test: I make sample molds first. I test samples in high-pressure water spray and climate chambers for 24 hours.
  3. Optimize Molds and Produce: After passing tests, I start injection molding. This keeps size tolerances below 0.05 mm.
  4. Assemble and Inspect Quality: I install seals into charging gun heads. I inspect seal compression to ensure zero gaps.

I know a small seal ring decides project success in custom equipment. Custom rubber parts solved my leakage problems. If you face sealing challenges, contact me anytime. Let us build custom seals together.

About Me and Dibo Tech

Brand Name: Dibo Tech
Slogan: Dibo Technology Silicone Manufacturing Specialists
Website: https://samxine.com/

Our Mission:
Grounded in strong technical capability and quality, we specialize in custom OEM and ODM silicone rubber production, offering reliable custom solutions for our clients while fulfilling social responsibility for a sustainable future.

About Me:
My name is Kunfa Ye, but my friends call me Jeff. I was born in 1986 under the sign of the Tiger. I started working in the silicone rubber manufacturing industry in 2014, and I now have fifteen years of experience. Over these years, I started from scratch and experienced every rise and fall in manufacturing. I know the hardships and rewards of entrepreneurship deeply. I always focus on professionalism and integrity in every project.

The silicone manufacturing industry seems ordinary, but it affects every part of industrial production. I know that trust stands behind every product, and trade relies on mutual success. Over the years, my proudest achievement is not achieving personal financial independence, but helping my clients optimize their supply chains and improve production efficiency. Their success brings me far more joy than personal achievements.

Now, I hope to give back to the industry—sharing experience, answering questions, and connecting resources. Whether you are a startup or an experienced industry peer, if I can help, I will do my absolute best. Because I always believe: the essence of business is the transfer of value, and true fulfillment comes from how much help you can bring to others.

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Our team responds within 24 hours. OEM/ODM welcome.

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