Your Reliable Custom Rubber Silicone Molding Manufacturer

Welcome to our website!  As a trusted manufacturer of custom rubber silicone molding products, Melon rubber silicone stands out for its expertise in mold design for over 10 years. Our specialized knowledge allows us to offer tailored sealing solutions using advanced techniques such as over-molding and silicone injection. With a focus on precision and reliability, we deliver high-quality products that exceed customer expectations.

At Melon rubber silicone, we take pride in being a reliable producer of custom rubber silicone molding products. With our expertise in mold design and proficiency in custom seals, gaskets, over-molding and silicone injection, we offer custom sealing solutions that meet the unique needs of our clients. Our commitment to quality ensures durable and trustworthy products for various industries. Choose us for expert mold design and exceptional custom sealing solutions.


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Types of Rubber Silicone Molding Parts We Made

Liquid Injection Molding 

As specialists in Custom injection molding and Food Grade LSR Injection Molding Parts, we excel in producing intricate complex structures with precision injection processing. Our expertise in liquid silicone injection molding ensures high-quality, durable parts that meet the strictest industry standards.

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Compression Molding

We specialize in rubber silicone compression molding and metal bonding parts compression molding to your unique specifications. Our expert team excels in rubber compounds design, ensuring optimum performance and durability. With state-of-the-art equipment and meticulous attention to detail, we provide reliable and efficient compression molding solutions for a wide range of applications.

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Your one-stop destination for expert Overmolding services. We excel in seamless one-piece overmolding with a range of materials, including steel, brass, liquid silicone rubber, and a variety of thermoplastics such as nylon, PA, ASA, TPU, TPE, PPSU, and PET.” Trust us to deliver exceptional quality, durability, and customization for all your overmolding requirements.”

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Custom Medical Food Grade Silicone Injection Molding Parts

Discover precision and customization with our Medical-Grade Silicone Molding Parts service. We specialize in transforming your specific needs into superior food-grade silicone injection molding parts. With cutting-edge Liquid Silicone Injection Molding, we consistently exceed industry standards. Rely on us for tailored, top-quality silicone molding solutions.

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Premium Custom Rubber Parts Manufacturing

With our advanced rubber compression molding and Liquid Injection Molding techniques, we convert complex designs into high-quality custom rubber silicone molding products. We focus on precision, ensuring every detail aligns with your specifications. Partner with us for uncompromised quality and bespoke solutions in the realm of rubber and silicone injection molding.

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Premium Custom Rubber & Silicone Injection Molds

Stand out in your industry with our specialist services in Rubber & Silicone Injection Molds. As a premier Custom Rubber Silicone Mold Maker, we ensure precision and excellence in every mold we create. Choose us as your trusted partner for bespoke, top-tier mold manufacturing solutions

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Get Your Custom Molded Rubber Silicone Sealing Products

Melon specialize in both rubber silicone compression molding and injection molding processes. With our advanced equipment, skilled technicians, and comprehensive expertise, we deliver customized solutions that meet the highest quality standards. Whether you need precision seals, gaskets, or specialized components, our commitment to excellence ensures your complete satisfaction.

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Custom Rubber LSR Molding Parts Application

The advantage of custom rubber silicone molding parts is that they offer tailored solutions to meet specific application needs. Customers can specify the material type, hardness, color, dimensions, and other properties to ensure the parts precisely fit their requirements. This customization allows for optimal performance, improved efficiency, and enhanced product functionality in a wide range of industries, including automotive, aerospace, electronics, healthcare, and more.


Features that Make Custom Rubber SIlicone  Molding Service

Customizable Designs

We specialize in providing custom sealing solutions tailored to meet specific client requirements. Whether it’s a unique size, shape, or specific industry standards, our team of experts can develop custom O-rings, rubber seals, and gaskets to precisely fit your needs, ensuring optimal sealing performance and compatibility.

Precision Engineering

Our O-rings, rubber seals, and gaskets are manufactured with precision engineering techniques. Each product undergoes rigorous quality control measures to ensure tight tolerances, accurate dimensions, and consistent performance. This attention to detail guarantees reliable sealing solutions that meet or exceed industry standards.

Exceptional Material Quality

Our O-rings, rubber seals, and gaskets are crafted using premium-grade rubber and silicone materials. These high-quality materials ensure superior durability, resistance to extreme temperatures, and excellent sealing properties, making them reliable for a wide range of applications.

Wide Range of Temperature

We offer a wide range of O-rings and gaskets,which are formulated to operate across a wide temperature range. They can withstand extreme cold and hot temperatures, maintaining their sealing integrity and performance in harsh environments. This versatility allows for reliable sealing solutions in various industries and applications.


Custom Rubber Silicone Molding Manufacturing Process

1) Material Selection: To carefully select the appropriate rubber compounds (NBR/EPDM/FKM/NR, etc.) or silicone (food-grade silicone, medical-grade silicone, or LSR) based on the application environment of our clients’ products. We consider factors such as hardness, physical properties, and chemical resistance to recommend the most suitable material for optimal performance.

2) Custom Design:Our experienced team works closely with clients to understand their custom design requirements, including shape and tolerance specifications. We conduct Design for Manufacturability (DFM) analysis to ensure efficient production and design custom molds to meet client’s needs.

3) Mold Manufacturing:Once the design is finalized, we proceed with the manufacturing of custom molds. Our skilled mold makers utilize advanced techniques and equipment to create precise molds that accurately replicate the desired product shape.

4) Prototyping:Before proceeding to mass production, we provide prototyping services to validate the design and functionality of the custom rubber and silicone products. Once the mold is ready, we produce samples for client testing and confirmation before proceeding with full-scale production. This ensures that the final products meet the desired specifications.

5)Manufacturing Process:Our experienced operators monitor the production process to ensure consistency and quality throughout no matter compression molding or liquid silicone injection molding.

6) Quality Control: We have a comprehensive quality control system in place to ensure the highest standards of product quality. 


Liquid Silicone Injection Mold Design Details

Liquid silicone injection mold design involve the specific considerations and requirements for designing molds used in the liquid silicone injection molding process. Here are some key aspects of liquid silicone injection mold design: following:

  • Mold Cavity and Part Design: The mold cavity design should take into account the desired shape and features of the final silicone part. It should include considerations for draft angles, parting lines, gates, runners, and vents to ensure proper flow of the liquid silicone material and easy release of the finished part.
  • Cooling System: Effective cooling is essential to control the curing process and achieve efficient production cycles. Cooling channels are designed within the mold to ensure uniform cooling and reduce cycle times.
  • Injection System:The injection system includes the sprue, runner, and gate design. It should be optimized to achieve consistent and uniform flow of the liquid silicone material into the mold cavity. The gate design determines the location where the material enters the cavity and affects the part’s appearance and quality.
  • Mold Surface Finish:The mold surface finish plays a significant role in the final part’s appearance and quality. It should be smooth and free of defects to ensure a high-quality surface finish on the silicone parts. Various techniques, such as polishing, texturing, or coating, can be applied to achieve the desired surface finish.

Custom Molded Rubber Silicone Molding Products


Custom molded rubber silicone injection molding products offer a wide range of benefits for various industries. From their exceptional durability and versatility to their ability to meet precise specifications, these products provide superior performance and reliability.

  • Superior Tailored Solutions: Custom molded rubber silicone injection molding products are designed to meet specific requirements, ensuring a perfect fit for your applications. They can be customized in terms of size, shape, hardness, color, and other specifications, allowing for optimal performance in even the most demanding environments
  • Excellent Durability:These products are known for their exceptional durability, withstanding harsh conditions, extreme temperatures, chemicals, and other challenging factors. They offer long-lasting performance, reducing the need for frequent replacements and maintenance, thereby saving time and costs.
  • Superior Performance:With their precise manufacturing process and high-quality materials, these products deliver superior performance in terms of sealing, pressure resistance, flexibility, and resistance to wear and tear. They maintain their integrity even under challenging conditions, ensuring optimal functionality and reliability.
  • Enhanced Safety and Compliance: Custom molded rubber silicone injection molding products can be manufactured using materials that comply with industry standards and regulations. This includes the use of medical-grade or food-grade silicone, ensuring safety and compatibility in sensitive applications such as healthcare, food processing, and consumer products.
  • Versatility: Custom molded rubber silicone injection molding products can be used across a wide range of industries and applications. From automotive and aerospace to medical and industrial sectors, they serve diverse purposes such as sealing, cushioning, insulation, vibration damping, and more..

Why Choose Us

Professional Custom Rubber Molding Company With Over 10 Years of Experience

With years of industry expertise, we have accumulated extensive knowledge and experience in manufacturing custom molded rubber and silicone products. Our expertise allows us to deliver high-quality products that meet diverse customer requirements.

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Custom Molding Design Support

Our team of skilled engineers and designers provides customized design support. We work closely with customers to understand their specific needs and provide design assistance, ensuring that the final product meets their exact specifications.

We offer a wide selection of materials for custom molded rubber and silicone products. Whether it’s NBR, EPDM, FKM, NR, or food-grade, medical-grade, or general-purpose silicone, we recommend suitable materials based on your application requirements.

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Stringent Quality Control

Quality is our top priority. We have implemented strict quality control measures throughout the production process. From incoming material inspections to in-process quality checks and final inspections, we ensure that each product meets the highest quality standards..
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Competitive Factory, Cost-effective,Flexible Production Capacity

As a direct B2B seller, we offer competitive factory prices for our custom molded rubber and silicone products.With our flexible production capacity, we can handle both small and large volume orders. Whether you require a few prototypes or a bulk production run, we can meet your specific production need

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Responsive Customer Service:

We pride ourselves on providing excellent customer service. Our responsive and knowledgeable team is always available to address any inquiries, provide technical support, and offer assistance throughout the ordering process

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Value-added Services

In addition to our core manufacturing capabilities, we offer value-added services such as assembly, packaging, labeling, and kitting. These services provide a comprehensive solution for your product needs

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Fast and Efficient Delivery (Free Shipping)

Our fast response system guarantees the completion of the customer’s order requirements. Once the products are finished and confirmed, our relevant staff will arrange a free shipment. The delivery of general orders will be 15-30 days.
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After-Sales Support

1. Technical Assistance

Our dedicated team of experts provides technical support to any inquiries or concerns you may have regarding our custom molded rubber and silicone products. We are committed to ensuring your complete satisfaction and assisting you in achieving optimal product performance

2.Continuous Support and Improvement

Our commitment to after-sales support extends beyond the initial purchase. We value long-term partnerships with our customers and strive to continuously improve our products and services. We actively seek feedback and suggestions to enhance our offerings, address emerging needs, and provide tailored Rubber injection molding solutions that meet evolving requirements..

3.Technical Expertise:

Our highly skilled technical team is well-versed in the intricacies of custom molded rubber silicone injection molding products. They possess deep knowledge and expertise to provide accurate and reliable technical support. Whether you need assistance with product installation, troubleshooting, or maintenance, our experts are here to help.

4.Warranty Coverage

We stand behind the quality and performance of our custom molded rubber silicone injection molding products. As a testament to our confidence, we offer warranty coverage to protect our customers’ investment. Our warranty ensures that any manufacturing defects or non-compliance with specifications will be promptly addressed and resolved.

Ready to Get the Perfect Custom Rubber Silicone Molded Product?

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Rubber Silicone Molding Service FAQs


We utilize high-quality materials such as silicone, rubber, and other elastomers in our custom molded products. These materials are selected for their durability, flexibility, and resistance to various environmental factors.

Our custom molded rubber silicone injection molding products are manufactured using a variety of high-quality materials, each offering unique advantages and characteristics. Here is an overview of some commonly used materials:

NBR (Nitrile Butadiene Rubber): NBR is highly resistant to oils, fuels, and chemicals, making it an ideal choice for automotive applications. For instance, we manufacture NBR O-rings and gaskets that are used in engine components, fuel systems, and transmission systems of vehicles. These NBR seals provide reliable sealing and prevent leakage in demanding automotive environments.

CR (Chloroprene Rubber): CR exhibits excellent weathering resistance, ozone resistance, and flame retardancy. In the marine industry, we produce CR seals and gaskets that are commonly used in boat engines, watercraft hulls, and offshore equipment. These CR components effectively withstand exposure to saltwater, UV radiation, and harsh marine conditions.

EPDM (Ethylene Propylene Diene Monomer): EPDM is renowned for its outstanding weather resistance and durability. We manufacture EPDM seals and gaskets that find applications in the construction industry, specifically in windows, doors, and architectural elements. These EPDM components provide excellent sealing, thermal insulation, and resistance to weathering and UV exposure.

FKM (Fluoroelastomer): FKM exhibits exceptional chemical resistance, high-temperature stability, and excellent mechanical properties. In the chemical processing industry, we produce FKM seals, O-rings, and gaskets that are utilized in pumps, valves, and pipelines. These FKM components effectively withstand aggressive chemicals, extreme temperatures, and challenging operating conditions.

Silicone: Silicone materials offer excellent flexibility, high-temperature resistance, and biocompatibility. In the healthcare industry, we manufacture medical-grade silicone components such as seals, gaskets, and diaphragms used in medical devices and implants. These silicone products comply with FDA regulations, ensuring safety and biocompatibility for patient care.

LSR (Liquid Silicone Rubber): LSR is known for its clarity, heat resistance, and biocompatibility, making it suitable for various industries. In the automotive sector, we produce LSR gaskets and seals used in engine components, where heat resistance and durability are crucial. In the electronics industry, LSR is employed in keypads, connectors, and electrical insulation components due to its excellent electrical properties and resistance to environmental factors. Additionally, in the infant care industry, we offer FDA-approved LSR materials for manufacturing baby feeding accessories like pacifiers and bottle nipples, ensuring safety and compliance with regulatory standards.

For different industry sectors, we tailor the material formulations to meet specific requirements. In industries such as automotive and aerospace, where heat and chemical resistance are crucial, we utilize high-grade silicone materials that comply with industry standards and regulations. These materials ensure optimal performance and safety in demanding environments.

In the healthcare and medical sectors, we use medical-grade silicone materials that meet strict regulatory requirements, including FDA compliance and biocompatibility. These materials are hypoallergenic, non-toxic, and suitable for applications requiring prolonged contact with the human body.

For applications in the electronics and electrical equipment industry, we offer silicone materials with excellent electrical insulation properties, thermal stability, and flame resistance. These materials provide reliable protection and insulation for sensitive electronic components.

Furthermore, we have the capability to develop custom material formulations to address specific industry needs. For instance, in the infant care industry, we can provide liquid silicone materials that are FDA-approved and suitable for baby feeding accessories. These materials ensure safety and compliance with regulatory standards.

At our custom molded rubber silicone products facility, we approach mold design with a meticulous and systematic process to ensure optimal results. Our experienced team of engineers combines expertise with advanced CAD/CAM software to create molds that precisely meet the specific requirements of each product.

We begin by conducting a comprehensive Design for Manufacturability (DFM) analysis, considering various factors such as part geometry, material characteristics, and production volume. This analysis helps us optimize the mold design for efficient manufacturing processes and high-quality end products.

To further enhance the mold design, we utilize advanced mold flow analysis software. This enables us to simulate the flow of molten rubber silicone material within the mold cavity, allowing us to optimize factors like gate location, cooling channels, and venting. By minimizing defects such as air traps, voids, or flash, we ensure consistent part quality and dimensional accuracy.

In parallel, we carefully analyze the material properties required for the specific application. Through comprehensive material analysis, including hardness, tensile strength, elongation, and chemical resistance evaluations, we select the most suitable rubber silicone material that guarantees excellent performance and durability.

Additionally, our engineers conduct a detailed analysis of the product’s structure and mechanism. This involves evaluating factors such as wall thickness, rib design, draft angles, undercuts, and functional requirements. By considering these aspects, we create mold designs that accommodate the product’s intended functionality, aesthetics, and ergonomic considerations.

Overall, our approach to mold design for custom molded rubber silicone products combines technical expertise, advanced software tools, and a commitment to delivering molds that enable efficient production and consistent product quality. With our meticulous attention to detail, we ensure that each mold design meets the unique requirements of our clients and results in superior custom molded rubber silicone products.”

By incorporating more details and emphasizing the technical expertise and commitment to quality, the revised response provides a more comprehensive and persuasive explanation of the mold design process for custom molded rubber silicone products.

We employ a range of molding processes to meet the diverse needs of our customers for custom rubber silicone injection molding.

One of our primary processes is liquid silicone injection molding (LSR), which involves injecting liquid silicone material into a precise mold cavity under high pressure. LSR molding offers several advantages, including excellent dimensional accuracy, tight tolerances, and the ability to produce intricate and complex designs. This process is ideal for applications that require high-quality and high-performance rubber silicone products, such as medical devices, automotive components, and consumer electronics.

Another molding process we utilize is compression molding. This method involves placing pre-formed rubber silicone material into a mold cavity and applying heat and pressure to shape it into the desired form. Compression molding is suitable for low to medium volume production and allows for cost-effective manufacturing of various rubber silicone products, such as O-rings, gaskets, and seals.

Additionally, we employ transfer molding for certain applications. Transfer molding involves heating the rubber silicone material and forcing it into a mold cavity through a runner system. This process allows for precise control over material flow and is commonly used for manufacturing products with intricate designs, over-molding applications, and parts that require insert molding.

By leveraging these molding processes, we can cater to a wide range of product requirements, volumes, and complexity levels. Our experienced team of engineers carefully assesses the project specifications and selects the most suitable molding process to ensure the production of high-quality custom rubber silicone injection molded products.

Tolerance control is a crucial aspect of our manufacturing process. We employ advanced machining techniques, precise tooling, and rigorous quality inspections to ensure tight tolerances are achieved and maintained throughout production. Our goal is to deliver products that meet the specified dimensional requirements

Yes, we offer prototyping services to validate designs and provide samples for customer evaluation. Our rapid prototyping capabilities allow us to efficiently create prototypes that closely resemble the final product, enabling our customers to make informed decisions before proceeding with full-scale production..

At our company, we have a dedicated quality assurance team that meticulously oversees every stage of the manufacturing process to ensure the highest level of quality for our custom molded rubber silicone injection molding products. Our commitment to quality is unwavering, and we strive to deliver products that meet the most stringent standards.

To guarantee the dimensional accuracy, performance, and durability of our products, we employ advanced testing equipment and methodologies. This includes conducting a range of tests to validate the functionality and reliability of our custom molded rubber silicone products.

During the prototyping phase, we utilize cutting-edge techniques such as 3D printing and CNC machining to rapidly produce prototypes that closely resemble the final product. These prototypes undergo rigorous testing and quality checks to assess their performance and suitability. For instance, in the case of O-ring seals, we conduct specialized tests such as leakage testing, compression set testing, and hardness testing to ensure proper sealing and performance under different conditions.

In addition to prototyping, we implement robust quality control procedures for larger production runs. This involves the implementation of sampling plans and statistical process control (SPC) techniques to monitor and maintain consistent product quality. Our quality control team conducts regular inspections, measurements, and tests throughout the production process to verify that the products meet the required specifications.

Furthermore, we prioritize material testing to ensure the quality and reliability of our products. We subject the raw materials used in the production process to rigorous testing, assessing their physical properties such as tensile strength, elongation, and hardness. By conducting comprehensive material testing, we ensure that our custom molded rubber silicone products are made from high-quality materials that meet the necessary standards and specifications.

By employing these meticulous quality assurance measures and conducting thorough product testing, we aim to deliver custom molded rubber silicone injection molding products that exceed customer expectations in terms of performance, durability, and reliability.

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