LSR Overmolding Solution Provider
With over 8 years of expertise in LSR overmolding technology, Henry Precision provides over-molding services for a wide range of consumer products and life science applications.
Henry-precision’s LSR/plastic overmolding processes create parts specifications as tight as 0.001”. We utilize the most advanced injection molding equipment for overmolding to ensure the highest possible quality and superb repeatability. Different types of overmolding injection molding we provide include:
- Plastic over metal
- Silicone Rubber over metal
- Plastic over plastic
- Silicone Rubber over plastic
LSR OVERMOLDING - EVERYTHING YOU NEED TO KNOW
What Is LSR Overmolding
The overmolding process involves creating a single part using a combination of two or more plastic or elastomer materials. During the plastic overmolding process, the base layer part is molded first, then the additional plastic layer(s) are molded over and around the original part. One or more plastic resins may be used depending on material compatibility to achieve a specific texture or look.
Overmolding is used for a range of applications including medical, automotive, military and more. A common example of injection overmolding is a toothbrush with a stiff frame and rubberized grips on the handle. Different overmolding material options are also used to add color contrast for aesthetics or to create flexible areas on rigid components.
Benefits of LSR overmolding
- Save Time and Money– When we mold silicone directly onto metal or plastic parts, we cut out many assembly steps that used to be done by hand. This means you can make your products faster and spend less on manufacturing, helping you bring them to market sooner and at a better price.
- Build Better Products– This silicone rubber molding process works great for making complex parts, especially for cars and medical devices. When silicone rubber are overmolded onto other materials, you get parts that keep water out, don’t leak air, and handle shocks and vibrations better than traditional components.
- Make Parts with Precision — We can make these LSR overmolded parts exactly to your specifications in class 100k clean rooms. While overmolding is challenging and requires extremely precise measurements, it produces high-quality parts consistently. The process ensures excellent control over how each part turns out.
Applications of LSR Overmolding
LSR Overmolding is used for a range of applications including medical, automotive, electronics and more. Our research into silicone overmolding extends to food-grade and medical grade silicone for use such as baby pacifiers that designed for direct contact with food or the mouth.
MEDICAL DEVICE
NEW ENERGY AUMOTIVE PARTS
3C DIGITAL PRODUCTS
AUDIO PRODUCTS
HIGH-END BATHROOM PRODUCTS
What Material Combinations Can You Use for Overmolding
Overmolding is a process that often used to create a textured or comfort grip surface on metal components so an initial part of the material selection process is reviewing different material properties to see which will produce the desired results. This become a bit trickier when using more than one material because material properties can change when two or more resins are combined.
Compatibility is key for the overmolding process, so there may be some limitations as to which overmolding material combinations you can use. There are also important considerations regarding thickness effects, hardness, and coefficient or friction to ensure compatibility between lsr overmolding materials.
We have extensive knowledge of LSR/plastic materials including thermoplastics and exotic resins to help you select the right materials for your specific part. Some of the more common materials used for injection overmolding are:
| ABS | A common and versatile plastic that provides good resistance heat, oils, acids and alkalis. Other features include high impact strength and toughness, good dielectric properties, excellent ductility and ability to be alloyed with other polymers. |
| PEEK | This high-performance plastic provides high chemical and temperature resistance without degradation and provides excellent fatigue and stress-crack resistance. It is FDA-approved and suitable for use in medical device applications. |
| Acrylic Thermoplastics | Provide excellent weather ability and resistance to UV fading. They feature high tensile strength and are scratch-resistant. Acrylics are also available in FDA-approved grades for use in food and medical applications. |
Our expertise in LSR technology ensures optimal material selection and processing parameters for your specific requirements.
LSR Overmolding vs. Insert Molding
LSR Overmolding | Insert Molding | |
Process | Applies one material over another, creating a seamless multi-material part. | Encases pre-formed components (e.g., metal inserts) in plastic. |
Material Integration | Combines materials for added grip, aesthetics, or functionality. | Adds strength or functionality by integrating rigid components. |
Applications | Used for ergonomic grips, dual-material parts. | Common for reinforced housings, threaded components. |
Custom LSR Overmolding Solutions from Henry Precision
- Henry Precision Provides Custom LSR Overmolding Solutions
Henry-precision specializes in LSR overmolding technology, ensuring the success of your projects through our comprehensive expertise. We guide you through every phase from initial design to final production, providing technical support and troubleshooting solutions throughout the process.
Since the materials we use shrink as they cool following the overmolding process, special considerations are made during the tooling development process to accommodate for changes in dimensional tolerance. Our mold designers will perfectly match their mold specs to the unique needs of your overmolding project. And because we use several different materials in overmolding with different cooling/shrinking properties, we create our molds to match the specific properties of the materials being used.
The variety of materials we use, the precise capabilities of our equipment, and our mold design services make our overmolding process extremely customizable. Our state-of-the-art LSR processing equipment, combined with expert mold design capabilities, allows us to offer highly customizable solutions. Whether you need:
- Complex medical device components
- High-precision automotive parts
- Consumer electronics with water-resistant seals
- Custom industrial components
Henry-precision tailors each LSR over-molding solution to meet your exact specifications. No matter what your project specifications are, and how low or high-volume your production run will be, Henry-precision will meet, even exceed the expectations of your next over-molding project.
Ready to explore LSR overmolding solutions? Contact our team to discuss your project requirements.
Cases
Explore our overmolding projects across medical, automotive, consumer electronics, and other applications.
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Partner with Henry-precision to Experience
Premium LSR Overmolding Excellence
- Advanced in-house tooling for precise LSR over-molded components
- Flash-free production with minimal waste
- Streamlined manufacturing requiring no post-processing
- Specialized cold runner systems for optimal material control
Advanced Manufacturing Capabilities
- State-of-the-art automated production facilities
- High-precision injection molding systems
- Integrated quality control processes
- Industry-leading 6S management implementation
Expert Technical Support
- In-house mold design and fabrication expertise
- 30+specialized technical professionals
- Customized R&D solutions
- Comprehensive project support from concept to production
Cooperation Process
Request a Quotation
Upload your 2D/3D files and product details. Our team will review the submission and provide an accurate quotation within 24 hours, ensuring a quick and efficient start to your project.
Confirm the order
Upon confirming the purchase order, we deliver a detailed Manufacturing Analysis Report. This report reviews tolerances, cosmetic specifications, and identifies any potential quality-impacting issues for your approval.
DFM Review
Collaborating with you, we refine mold flow analysis, dimensions, tolerances, and appearance specs. Your timely approval of Design for Manufacturing (DFM) Review ensures optimized production planning.
Production & Quality Assurance
With DFM approval, our dedicated project engineers oversee the entire production process. Inspections are performed under ISO9001 and ISO13485 standards to ensure precision and consistency.
Timely Delivery & After-Sales Support
After quality assurance checks, parts are packaged and delivered promptly. Our team remains available to address any post-delivery concerns, ensuring your complete satisfaction.
Let’s build the future with innovation.
Please provide the following details to help us better understand your needs and get in touch with you as soon as possible.
You can send us 3D drawings in STL, STEP, IGES and 2D drawings in PDF. We will provide accurate quotations within 24 hours.
From concept to completion, we provide a one-stop silicone mold manufacturing service.
