Liquid Silicone Rubber Overmolding

Liquid Silicone Rubber Overmolding to meet your specific silicone product requirements!

Custom LSR Overmolding

Using Liquid Silicone Rubber Overmolding process, a substrate part is bonded, covered, or encapsulated with liquid silicone rubber (LSR). LSR is injection molded onto a final part to generate a multi-material part. LegenDay is a leading manufacturer of silicone parts through the overmolding process. We support OEMs customer worldwide.

Our team is specialized in this process and trusted for your next project. Equipped with modern production equipment, exceptional quality, and capabilities, LegenDay guarantees a cost-effective process, and results. We will support you from consultation, designing, and prototyping to packing and delivery. LegenDay is your one-stop silicone manufacturer that provides state-of-the-art services at every phase of the LSR/plastic injection molding process.

LSR Overmolding Process Advantages

LSR overmolding is used in a large number of applications and industries. This process is a good option for your projects ranging from LSR over-molded handles to intricate electronic assemblies:

  • Use of non-plastic substrates such as steel
  • LSR molding process’ accuracy and process produce precision high-quality, securely bonded parts.
  • Cost-effective and versatile process
  • Overmolded components offer rigidity and flexibility, sealing and insulating.
  • Overmolding process can add non-plastic substrates such as steel
  • Save related costs and time for the finished assembly
  • Silicone rubber parts are waterproof, airtight, and resistant to stress and vibrations.
  • Guarantee high-quality, securely-bonded parts
Liquid Silicone Rubber Overmolding
Liquid Silicone Rubber Overmolding

Two-Shot Molding Vs. LSR Overmolding

LSR Overmolding and two-shot molding are easy and practical procedures for producing long-lasting components created of 2 or more materials or colors. Overmolding is preferable for low-volume production runs, but two-shot molding is better for bigger production runs.

Two-shot molding is also called dual-shot, or two-shot molding. For excellent bonding, both materials are formed in the same process and machine with cavity-to-cavity alignment.

Overmolding is a multi-shot injection molding method that produces a single final product from two or more distinct thermoplastics. LSR overmolding involves molding an LSR substrate over a metal mass to create a multi-substrate component.

Liquid Silicone Rubber Overmolding Applications

LSR serves as a barrier against impact, heat, debris, moisture, and electrical shock. In the case of implantables, silicone forms a biocompatible protective cover separating the patient’s body from the medical device. LSR overmolding is typically used for the following purposes:

  • Wearable Devices
  • Gaskets and seals
  • Mechanical Reinforcement
  • Fluidic Elements
  • Implants in humans
  • Health Catheters
Liquid Silicone Rubber Overmolding
Liquid Silicone Rubber Overmolding3

Why Choose LSR Overmolding Process?

For baby care and healthcare applications, overmolding enables final devices to be both rigid and flexible. It can also provide ergonomic, sealing, and auditory properties for products in consumer electronics, life sciences, and other industries.

LegenDay is an expert in providing outstanding LSR overmolding services and products with high volume. Our team can adjust our quality control practices to satisfy your particular needs.

Custom LSR Overmolding Solutions from LegenDay

Custom LSR Overmolding Solutions from LegenDay
Custom LSR Overmolding Solutions from LegenDay

LegenDay has rich experience in the liquid silicone rubber overmolding process. We understand LSR overmolding, appropriate tooling, and processes. Our team has produced thousands of custom silicone rubber over-molded parts for specific projects. Following strict quality control, we guarantee precise technology and flawless production. From design and development, prototyping and testing, and thorough manufacturing and assembly, LegenDay is your one-stop solution for the most complex fabrication challenges.

Our team offers engineering support and mechanical design review through the use of superior engineering expertise. Our recommendation is the best solution for your application. Message us today!

LegenDay Design Solution
LegenDay Design Solution

To ensure a project’s success, we’ll assist you in making decisions that affect performance and cost. We offer:

  • Evaluate whether your component needs to be assembled or overmolded.
  • Suggest whether to chemically or mechanically bond.
  • Provide suggestions regarding the overmolded substrate. Whether it be made of metal or plastic.
  • Offer thorough instructions on the essential mechanical design elements that will support a strong, high-performing bond.
  • Taking into account the production cost, process, and weight.
  • Use our industry-leading, FEA model solution
LSR Overmolding Benefits
LSR Overmolding Benefits

Compared to TPEs, Liquid Silicone Rubber Overmolding onto thermoplastics has benefits in many applications, such as:

  • Tensile strength
  • Set compression
  • Chemical toughness
  • Resistance to heat
  • Elongation
  • Natural lubricity
  • Excellent comprehensive performance
  • Extreme flexibility at low temperatures
Can Silicone Be Overmolded?

Yes, Definitely. Although it can be difficult, overmolding silicone onto thermoplastics has benefits over TPEs, such as tensile strength, chemical resistance, and compression set. It is a cost-effective process used by different manufacturers in various industries.

What Is the Purpose of Liquid Silicone Rubber?

Two-part silicone-based polymer liquid silicone rubber (LSR) is merged using a chemical bond. It is most frequently employed to produce injection molded components for goods used in the appliance, food, textile, medical, automotive, and consumer goods industries.

Is Liquid Silicone Rubber Overmolding Suitable for Complex Design?

Yes, of course. LSR overmolding can meet the complicated or complex design structure requirements of medical and automotive sectors. This process components that are airtight, waterproof,  and more vibration and shock resistance.

What are The Liquid Silicone Rubber Properties?
  • Outstanding heat stability: LSR resists melting or creeping at temperatures of up to 180 °C.
  • Low-temperature flexibility – LSR maintain their flexibility at -50 °C.
  • Aging resistance – LSR materials have superior UV, weathering, and aging resistance.
  • Chemical resistance – Even when exposed to extremely high temperatures, LSR exhibits low water absorption and excellent resistance to common chemicals.
  • Low compression set – LSRs have a compression set that is typically between 15% and 20%. Even after being compressed for a long time and exposed to a range of temperatures, they can maintain their elasticity.
  • Excellent shelf-life dependability: The majority of LSR products have a shelf life of at least a year.
  • Electrical resistance – LSR provides high electrical stress resistance without affecting the final product’s conductivity.
  • Environmentally friendly, and does not contain phthalates and halogens.
What are LSR Overmolding Parts Standards?

LSR overmolded parts meet all environmental protection requirements and the environmental testing standards of NP, EN71, ROHS, REACH, and PAHS.

Various LSR Overmolding Project

  • Baby Care
    Baby Care
  • Automotive
    Automotive Products
  • Medical
    Medical Devices
  • Silicone Kitchen Utensil Tool Set
    Houseware and Kitchen Products
  • Mobile Phone Silicone Accessories
    Mobile Phone Silicone Accessories
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