Liquid Silicone Injection Molding
Our Custom Liquid Silicone Injection Molding
Custom silicone prototypes and end-use production parts in 15 days or less. We stock various grades and durometers of LSR materials. Get free LSR quotes and DFM reports within hours, with short lead times and competitive pricing.
- Advanced Equipment & Cost-Effective Price
- 10+ Years in Silicone Injection Molding
- ISO 9001 & ISO13485 Certified Factory
- Rapid Tooling Production as Fast as 2 weeks
- Provide Free DFM Report Within 12 Hours
- Instant Silicone Injection Molding Quotes
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Our Powerful CNC Machining Processes
Providing custom CNC machining solutions at competitive prices, we choose from over 100 materials and 60+ surface finishes to ensure you receive high-precision, structurally complex, and performance-stable parts. Try our precision CNC machining services and become our next satisfied customer.
CNC turning is the process of cutting metal or plastic parts with cylindrical features from the outside of a bar with a rotating tool. The turning process can effectively manufacture circular parts and can be applied to create parts with complex internal and external geometries and various threads.
- Tolerances Down to ± 0.0003 In.
- Competitive Price 30% Cost Save
- Fast Turnaround in 7 days
- Quick Turn Milling Services
CNC milling is a subtractive process that uses 3-, 4-, and 5-axis milling machines and a variety of cutting tools to remove material from solid blocks of plastic and metal into final parts with varying geometries. With our 3-axis and 5-axis CNC milling services, you will be able to get milled parts with a tolerance of 0. 01mm.
- Tolerances Down to ± 0.0002 In.
- Quote Within 24 hours
- Fast Turnaround in 7 days
- Quick Turn Turning Services
EDM and wire-cutting are CNC machining processes that use copper, graphite, or molybdenum wire to get the desired design for undercuts, sharp corners, and the removal of unnecessary material from workpieces. EDM is also frequently used to produce mold and rapid tooling.
- State-of-the-art Equipment
- 10+ Years of EDM & Wire-Cut
- Fast Turnaround in 7 days
- 1-to-1 Quote Analysis
Our CNC grinding machining service will be your best option if you need a very flat surface item or a round part with tolerances of OD and ID ±0.005mm for your production demands.
- Tolerances Down to ± 0.0005 mm.
- Competitive Price 30% Cost Save
- Fast Turnaround in 7 days
- Quick Turn Grinding Services.
Swiss machining is a productive method for creating thin or complex parts. We can always cut the material that is near the workpiece holder by moving the workpiece as well as the active tooling. To prevent distortion in contrast to a conventional CNC lathe.
- Tolerances Down to ± 0.0005 mm.
- Competitive Price 30% Cost Save
- Fast Turnaround in 7 days
- Quick Turn Swiss Machining Services.
We provide CNC routing services for prototypes and parts machining of soft materials like EPS foam, EVA, and wood in addition to regular milling services for parts made of engineering plastics or metals.
- 10+ Years of CNC Routing
- Competitive & Affordable Price
- 100% Part Inspection
- Fast Turnaround in 7 days
Our Robust Silicone Injection Molding Capabilities
From Prototyping to Manufacturing
NOBLE is your trusted one-stop custom manufacturing solution, from prototype design to manufacturing, through huge manufacturing resources, suitable technology, streamlined process, expert guidance, and perfect quality inspection process to turn your ideas into reality.
Mold Design & Engineering
Injection mold design is a key element of the injection molding process as it plays an important role in determining the quality and precision of the final injection molded parts. NOBLE has a professional design team to provide you with the best injection mold design solutions.
- 10+ years of Mold Design & Engineering
- State-of-the-Art Equipment
- 1-to-1 Quote Analysis
- Free DFM Feedback
- Strong R & D capability
- Free DFM and Mold Flow Analysis Report
Mold & Prototype Manufacturing
Once the mold design is approved, we begin manufacturing the mold. We then perform prototype injection molding to quickly and efficiently produce and test them for small batch production of plastic parts.
- 10+ Years of Mold & Prototype Manufacturing
- Thousands of resins to choose from
- Competitive & Affordable Price
- State-of-the-art Equipment
- 100% Part Inspection
- Fast Lead Time
Low-Volume & Medium Injection
NOBLE meets your small and medium batch injection molding needs through strict tolerance control, quality inspection, and complete supply chain, and quickly delivers cost-effective, high-precision parts.
- 10+ Years of Medium & Low Injection Molding
- Competitive & Affordable Price
- State-of-the-art Equipment
- Guaranteed Consistent Quality
- 100% Part Inspection
- Fast Turn-Around Production
Why Choose Us for Custom Liquid Silicone Injection Molding Services
NOBLE offers quick turnaround times as fast as 15 days or more for your prototypes, and stock various grades and durometers of LSR materials. To make the most precise and high-quality molding in as little time and cost as possible.
Work with Us in 4 Simple Steps Only
With many years of manufacturing experience, NOBLE offers the best solutions for all rapid prototyping and low-volume manufacturing needs. We streamline the innovation cycle into four simple but effective steps.
Our Liquid Silicone Rubber Molding Procedure
NOBLE’s staff takes your order needs, from quotation to tooling, as our machines and eficient team ensure you receive your tooling and parts within scheduled lead times. The workfow usually looks like this:
Request Instant Quote
From the moment we receive your inquiry email, our professional engineers will provide a response within 24 hours to ensure a smooth process.
Engineer Evaluation
To ensure we can produce functional molds, we conduct a feasibility review of your design to ensure we can meet the requirements before commencing production.
Mold Flow Analysis
Predictive modeling software helps us understand how the molten material moves and acts within the mold, which helps us make improvements.
Mold Tooling Production
Using your preferred materials enables us to make mold tooling that is of high quality and can readily fit your applications.
Sample Inspection
Sampling will be delivered for you to review prior to manufacturing plastic parts to ensure precision and quality.
Low Volume Production
After the trial production phase, we begin batch production, which uses powerful machining to manufacture parts at fast rates to save on time and costs.
Strict Inspection
We follow international tolerance standards to ensure our parts meet your parameters.
Delivery
As our team handles packaging to secure our parts neatly for transport, we partner with logistics companies to schedule a timely delivery to your region.
What is Silicone Injection Molding?
Using liquid silicone as the raw material, liquid silicone is injected into the mold using an injection molding machine, and after additional steps involving heating and cooling, the finished product is created. In comparison to solid silicone, liquid silicone is odorless, safe, and ecologically friendly. It is often referred to as liquid silicone rubber. Liquid silicone injection molding is a straightforward process; it does not require the manual steps of solid silicone processing, such as dosing, refining, cutting, and laying out, which call for manual product handling or even a completely automated production line without human involvement.
How Does Liquid Silicone Injection Molding Work?
LSR parts are manually removed from the mold due to their flexible nature, which eliminates the need for ejector pins in the mold design. A CNC machining process creates a high-temperature tool that can withstand the LSR molding process. Once the tool is milled, it is polished by hand according to customer specifications, providing six standard surface finish options.
The final tool is then loaded into a state-of-the-art LSR-specific injection molding press that is precisely geared to ensure accurate shot size control, resulting in consistently high-quality LSR parts. LSR is permanently molded once it is set as a thermosetting polymer, unlike thermoplastics that can be melted and remolded. Once the production run is complete, the parts, or the initial sample run, are promptly boxed and shipped.
Advantages of Liquid Silicone Injection Molding
High precision, high output, labor saving, material saving, and power saving are some advantages of liquid silicone injection molding, producing all the products produced by high-temperature solid silicone. The major advantages of liquid silicone injection molding include:
Our Liquid Silicone Injection Molding Tolerances and Standards
The use of NOBLE’s LSR can enhance part formability, improve appearance, decrease production time, and boost efficiency. NOBLE can maintain a machining tolerance of +/- 0.003 in. (0.08mm) with a linear tolerance of +/- 0.025 in./in. (0.025mm/mm).
US | Metric | |
SIZE | 12 in. x 8 in. 4 in. | 304.88mm x 203.2mm x 101.6mm |
VOLUME | 13.3 cu. in. | 217,948 cu. mm |
DEPTH | No greater than 2 in. from any parting line; deeper parts are limited to a smaller outline | No greater than 50.88mm from any parting line; deeper parts are limited to a smaller outline |
PROJECTED MOLD AREA | 48 sq. in. | 30968 sq. mm |
Materials for Liquid Silicone Injection Molding
Standard Silicone (30, 40, 50, 60, and 70 durometers)
Polymer comprised of siloxane that features a rubber-like consistency with molecules that have chains of alternating oxygen and silicon atoms.
Medical-Grade Silicone
Medical grade silicones are silicones tested for biocompatibility and are appropriate to be used for medical applications.
Optical-Grade Silicone
Optical grade silicon is used in infrared optics for systems operating in the mid-infrared range MWIR 3-5 um. Optical transparent LSR polymers, as well as thermoplastic and thermoset optical polymers, offer benefits over glass.
Fluorosilicone (fuel and oil resistant)
Fluorosilicone rubber is based on silicone rubber but has fluorine groups added to the main polymer chain. Like silicone, fluorosilicone is a stable, long-lasting elastomer that resists compression set across temperature extremes.
Surface Finishes for Silicone Injection Molding
Here are some surface finishes for Liquid Silicone Rubber Molding:
Custom Liquid Silicone Injection Molding Parts Display
From prototyping to silicone injection molding for customers at competitive prices, which showcases some of our finished high-quality consistent-performance liquid silicone injection molding parts, and trust us to create your LSR project according to your exacting specifications.
See What Our Customers Say About Us
Customer feedback carries more weight than company claims – check out what our valued customers have to say about our liquid silicone injection molding services.
Project Engineer
Greg Reginelli
We have been working with NOBLE for 4 years. They help us with many products. They will also provide suggestions for you in manufacturing. And we also are impressed with their skillful knowledge and swift response.
James Sanmani
Director of Project Engineer
NOBLE has been a pleasant one-stop shop for all of our medical parts molding needs. Since we work in the medical sector, exact parts are usually needed. The quality of NOBLE’s molds is never in doubt. One of the stack molds we purchased from NOBLE has been running continuously without any unplanned breaks. This reflects favorably on their caliber.
Lead Engineer
Amit Khan
NOBLE has been our tooling partner for over 3 years. Since then, We have a good cooperation in molded parts in medical devices. We are satisfied with their top-notch parts and smooth communication. We highly recommend NOBLE to anyone looking for silicone injection molding parts.
Senior Engineer
Dave Stashko
Thanks to all of the staff in NOBLE. Their staff has professional knowledge and is responsible and patient so that we have a smooth process from ideas to manufacturing. This is also one reason we have had business with NOBLE for many years.
Liquid Silicone Injection Molding Applications
Because CNC machining can achieve high precision without changing the material structure with good manufacturing speed, it is becoming growing common as the range of machines, control systems, and tools for CNC machining continues to expand.NOBLE is dedicated to providing precision machining services for various industries and our precision CNC-crafted parts can be found in all areas of the industry, including.
Oil & Gas
Experts at NOBLE master the comprehensive knowledge of CNC machining for the oil field and gas industry paired with the assurance of high precision offered by top-notch CNC machines.
Automation Equipment
NOBLE Rapid Prototyping service allows you to quickly and easily create automated functional prototypes to test and optimize your design, select the right process, reduce costs, and shorten project cycles. On-demand services can produce automated parts with a high level of accuracy.
Automotive
Our low-volume manufacturing services is the ideal manufacturing solution for on demand automotive parts.
Aerospace
The durability and precision that our precison manufacturing services provide meets the sophisticated needs the different phases of the aerospace industry required.
Medical Devices
Medical supplies manufacturers, tech startups, and research labs benefit significantly from the prototyping solutions we provide.
Robotics
Our industrial-grade robotics prototyping and parts manufacturing services aid in the continuous evolution of the robotics market.
If you are looking for a rapid prototyping manufacturer or a CNC machine shop to fabricate small, medium-volume, or mass-production products, NOBLE is an ideal choice.Our well-trained and experienced staff manufactures parts in line with drawings on modern CNC machines, with the highest accuracy and processing quality in all sizes.In addition, we provide professional design considerations for your CNC machining projects.
Want to get the most professional and fastest service for your CNC machining project? Upload your CAD files now and obtain a quote!
Liquid Silicone Injection Molding FAQs
The primary difference lies in the fact that liquid silicone rubber (LSR) is a “flowable” or “liquid” material, while high-consistency rubber (HCR) is not. LSR is cured using only platinum-based additives, while HCR can be cured using either peroxide or platinum.
The siloxane bond strength of silicone rubber makes it different from other elastomers. The strength of the siloxane bond is 433 kJ/mol, whereas the binding energy of carbon bonds is 355 kJ/mol.
Typically, it takes around 24 hours for silicone sealants to fully cure and become sturdy enough to withstand exposure to water, moisture, and regular usage.
The cost depends on your requirements, many factors contribute to the price, like the size of the component, mold complexity, number of injection cavities, materials, post-processing needs, etc.
Parts fabricated via liquid silicone rubber injection molding are fire retardant and will not melt. Chemical resistance: Liquid silicone rubber resists water, oxidation, and some chemical solutions such as acids and alkali.