Liquid Silicone Rubber Injection Molding Service
Customized silicone rubber parts delivered in as little as 1 day – rapid prototyping and mass production expertise!
Our Liquid Silicone Rubber Injection Molding Service
Our Liquid Silicone Rubber (LSR) injection molding service delivers custom prototypes and end-use production parts in as little as one day. We employ advanced aluminum molds that provide cost-efficient tooling and accelerated manufacturing cycles, ensuring quick turnaround times. With a diverse inventory of LSR materials in various grades and durometers, we cater to multiple applications, including low-volume production, bridge tooling, pilot runs, and functional prototyping. Experience the efficiency and precision of our LSR molding process for all your silicone rubber part needs.
Our Liquid Silicone Rubber Injection Molding Capabilities
Our liquid silicone rubber injection molding capabilities are designed to provide high-quality, durable parts that optimize moldability, enhance cosmetic appearance, and reduce overall production time. By adhering to essential design considerations, we ensure that each part meets the highest standards of precision and performance. Whether you need intricate details or superior material properties, our advanced techniques and expert engineering support make us the ideal partner for your silicone rubber molding needs.
| Métrica | |
|---|---|
| Tamanho | 305mm x 203mm x 102mm |
| Volume | 217,948 cu. mm |
| Depth | No greater than 50.88mm from parting line |
| Project Mold Area | 30,968 sq. mm |
| Mold Cavity Tolerances | +/- 0.003″ |
| Part to Part Repeatability | +/- 0.002″ |
Material Selection for Liquid Silicone Rubber Injection Molding
Our liquid silicone rubber injection molding process offers a wide selection of high-performance materials tailored to your application requirements. We provide various grades of silicone rubber, including:
- Standard Silicone: Available in 30, 40, 50, 60, and 70 durometers, offering a range of hardness options to suit different applications.
- Medical-Grade Silicone: Biocompatible materials suitable for medical devices and implants, ensuring safety and reliability.
- Optical-Grade Silicone: Clear materials perfect for optical applications, providing excellent transparency and light transmission.
- Fluorosilicone: Fuel and oil-resistant, ideal for applications requiring chemical resistance and durability.
Our expert team will guide you in selecting the ideal material to ensure your parts achieve the desired performance, aesthetics, and functionality, making your project successful from prototype to production.
Finish Options for Molded Parts
If the finish you want is not listed, please contact us and we will customize the finish for you individually.
Standard Finish
Moldmaker's choice of finish, typically SPI B-2, with interior non-cosmetic faces left as-machined.
SPI Finishes
Range from Grade 3 diamond/high polish to 320 stone low polish, including SPI A-1 to SPI D-3 finishes.
As Molded
No secondary polishing or grinding, with parts showing tooling marks.
MoldTech Finishes
Include matte, swirls, lines, and patterns, with standard finishes such as MoldTech MT11010, MT11020, and MT11030.
Other Textures - VDI
VDI 3400 Surface Finish, processed mainly by EDM machining, produces fine to coarse matte finishes.
Assembly
Capability to assemble and label injection molded parts, with specific needs discussed with your salesperson.
Threaded Inserts
Installation of standard inserts in UNF and metric sizes.
Pad Printing
Transfer a 2D image onto a 3D part, subject to image review.
Laser Engraving
Engraving of part numbers, logos, and more onto your parts.
How does Liquid Silicone Rubber Injection Molding Work?
Liquid silicone rubber (LSR) injection molding leverages the flexible nature of LSR, requiring manual removal of parts from the mold, thus eliminating the need for ejector pins in the mold design. Like a standard aluminum tool, an LSR molding tool is fabricated using CNC machining to create a high-temperature tool capable of withstanding the LSR molding process. After milling, the tool is polished by hand according to customer specifications, allowing for some standard surface finish options.
The completed tool is then loaded into an advanced LSR-specific injection molding press, which is precision-geared for accurate control of shot size, ensuring the production of consistent, high-quality LSR parts. Since LSR is a thermosetting polymer, its molded state is permanent—once set, it cannot be melted again like a thermoplastic. Upon completion of the production run, parts (or the initial sample run) are promptly boxed and shipped, ensuring a quick turnaround time for our customers.
Advantages of Liquid Silicone Rubber Injection Molding
Liquid silicone rubber injection molding offers numerous benefits, making it an ideal choice for various industries and applications. Here are three key advantages:
- Versatility and Flexibility: Liquid silicone rubber (LSR) injection molding offers exceptional versatility, allowing the production of parts with complex geometries and intricate details. The flexible nature of LSR makes it ideal for a wide range of applications, from medical devices to consumer products.
- Durability and Performance: LSR parts are highly durable and resist extreme temperatures, chemicals, and UV light. This ensures that the molded parts maintain their performance and integrity over time, making LSR a reliable choice for demanding environments.
- Precision and Consistency: The advanced injection molding process provides precise control over shot size and molding parameters, resulting in consistent, high-quality parts. The ability to achieve tight tolerances and uniformity makes LSR injection molding suitable for critical applications where accuracy is paramount.