At Newtop Custom Silicone, we believe that innovation begins with the right materials and manufacturing methods. That’s why our Liquid Silicone Rubber (LSR) injection molding services are trusted by clients worldwide—from medical and automotive to industrial and consumer applications.

What Makes LSR Molding Exceptional?

LSR is a two-part platinum-cured elastomer that remains in liquid form until injection into a heated mold. This process offers several technical and economic advantages:

✅ High Precision & Repeatability:
LSR flows easily into complex molds, making it ideal for manufacturing parts with intricate geometries and tight tolerances.

✅ Durability Under Extreme Conditions:
LSR products can withstand harsh temperatures (from -50°C to 200°C), UV exposure, and chemical contact—without degrading.

✅ Biocompatibility & Cleanliness:
Certified medical-grade LSR materials are hypoallergenic, odorless, and safe for applications involving human contact.

✅ Automated High-Volume Production:
LSR injection molding is well-suited for 24/7 automated production, allowing high-volume output with minimal waste and consistent quality.

✅ Excellent Sealing Properties:
Its elasticity and chemical resistance make LSR ideal for gaskets, valves, and fluid-handling components.

Real-World Applications

🔧 Industrial Use Case – Custom Valve Seals
Recently, we engineered a custom silicone seal for a client’s high-pressure valve system in a manufacturing facility. The component had to resist oil, heat, and mechanical stress over long-term operation. Using precision LSR molding, our team produced a flawless, tear-resistant part that exceeded the client’s durability expectations.

🚗 Automotive
LSR is used in under-the-hood connectors, spark plug boots, and sensor covers thanks to its ability to perform in high-temperature environments and resist oil.

🩺 Medical
From baby feeding accessories to implantable medical devices, LSR’s purity and softness make it a top choice in healthcare solutions.

💡 Consumer Electronics & Wearables
Smartwatch bands, waterproof buttons, and shock-absorbing housings are all made possible with LSR’s flexibility and resilience.

Why Choose Newtop?
With over a decade of experience and in-house tooling capabilities, Newtop Custom Silicone delivers turnkey LSR molding solutions tailored to your industry. We support you from material selection to final part delivery—with ISO-certified processes and a strong focus on quality and speed.