LSR Injection Molding
High-Precision Liquid Silicone Rubber Molding for Medical, Automotive & Electronics
What Is LSR Injection Molding?
Key Advantages of LSR Injection Molding
Exceptional Properties
Delivers outstanding heat resistance, cold resistance, chemical resistance, and electrical insulation.
Efficient Production
Features fast curing cycles and fully automated operation, and supporting high-volume mass production.
Long-Term Durability
Resists aging, UV radiation, and wear, delivering long-lasting performance and reducing replacement frequency.
Smooth Surface Finish
Creates parts with a flawless, non-stick surface finish, eliminating the need for secondary finishing or post-processing.
Suitable Materials for LSR Injection Molding
We work with a full range of high-quality liquid silicone rubber materials tailored to diverse application requirements, including:
Standard hardness grades (10 Shore A to 80 Shore A) for everyday elastomeric parts, offering balanced flexibility and strength.
Platinum-cured, low-compression-set silicone for medical devices, surgical tools, and healthcare components, meeting strict biocompatibility and cleanliness standards.
FDA-compliant silicone for food contact products, kitchenware, and beverage industry parts, ensuring safety and non-toxicity.
Clear, translucent, and custom color-matched silicone for visual-critical parts, cosmetic components, and consumer goods.
Specialized formulations for extreme heat environments, ideal for automotive and industrial sealing applications.
Typical Industry Applications
LSR injection molding serves a wide range of high-demand industries across Europe and America, with core applications including:
- Medical & Healthcare: Surgical instrument grips, medical seals, respiratory components, implantable device parts, baby product accessories, and diagnostic tool components.
- Automotive: Engine gaskets, weather seals, electrical connector boots, sensor membranes, and high-temperature resistant interior/exterior elastomeric parts.
- Electronics & Electrical: Waterproof seals, cable grommets, keyboard keypads, sensor covers, and insulating components for consumer and industrial electronics.
- Food & Beverage: Silicone seals for containers, coffee machine parts, baby bottle nipples, food storage gaskets, and kitchen appliance components.
- Consumer Goods: Cosmetic applicators, wearable device parts, kitchenware grips, waterproof watch seals, and personal care product components.
- Industrial Engineering: Precision seals, diaphragms, O-rings, and vibration-damping parts for industrial machinery and equipment.
Our LSR Injection Molding Process Flow
Our streamlined 5-step LSR molding process ensures consistent quality, efficiency, and precision from start to finish:
- Material Preparation & Dosing: Precise mixing of two-part LSR components (Part A and Part B) in exact ratios, with degassing to remove air bubbles and ensure material uniformity.
- Mold Setup & Heating: Specialized LSR molds are installed and heated to optimal curing temperature, preparing for liquid silicone injection.
- Injection & Curing: Degassed liquid silicone is injected into the heated mold cavity under controlled pressure, where it rapidly cures and solidifies into the desired part shape.
- Part Ejection: Fully cured silicone parts are automatically ejected from the mold, ready for initial quality checking.
- Final Inspection & Packaging: Each part undergoes dimensional inspection, visual check, and performance testing, then is cleaned and packaged for delivery.
Why Choose Us for LSR Injection Molding?
Specialized Expertise
Our team has extensive experience in LSR mold design, material selection, and process optimization, handling complex and high-precision silicone part projects with ease.
Advanced Equipment
Equipped with automated LSR injection molding machines, precision mold-making tools, and clean production environments for medical-grade parts.
Customized Solutions
We offer end-to-end services from mold design and prototyping to mass production and post-processing, tailoring solutions to your unique project requirements.
Cost-Effective Production
Optimized process flow and material usage reduce production costs, delivering high-quality LSR parts at competitive prices for both small-batch and large-volume orders.