LSR Injection Molding
LSR silicone molding, also called Liquid Silicone Rubber molding, is an advanced manufacturing technology.Unlike conventional solid silicone, LSR begins as a twocomponent liquid material. These two components are precisely metered, mixed, and then injected under high pressure into a heated mold where they cure into flexible solid parts. This makes it particularly suitable for large-scale production of high-quality silicone components with complex geometries, tight tolerances, exceptional precision, and fine surface finishes.
LSR molding is especially valued for its ability to produce parts that are:
- Consistently accurate: Every part comes out identical, even in high-volume runs.
- Biocompatible and safe: Medical- and food-grade LSR is safe for contact with skin, food, and body fluids.
- Heat- and chemical-resistant: Perfect for demanding environments, including automotive, medical, and industrial applications.
- Durable and flexible: LSR parts maintain elasticity, strength, and performance over time.
Because of these attributes, LSR molding has become the preferred process for manufacturing seals, gaskets, diaphragms, baby care products, medical devices, keypads, and other silicone components that require a combination of softness, durability, and precision.
In short, LSR molding is the preferred choice for complex, high-quality silicone partscombining advanced technology with the unique properties of liquid silicone rubbermeet the highest standards of performance and safety.
Why choose LSR Injection Molding?
Exceptional Precision and Consistency
LSR molding produces parts with tight tolerances and flawless repeatability, making it particularly suitable for complex designs and high-volume production. This ensures every part remains consistent and reliably performs to specification.
01
Design Flexibility
Unlike conventional solid silicone rubber, LSR flows in liquid form to easily fill intricate mold cavities and replicate fine details. This enables the creation of innovative, complex shapes that are challenging to achieve with other materials.
02
Superior Material Properties
LSR components exhibit outstanding durability, flexibility, and resistance to heat, cold, UV exposure, and chemicals. They maintain stable performance and elasticity over time, even under harsh operating conditions.
03
Safety and Compliance
Medical- and food-grade LSR is biocompatible, non-toxic, and hypoallergenic-making it ideal for healthcare, baby care, and food-contact applications where safety is the highest priority.
04
Efficiency and Cost-Effectiveness for Scale
The LSR molding process is highly efficient and economical for medium to large production runs, effectively reducing per-unit costs while ensuring high-quality output.
05
LSR Injection Molding
Raw Material Preparation:
Prepare Component A and Component B of the liquid silicone rubber, and mix them in a pre-determined ratio.
Mixing and Proportioning:
The two components are thoroughly blended using specialized mixing equipment to ensure precise ratios.
Mold Design and Preparation:
Injection molds are designed according to the product's shape and undergo surface treatment to ensure a smooth finish.
Injection Molding:
The mixed liquid silicone is injected into the mold, completely filling the cavity.
Curing and Vulcanization:
The material is cured and vulcanized within the mold to complete the forming process.
Quality Inspection:
Finished products undergo strict quality checks to ensure they meet required standards.
Post-Processing and Packaging:
Qualified silicone products are cleaned, trimmed, and packaged.