LSR Injection Molding
High‑Precision Liquid Silicone Rubber Molding for Medical, Automotive, Electronics & More.
How It Works – Our LSR Injection Molding Process
Liquid Silicone Rubber (LSR) Injection Molding is a precision process to manufacture high quality silicone parts.The process is to use two components low-viscosity liquid rubber to mold silicone elastomer .The two liquid components,which are called component A and component B,are pumped from two individual drums, metered in precise ration ,mixed statically and then injected into a heated mold cavity .Upon contact with the high-temperature mold, the material undergoes a rapid thermosetting reaction (vulcanization/crosslinking), transforming from a low-viscosity liquid into a flexible, durable solid elastomer.
Materials We Work With
With the support of international and domestic supplying chain ,like Wacker ,ShinEstu,Momentive ,Genvan,Wynca,Elkem,etc,OTI could offer series of liquid silicone rubber (LSR) to meet customers’ requirements in different industries.Whether you need biocompatible materials for medical devices, high-temperature resistant grades for industrial parts, or food-safe formulations for consumer products, we can match the right LSR to your application.
Regular LSR,Widely used in various industries.
80-100℃ vulcanization condition,can be over molded with components such as PCB, PP, and ABS that are not resistant to high temperatures.
RTV can be curing in the room temperature,Easy operation and low equipment cost,widely used in mold makeing and Electrical Industry.
High Biocompatibility,Compliant with ISO 10993, USP Class VI, FDA and LFGB standards, low cellular toxicity, no allergy risk, safe for direct skin and tissue contact.
Free of heavy metals, plasticizers and harmful substances.Passes FDA, LFGB and other food contact safety certifications, odorless and non-bleeding, safe for direct contact with hot and cold food.
Built-in silicone oil formula makes products release oil naturally on surface after curing. No extra mold release agent needed, smooth demolding and higher production efficiency,widely used in self-lubricating sealing parts.
Over 92% Light transmittance,crystal clear without haze or color tint, close to glass transparency,widely used in LED lighting and infants products.
Superior tear strength and Excellent flex fatigue resistance,widely used in sports and industry products.
Ultra-low friction coefficient and Self-lubricating without oil spraying,widely used in medical and Industrial Sealing Parts.
Excellent resilience after long-term compression, no permanent collapse, stable elasticity for long-term service.widely used in Precision Sealing Industry.
Self-sticky surface,no glue needed,Strong adhesion and good resistance to pulling and vibration, no edge peeling.
With controllable resistivity, excellent conductivity, anti-static and electromagnetic shielding effect,widely used in lectronic EMI Shielding and Anti-static Electronic Products.
Excellent flame retardant property,meets UL94 V0 grade,Low smoke & non-toxic fume,Temperature resistance exceeding 300 ℃,widely used in new Energy Vehicles and Fire Protection products.
Why Choose LSR Injection Molding
Liquid silicone injection molding is more and more popular though the tool cost is not so competitive as compression molding .More initial investment will turn out better quality and less cost in mass production. Some of the design could only be achieved by liquid injection molding.
Efficiency & Automation
Precision & Quality
Material Utilization & Cost
Applications Across Industries
Optics Application
With the outstanding optical performance,thermal stability and design flexibility ,liquid silicone rubber has become an important alternative material for PC,PMMA and glass in the optical industry .The light transmittance of liquid silicone rubber (LSR) could be up to 95% ,effectively minimizing light loss during transmission.
Auto lighting such as light guides, LED headlight lenses,adaptive high beam system
Thanks to the properties of high-temperature resistance and anti-yellowing ,the liquid silicone rubber (LSR) could ensure consistent light output by managing stably the heat generated by high-power LEDS.
Optical component such as camera lenses,optical sensors,optical coupling elements
LSR injection molding could support complex geometries like Aspheric lenses.It is ideal to produce ultra-thin and precise light elements. Moreover there is no need to carry out post-polishing on optical surface after molding.
Special high-power lighting such as solar energy system
The excellent weatherability of liquid silicone rubber(LSR) material allows the light withstand long-term UV-radiation ,wind and water in the outdoor without degrading optical performance.
Related Projects & Case Studies
Frequently Asked Questions
Yes,we could offer TDS,MSDS and other regulatory compliance documents.
Yes ,standard material sheet or part could be offered.
Yes. Please send the 3D drawings, and we will provide the report within 2 business days.
Shore A 30-Shore A 70 is the common hardness .For some special material ,we could offer Shore A 10- Shore A 80.
The standard tolerance could be ±0.05mm to ±0.10mm.We could also make it ±0.01mm to ±0.03mm with high-quality mold and process control.
200,000-300,000 cycle is available for LSR injection molding tool.
Yes ,same components could be shared for the small qty to support some cost-saving.
Get in Touch Now
Our service team is 7*24 hours online.
Contact Person: Wendy Huang
WhatsApp:8618950122603