Liquid Silicone Rubber (LSR): Material Advantages and Injection Molding Capabilities

Liquid Silicone Rubber (LSR) differs from solid high-temperature vulcanized (HTV) silicone rubber. It is a liquid material known for its excellent fluidity, making it easier to process. LSR is safer and more environmentally friendly, fully capable of meeting high-quality standards.

It offers outstanding properties, including excellent transparency, high tear strength, superior resilience, resistance to yellowing, thermal stability, water resistance, permeability, and resistance to heat aging. Its moderate viscosity allows for easy processing, and the resulting products typically have high transparency—making it easy to identify defects such as bubbles directly from the mold. Additionally, it has a very low shrinkage rate (approximately 0.1%), supporting high product precision.

Liquid silicone injection molding enables the production of rubber parts and components designed to endure extreme conditions while enhancing product performance. Common industries and applications include:

Sector médico

Liquid silicone products are widely used in the medical industry because of their excellent physical properties and excellent chemical resistance and heat resistance. In addition, medical-grade liquid silicone rubber has many advantages, such as biocompatibility, ease of sterilization and transparency. The material feels soft on the skin, which makes it an obvious choice for medical devices that are in contact with the body. The product also meets stringent FDA standards.

Automoción

LSR has durability, tensile strength, high thermal stability, fatigue resistance and tear resistance make it an excellent choice for components used under automotive bonnet. Many OEMs and Tier 1 and Tier 2 automotive suppliers like to use liquid silicone rubber to manufacture a wide variety of individual parts, including O-rings, buttons, assemblies components, gaskets, and cabling harness assemblies. LSR can also be overmolded directly onto plastic or metal parts.

Consumer goods

Liquid silicone rubber has many properties and can provide a variety of raw materials needed to manufacture a variety of consumer goods. These range from kitchen baking pans and plastic shower heads to electronics and bottle dispensers.

Special applications

Various types and grades of liquid silicone rubber make this material suitable for a variety of other uses, including: Valves and gauges, film and gaskets,, irrigation filter parts, pressure devices, check, light panel buttons, etc.

We specialize in the manufacturing of high-quality liquid silicone rubber (LSR) products, leveraging our deep industry experience and advanced injection molding technology. Unlike traditional solid high-temperature vulcanized silicone, LSR is a flowable, two-part material known for its superior fluidity, making it ideal for complex, high-precision molding.

Our LSR products are engineered to meet the most demanding requirements—featuring excellent transparency, high tear strength, thermal and water resistance, and exceptional resilience. With low shrinkage (as little as 0.1%) and moderate viscosity, our process ensures outstanding dimensional accuracy and surface finish. High transparency also allows for easy detection of defects such as bubbles, which further enhances product quality and reliability.

Whether for medical, automotive, baby care, electronics, or consumer goods, our LSR components perform reliably in extreme environments and demanding applications. We are committed to providing safe, eco-friendly, and high-performance solutions tailored to our customers’ needs.

With our professional technical team, strict quality control, and dedication to innovation, we are confident in our ability to support your projects from concept to production—delivering consistent results and long-term value.

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Si tienes una gran idea, podemos ayudarte a hacerla realidad. Hemos hecho esto antes y nos gusta convertirnos en socios durante todo el proceso de creación del producto. Desde asesorarte en el proceso de adquisición del molde hasta entregar tu nuevo producto a los clientes, queremos trabajar contigo en cada paso del camino.

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Producción de calidad sin defectos

Nuestra visión no es solo entregar productos que superen las expectativas de los clientes, sino también ayudarlos a reducir costos trabajando con ellos en el campo del diseño de moldes. 

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