Liquid Silicone Rubber (LSR) Molding Service

| AS9100D | ISO9001 | ISO14001 | IATF 16949

Silicone-Rubber-Case-Strap-Injection-Molding Parts Moxperts-min

About LSR Injection Molding

Liquid Silicone Rubber (LSR)  injection molding is a high-performance, two-part, thermoset elastomer that exhibits organic and inorganic characteristics. It is a process to produce reliable, durable parts in high volume. It covers thousands of applications across various industries, including medical, automotive, infant care, general industrial markets, aerospace, electronics, and many other specialized industries. While liquid silicone rubber injection molding works best for short- and long-run part production, customers can employ the process in the final prototyping stages. The process is also suitable for evaluating different material configurations before green-lighting a project for total production.

Advantages of LSR Molding

Liquid silicone rubber is high purity platinum cured silicone with a low compression set, excellent stability and ability to resist extreme temperatures of heat and cold, ideally suitable for the production of parts, where high quality is a must. Due to the thermosetting nature of the material, liquid silicone injection molding requires special treatment, such as intensive distributive mixing, while maintaining the material at a low temperature before it is pushed into the heated cavity and vulcanized.


As per testing, liquid silicone rubber has demonstrated superior compatibility with human tissue. Compared with other elastomers, LSR is resistant to bacteria growth and will not stain or corrode other materials. LSR is also tasteless and odorless and comply with stringent FDA requirements.


LSR parts can withstand extreme temperatures, making them ideal for components under the hood of cars and close to engines. Parts fabricated via liquid silicone rubber injection molding are fire retardant and will not melt.

Electrical properties

LSR has excellent insulating properties, which offer an appealing option for many electrical applications. Compared to conventional insulating material, silicone can perform in far higher and lower temperatures.

Temperature resistance

Compared to other elastomers, silicone can withstand a wide range of high/low-temperature extremes.

Mechanical properties

LSR has good elongation, high tear and tensile strength, excellent flexibility and a hardness range of 5 to 80 Shore A.

Chemical resistance

Liquid silicone rubber resists water, oxidation, and chemical solutions such as acids and alkali.

Material options

Moxperts offer a wide variety of certified alloys for rapid insert injection molding services. If the material is not listed, feel free to contact us for a customized solution.

Finishing Services

Moxperts team wants to offer you a prototype that will look like the final product. Talk to one of our project managers to get your project started.

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