Liquid Silicone Rubber


Liquid silicone rubber (LSR) came into being from a very definite need to produce silicone rubber products more proficiently and cost-effectively. Liquid Silicone Rubber (LSR) is cured silicone with low compression set. Liquid silicone rubber serves various characteristics like it has great stability and it has ability to resist extreme temperature variation.

Liquid silicone rubber products find their use in several industries that include construction, electrical engineering, automotive, medical technology and the food sector, and Sanitary and household goods. Liquid silicone rubber products could be small or big in size but has silica as a common product in them. Synthetic silica has been an essential ingredient in the silicone industry for several years.

Chemically, Liquid silicone rubber is a group of thermo set elastomers, which is connected with a backbone consisting alternating silicone, oxygen atoms and methyl, or vinyl side groups.

Dow Corning in the late 1970s developed the liquid silicone rubber, since then Liquid
Silicone rubbers have grown from strength to strength. This has been made possible due to their good material and processing properties.

Not unexpectedly, application for liquid silicone rubber products is found in almost all sectors of industry. Some important products made of silicone rubber are gaskets, seals, keypads, insulators in high voltage applications, and baby bottle nipples.

Thanks to the sterilization and good biocompatibility qualities of liquid silicone rubber, the material is used in many medical applications.

In the manufacture of LSR products one can use both fumed and precipitated silica’s. Liquid silicone rubber is found in viscosities from thin, flow able liquids. It can be pigmented in a ample range of colors. The material can be used for liquid dispensing, including extrusion, pouring and fabric coating. The material that is used in the liquid injection molding (LIM) is liquid silicone rubber

When compared to solid silicone rubber, Liquid silicone rubber has the low thickness that is contributing to produce precision, tight tolerance parts. Thanks to their low viscosity, the material can be pumped through pipelines and tubes to the vulcanization equipment. The thermosetting nature of the material, liquid silicone rubber liquid silicone injection molding should be treated specially.

Liquid silicone rubber is used in high precision such as seals, sealing membranes, infant products electric connectors and multi-pin connectors.

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