Liquid silicone rubber is a high molecular weight elastic material with silicon oxygen bonds as the main chain and a unique three-dimensional network structure. Its liquid form and rapid curing characteristics make it significantly advantageous in the industrial field. The core characteristics of this material stem from its molecular structure - alternating silicon and oxygen atoms form long chains, endowing it with weather resistance and thermal stability beyond traditional organic rubber. In the extreme temperature range of -60 ℃ to 250 ℃, LSR can still maintain the unique flexibility and resilience of elastomers, making it an ideal choice for aerospace, automotive electronics, and other industries that need to cope with severe temperature differences.

Chemical inertness is another characteristic of liquid silicone rubber. The surface of its molecular chain is enveloped by stable methyl groups, forming a natural hydrophobic barrier that can effectively resist the erosion of acid-base solutions, salt spray, ozone, and various organic solvents. This characteristic is particularly important in the medical field, such as implantable medical devices or catheter components that come into long-term contact with body fluids. The biocompatibility of LSR has been certified by the FDA, and its surface is not prone to bacterial growth and will not cause human rejection reactions, ensuring safety in contact with human tissues.

In terms of electrical performance, LSR exhibits excellent insulation and dielectric stability. Its molecular structure does not contain conductive particles, and its volume resistivity can reach the order of 10 ^ 15 Ω· cm, maintaining stable insulation performance even in humid or high-temperature environments. This feature makes it widely used as a sealing component for high-voltage power equipment, waterproof components for 5G communication base stations, and insulation protection for new energy vehicle battery packs. Meanwhile, the low compression permanent deformation characteristic of LSR (usually less than 10%) ensures that the seal can maintain a tight fit even under long-term compression, effectively preventing dust and liquid infiltration.

Transparency and color flexibility are the unique highlights of LSR. Pure state LSR has a transmittance close to that of crystal, which can clearly transmit visible light and some ultraviolet spectra. This characteristic is used in optical lenses, LED packaging, and other scenes that require light conduction. By adding color masterbatch, LSR can present a rich texture from matte to high gloss, and the color uniformity far exceeds that of traditional vulcanized rubber, meeting the strict requirements for appearance design in the consumer electronics field.

The innovation of processing technology has further expanded the application boundaries of LSR. Its low viscosity characteristics allow for high-precision, complex structure one-time molding through liquid injection molding (LIM) process, with a production cycle shortened to less than 30 seconds, and the product has no burrs or requires secondary trimming. The deep integration of this process with automated production lines has enabled LSR to shine in areas where miniaturization and integration trends are evident, such as flexible sensors for wearable devices and packaging of medical microfluidic chips.

Regarding liquid silicone rubber, please refer to our website for details: IOTA Liquid Silicone Rubber