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What is liquid silicone rubber (LSR)？

Liquid Silicone Rubbers are two-part dispensible silicone materials that are readily combined and rapidly heat-cured into sturdy elastomers. With superior processing time, reduced cycle instances and decrease manufacturing prices, liquid silicone rubbers might help together with your industrial and meals contact formulation needs.
Appropriate fabrication strategies for liquid silicone rubbers embody liquid injection molding and coating. Dow’s IMAGIN3D™ Liquid Silicone Rubber is specifically designed for 3D printing.
LSR properties:

Biocompatibility: Under intensive testing, liquid silicone rubber has demonstrated superior compatibility with human tissue and physique fluids and is hypoallergenic, making it a wise choice for skin-contact products. In comparability to other elastomers, liquid silicone rubber is immune to bacteria growth and will not stain or corrode different materials.
Tasteless and odorless: LSR is tasteless and odorless and can be formulated to comply with stringent FDA requirements required for food and beverage and baby products..
Durable: Liquid silicone rubber parts can stand up to extreme temperatures, making LSR a super alternative for parts used in automobiles beneath the hood and in outdoor functions.

Chemical resistance: Liquid silicone rubber resists water, oxidation, and some chemical options similar to acids and alkali. The materials may be sterilized by way of quite a lot of methods, together with steam autoclaving, ethylene oxide (ETO), gamma, e-beam, and quite a few different methods used for medical and healthcare merchandise.
Temperature endurance: Compared to different elastomers, molded silicone can face up to a variety of excessive to low-temperature extremes. Liquidsilicone will remain secure in temperatures ranging from minus 60 degrees Celsius to 180 degrees Celsius.
Mechanical properties: Liquid silicone rubber has good elongation, excessive tear and tensile strength, excellent flexibility, and a hardness vary mostly between 5 to 80 Shore A.
Electrical properties: Liquid silicone rubber additionally has wonderful insulating properties, beneficial for a bunch of electrical functions. Compared to conventional insulating materials, silicone can carry out in far larger and lower temperatures.
Transparency and pigmentation: Liquid silicone rubber is inherently translucent. Its pure color is white and conducive to pigmentation for producing customized, molded products in a variety of colors.
Types Of Liquid Silicone Rubber
Liquid silicone rubber has differing kinds and compositions. Each kind has various traits.

silicone rubber liquid for making bushings
General Purpose LSR
This is a extensively used materials with intensive purposes due to its flexibility, biocompatibility, and warmth resistance. Typical makes use of of basic objective LSR type embrace seals, gaskets, and industrial components.

High-Temperature LSR
High-temperature liquid silicone rubber materials can face up to extreme heat exposure with out degrading or compromising its qualities. Common functions of this LSR embrace industrial gear, automotive elements, and electronic components.

Medical Grade LSR
This kind of liquid silicone rubber is formulated to fulfill the strict biocompatibility and safety requirements for medical and healthcare merchandise. Medical grade LSR supplies are sterilizable and biocompatible, making them suitable for purposes that require contact with the human body.

Self-Bonding LSR
Self-bonding LSR materials exhibits glorious properties of adhering to itself with out utilizing other adhesives. Therefore, it is good for making complicated assemblies without depending on conventional bonding techniques.

Food-Grade LSR
The food grade is much like the medical grade LSR. It meets strict requirements for contact with meals and beverages. Baby products, baking molds, and kitchen utensils are typical food-grade liquid silicone materials purposes.

Electrically Conductive LSR
It incorporates electrostatic discharge (ESD) additives that supply electrical conductivity properties. This grade is often used in purposes with electrical conductivity and flexibility of silicone rubber necessities, including EMI/RFI shielding and flexible circuits.

Optically-Clear LSR
Optically clear liquid silicone rubber is suitable for making products like lenses, light guides, and different optical elements and tools with transparency and optical clarity requirements.





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