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What is liquid silicone rubber (LSR)？

Liquid Silicone Rubbers are two-part dispensible silicone materials which may be readily mixed and rapidly heat-cured into sturdy elastomers. With superior processing time, lowered cycle instances and lower production costs, liquid silicone rubbers might help 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 particularly designed for 3D printing.
LSR properties:

Biocompatibility: Under in depth testing, liquid silicone rubber has demonstrated superior compatibility with human tissue and body fluids and is hypoallergenic, making it a good choice for skin-contact products. In comparability to other elastomers, liquid silicone rubber is resistant to micro organism growth and will not stain or corrode different supplies.
Tasteless and odorless: LSR is tasteless and odorless and can be formulated to adjust to stringent FDA requirements required for meals and beverage and baby products..
Durable: Liquid silicone rubber components can face up to extreme temperatures, making LSR an ideal alternative for elements used in automobiles under the hood and in outside applications.
Chemical resistance: Liquid silicone rubber resists water, oxidation, and some chemical solutions similar to acids and alkali. The material may be sterilized through a selection of strategies, together with steam autoclaving, ethylene oxide (ETO), gamma, e-beam, and numerous different methods used for medical and healthcare products.
Temperature endurance: Compared to other elastomers, molded silicone can stand up to a extensive range of high to low-temperature extremes. It will remain steady in temperatures starting from minus 60 levels Celsius to 180 levels Celsius.
Mechanical properties: Liquid silicone rubber has good elongation, excessive tear and tensile energy, excellent flexibility, and a hardness range most commonly between 5 to 80 Shore A.
Electrical properties: Liquid silicone rubber also has excellent insulating properties, beneficial for a number of electrical purposes. Compared to traditional insulating materials, silicone can carry out in far greater and decrease temperatures.
Transparency and pigmentation: Liquid silicone rubber is inherently translucent. Its natural shade is white and conducive to pigmentation for producing custom, molded products in quite lots of colours.
Types Of Liquid Silicone Rubber
Liquid silicone rubber has different types and compositions. Each kind has varying traits.


silicone rubber liquid for making bushings
General Purpose LSR
This is a broadly used materials with in depth purposes as a end result of its flexibility, biocompatibility, and heat resistance. Typical uses of general purpose LSR sort embody seals, gaskets, and industrial parts.

High-Temperature LSR
High-temperature liquid silicone rubber materials can face up to excessive heat publicity without degrading or compromising its qualities. Common functions of this LSR embrace industrial tools, automotive components, and digital parts.

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

Self-Bonding LSR
Self-bonding LSR materials exhibits wonderful properties of adhering to itself with out using other adhesives. Therefore, it is good for making complicated assemblies with out relying on traditional bonding methods.

Food-Grade LSR
The food grade is similar to the medical grade LSR. SLBAO Silicone Additive meets strict requirements for contact with food and drinks. Baby products, baking molds, and kitchen utensils are typical food-grade liquid silicone materials applications.

Electrically Conductive LSR
It accommodates electrostatic discharge (ESD) additives that offer electrical conductivity properties. This grade is usually used in purposes with electrical conductivity and suppleness of silicone rubber requirements, together with EMI/RFI shielding and flexible circuits.

Optically-Clear LSR
Optically clear liquid silicone rubber is appropriate for making products like lenses, gentle guides, and other optical parts and gear with transparency and optical clarity requirements.



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