Silicon (formally referred to as polymerized siloxane or even polysiloxane) refers to any of a number of polymers containing alternate silicon and air atoms, whose properties are dependant on the organic groups attached to the silicon atoms. Silicone is fluid, resinous, rubbery, extremely stable within high temperatures, and water-repellent, making them ideal for use as adhesives, lubricants, hydraulic oils and insulation in the broad array of fields.
One of the important elements of silicone is its ability to maintain it’s mechanical properties more than a wide range of temperatures, -80° F : 400° F (60° C : 205° C) and in some cases normality could be sustained in an even broader selection of temperatures.
Silicone is often mistakenly known as “silicon”. Although silicones contain silicon atoms, they are not made up exclusively of silicon, and have completely different physical features from the element silicon.
Silicone mechanical seals and pads are available in open cell foams, closed cell sponges, different durometer solids, and is readily shaped in a wide variety of colors. There are high tear strength silicones, reinforced silicones, electrically conductive silicones, and thermally conductive silicones.
There are silicone foams that are UL94-V0 rated which is frequently required in the transit and digital sectors. It performs well within compression set tests, and silicon is also naturally UV resistant that makes it ideal for numerous outdoor applications.
Intensive temperature resistance, stability with extreme environmental and chemical stress, and durability are some of the reasons silicone benefits aviation and aerospace. Silicone plastic sealants are currently used to fasten interior and exterior doors, windows and paneling. Fluid resistance makes silicone ideal for energy control diaphragms, hydraulic lines plus cable clamp blocks. Silicone plastic keypads are even used in computers on earth and in space.
Silicone sealants are commonly used to seal gaps, joints, and crevices in buildings being constructed or renovated. Both professional and retail grade silicones are abundantly available for this purpose. These types of one-part silicone sealants cure by absorbing atmospheric moisture, which assists with the professional installation. A moistened finger or damp cloth is all that is needed to apply, and many do-it-yourselfers typically use this method to apply silicone caulking.
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Similar methods work for urethane caulking, the largest competitor of silicon caulking.
Silicone demand in the US will certainly grow 4. 7 percent yearly through 2010, driven by efficiency and environmental advantages over polymer-bonded, polyurethane, and rubber. Silicone liquids have, and will continue to have the maximum demand. Demand for silicone gels will grow faster based on restored growth in the electronics sector.
Silicon gels are essential to the electronics field, where highly specialized applications call for greater demands on the sealing components. Silicone rubber is used to insulate, seal and protect circuits, motor gaskets, control unit gaskets, electronic encapsulation, and special elements for decoupling noise.