Silicone is a synthetic polymer that acts like both plastic and rubber, offering rubbery flexibility but with plastic-like moldability, though it's chemically distinct from petroleum-based plastics, using a silicon-oxygen backbone instead of carbon, making it more heat-resistant, durable, and stable, leading to its use in cookware, medical devices, and sealants as a high-performance alternative.
Silicone is a type of synthetic rubber made by modifying the naturally-occurring chemical element of silicon. Due to this modification, silicone rubber is resistant to heat, fungus, and chemicals. On top of that, silicone rubber stands up well against ozone and intense UV rays.
Food-grade silicone is safer, more durable, and more resistant to heat, chemicals, and aging than rubber. It meets FDA standards, ensuring hygiene and safety in food and medical applications.
Unlike plastic, silicone is an elastomer, meaning it combines the elasticity of rubber with the strength of a solid material. Its unique properties, such as resistance to heat, chemicals, and environmental factors, make it suitable for high-performance applications.
IS SILICONE SAFE? Many experts and authorities consider silicone completely safe for food use. For example Health Canada states: "There are no known health hazards associated with use of silicone cookware. Silicone rubber does not react with food or beverages, or produce any hazardous fumes."
Silicones, particularly dimethicone, can cause skin irritation or allergic reactions in some people, especially those with sensitive skin. These reactions can manifest as redness, itching, or breakouts. Some people are concerned that silicones may clog pores, causing blackheads and acne.
Starting June 6, 2027, the European Union will enforce new restrictions under the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulation, targeting specific cyclic silicones used in cosmetics.
Migration of chemicals into air: When silicone products are exposed to high temperatures (think baking), the chemicals in the product can be released into the air (2). The released particles tend to persist in the air and pose a health hazard to the lungs (2).
Silicone is generally considered safe for typical cooking temperatures (up to around 425°F/220°C) as it's heat-resistant and doesn't leach BPA/phthalates, but overheating it can cause thermal decomposition, potentially releasing chemicals like siloxanes into food and air, which some studies suggest may pose health risks, so using high-quality, food-grade silicone and avoiding extreme heat or direct flame is best.
Silicone is generally considered safer than plastic due to its high chemical resistance and lack of leaching harmful chemicals like BPA.
Currently, there are no recorded health hazards linked to silicone rubber. This makes silicone a necessity for industries like health care, early years, food and construction, which need non-toxic materials to meet specific standards.
Like fossil fuel plastics, silicone is a synthetic substance that does not benignly biodegrade. Instead, it lasts forever and similarly sheds microplastics and nanoplastics, including during use and when discarded. Most silicone ends up in landfills, incinerators, and the environment at the end of its usefulness.
Its chemical stability ensures it remains safe even at high temperatures. Properly certified FDA silicone and silicone sponge products are completely safe when used as intended. Misconceptions about its safety often arise from unregulated or non-certified materials.
High-consistency silicone rubber is also called “solid silicone” or “gum stock.” It is made up of high molecular weight polysiloxane chains. HCR can contain a variety of fillers to enhance special properties, such as hardness and heat resistance.
No, silicone rubber is generally non-toxic when used correctly. It is safe for medical devices, kitchenware, and industrial applications.
Choose rubber if you're dealing with oils, fuels, lower temperatures, or need a cost-effective solution. Choose silicone if you need high heat resistance, FDA compliance, weather exposure durability, or flexibility across temperature extremes.
Although silicone formulated into implants of the proper size, shape, and surface characteristics can induce solid-state carcinogenesis in the susceptible rodent species associated with this phenomenon, it is not a specific response to silicone.
Some bakers avoid silicone bakeware because it's a poor heat conductor, leading to paler, less browned baked goods; its flexibility makes it wobbly and difficult to transfer; it can absorb odors and stains; and some concern exists over potential chemical leaching at high temperatures, though many prefer it for its easy release and cleanup.
Incapable of being absorbed in body.
Affected patients typically experience some combination of fatigue, myalgia, joint pain, sicca syndrome (dry eyes and mouth), synovitis, rash, alopecia, muscular weakness or lymphadenopathy, and autoantibody formation.
Silicon and the Human Body
For instance, it has been proposed that silicon plays a part in immune system health, atherosclerosis risk reduction, reduced metal accumulation in Alzheimer's disease, structural integrity of nails, hair, and skin, overall collagen synthesis, bone mineralization, and bone health.
You should not use silicone grease on surfaces requiring strong adhesion (like painted areas), electrical contacts prone to arcing (causing oxidation and failure), brake system friction parts, silicone rubber itself (as it can interact), or in applications with extreme pressure or high-friction metal-on-metal contact where it can be displaced. It's also not for general cleaning as it attracts dirt and isn't a solvent.
The crackers contain partially hydrogenated cottonseed oil, a trans fat that has been linked to heart disease, which is why many countries in the EU have prohibited Ritz crackers. (Some locations may sell them with different formulations that adhere to local regulations.)
According to one survey, the highest-quality beauty products come from Japan, the United States, and France (in that order). In this survey, 65 percent of those who used a wide variety of beauty products from different countries placed Japanese products in the number one spot.
If you check the INCI list, silicones can be recognized by different names such as CYCLOMETHICONE, CYCLOPENTASILOXANE, CYCLOHEXASILOXANE, TRISILOXANE, DIMETHICONE, DIMETHICONE COPOLYOL, AMINODIMETHICONE, DIMETHICONOL, DIMETHICONE CROSSPOLYMER, VINYL DIMETHICONE CROSSPOLYMER, TRIMETHYSILOXYSILICATE, ...