Flame retardant solid silicone rubber is a type of silicone rubber material modified by adding flame retardants, which combines the high and low temperature resistance, weather resistance, electrical insulation and excellent flame retardant properties of silicone rubber. It is widely used in fields with strict fire safety requirements. Its definition originates from the addition of flame retardants (such as aluminum hydroxide, magnesium hydroxide, phosphorus/bromine compounds, platinum compounds, etc.) to ordinary silicone rubber (based on polydimethylsiloxane and supplemented with fillers such as silica) to suppress combustion through physical or chemical reactions, forming a solid material.

The flame retardancy of this material is reflected in slowing down flame spread, reducing heat release, and minimizing toxic smoke, rather than being completely non combustible. Its flame retardant mechanism includes heat absorption (such as the decomposition of aluminum hydroxide and magnesium hydroxide, which absorbs heat and dilutes combustible gases), covering and isolation (flame retardants decompose to form insulation layers, such as zinc borate and ammonium polyphosphate, which isolate oxygen and heat sources), inhibiting chain reactions (capturing free radicals, interrupting combustion chain reactions), and dilution effects (releasing non combustible gases and reducing combustible gas concentrations).

The core characteristics of flame-retardant solid silicone rubber include high temperature/cold resistance (can be used for a long time at -60 ° C~250 ° C, maintains elasticity at high temperatures, and does not become brittle at low temperatures), weather resistance and chemical stability (UV resistance, weathering resistance, oil resistance, solvent resistance, acid and alkali resistance), electrical insulation (broadband high insulation performance, stable in humid environments), environmental protection and safety (low smoke, halogen-free, non-toxic, compliant with RoHS and REACH, does not produce corrosive gases during combustion), and physical properties (high elasticity, small compression permanent deformation, transparent or colorable).

These characteristics make it suitable for fire-resistant flooring, sealing strips, waterproof layers, and fire-resistant sealing of doors and windows in the construction industry; Used in the automotive industry for battery pack seals, high-voltage cable sheaths, tires, and sealing gaskets (especially for electric vehicle battery fire prevention); Used in the field of electronic appliances for wire and cable sheaths (low smoke halogen-free flame retardant), connectors, insulation gaskets, and thermal conductive flame retardant materials for electronic components (such as Apple's designated high-end model SH6280U); Used in aerospace for high-temperature resistant seals and insulation materials; Used in industrial equipment for ovens, spray equipment seals, and bus duct dividers.

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