What is Ceramifiable Silicone Rubber？

　　Ceramifiable silicone rubber is a new type of functional silicone composite material,taking silicone rubber as the polymer matrix and compounded with ceramic-forming inorganic fillers,fluxing agents,reinforcing agents and other additives.

 

　　At room temperature,it behaves like conventional elastic silicone rubber:flexible,easy to extrude,mold and process,with good electrical insulation,weather resistance and low smoke performance.Once exposed to high temperature or open flame(usually above 600°C),it will undergo a ceramization reaction rapidly,converting from soft elastomer into a dense,rigid,crack-resistant ceramic shell instead of melting or dripping like common organics.

 

　　The formed ceramic layer works as a solid barrier to block flame,isolate heat and hot toxic gas,and maintain stable insulation for a long time under fire conditions.Most qualified grades are halogen-free,low-toxic and self-extinguishing,meeting UL94 V-0 flame retardant standard.

 

　　Thanks to this unique fire-resistant conversion mechanism,ceramifiable silicone rubber is widely adopted in fire-resistant cable insulation&accessories,new energy battery thermal runaway protection,fire sealing gaskets,aerospace and rail transit fireproof components.It ensures circuit survival and fire containment during fire accidents,which is critical for life and asset safety.