Silicone foam is made of silicone resin as raw material, and combined with flame retardant formulation, which provides foaming power through self-dehydrogenation reaction. It has performance of low density, low compression set, and high and low temperature resistance. Silicone foam material not only has the high elasticity of silicone rubber, but also has the characteristics of foam materials, such as sound absorption and sound insulation, shock absorption and anti-buffering, widely applied for fields with strict material performance requirements such as shock absorption, buffering, sealing, flame retardant, thermal insulation protection, etc. in rail transit and new energy automobile industries.