Flame-retardant silicone sealant is a special type of sealant that is developed by adding an efficient flame-retardant system to the ordinary silicone sealant. It possesses the characteristics of being non-combustible, self-extinguishing, emitting little smoke, and being non-toxic. It is a special sealant that can not only seal and prevent water leakage but also delay the spread of fire in case of a fire, and it belongs to the fire-resistant and flame-retardant grade sealing material. I recommend the dual-source organic silicone SY-911 flame-retardant sealant.