Magnesium hydroxide is a type of filling flame retardant with the chemical formuta Mg(OH) 2. It is applicable to flame retardant field of rubber and plastic products,such as Mining conveyor belt,Mining air duct coated doth,Hose,Siab,Car- pet,Rubber liner,PVC cable material,Wire and cable sheath,Leather,Fireproof board,Unsaturated resin,Building materi- ais Damping paste,Damping plate.etc.This product can take some features like flame retardant,smoke suppressant,an- tistatic,and has advantages of low cost and highperformance.It is an inorganic compound,non-toxic and will not pro- duce secondary pollution.