Magnesium-based inorganic glue biggest drawback is easy to absorb moisture and back to halogen.In order to solve these problems,this paper analyzed the causes and harm of recurrent halogen and efflorescence of magnesium-based inorganic glue,And explored inorganic modifier,organic modifier alone used and inorganic,organic modifier compound used for its anti-halogen modification effect respectively.Thereby,it can delay or solve the problems of recurrent halogen and efflorescence.It is showed that: ferric chloride could raise anti-halogen effect well when used alone.In w...