WATERPROOF SILICONE EMULSION, WATERPROOF BOARD EXHIBITING EXCELLENT CRACK RESISTANCE, AND MANUFACTURING METHOD THEREFOR

The present invention relates to a waterproof silicone emulsion, a waterproof board exhibiting excellent crack resistance, and a manufacturing method therefor and, more specifically, to: a waterproof silicone emulsion comprising a silicone oil and an emulsifier; a waterproof board comprising a cured product of an aqueous gypsum slurry, which comprises calcium sulfate hemihydrate, a silicone oil and a specific catalyst, and exhibiting excellent crack resistance and a low total absorptance; and a manufacturing method therefor.