Dry mortar mixture

The invention relates to a dry of mud, comprising: a) 0.5 to water and solid adhesive, b) is 0 wt% filler, c) 0 to 3.5wt% thickening agent, d) to 1.0 and a redispersible polymer powder, the is characterised is - comprising: e) 0.0001 to 1.0wt% one or more of compound; The comprises following components by total weight of the dry recovery of the total weight of the block; and total amount is 100wt%.