The method for the preparation of self-cleaning surfaces having protrusions and recesses, wherein the distance between said protrusions is in a range of from 0.1 to 200 .mu.m and the height of said protrusions is in a range of from 0.1 to 100 .mu.m is performed by applying a solution, dispersion or emulsion containing a hydrophobic material which forms a self-cleaning surface by self-organization when the solvent is evaporated, followed by drying, wherein the material applied can be removed with detergents.

 
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> Insulation Containing Heat Expandable Spherical Additives, Calcium Acetate, Cupric Carbonate, or a Combination Thereof

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