The present invention relates to a polymeric composition for coating solid substrates (S) consisting of: a) 0.5-90% by weight of polyethylene glycol with a weight-average molecular weight in the range from 1500 to 20 000 g/mol (component A), b) 0.5-20% by weight of a water-soluble polyvinylpyrrolidone with a Fikentscher K value in the range from 12 to 90 (component B), c) 0-95% by weight of a solvent (L), and d) 0-70% by weight of one or more non-polymeric aids (component C).
