The present invention relates to a protein/peptide composition for protection of surfaces comprising an aqueous solution of at least two components, the first component (A) being a water-soluble protein or a mixture of water-soluble proteins having an average molecular weight Mw of at least 30000, and being capable of forming a gel, and the second component (B) being a water-soluble peptide or a mixture of water-soluble peptides mixture having an average molecular weight of 200-10000, and being capable of inhibiting gel formation in said composition. The present invention further relates to a method for preparing such a composition, the use of the composition for protecting a surface, a method for protecting a substrate surface using the composition, and to a substrate surface coated with the composition.