The present invention relates to a method for coating an inert or naturally occurring material with a silk polypeptide. It further relates to a coated inert or naturally occurring material obtainable by said method and to uses thereof. It also relates to products comprising said coated material.

Disclosed herein are formulations comprising biologically prepared fibers and methods of preparing said formulations. These formulations can be utilized for repair of structures comprised of a variety of materials, including cementitious material, natural rock, mortar, and concrete. The formulation includes biologically prepared fibers, and a solvent or carrier solution. The formulation may additionally and optionally incorporate at least one enzyme. Once the formulation containing the biologically prepared fibers is applied to a void or crack within the structure, the fibers form a three-dimensional fibrous scaffold configuration in the void of the structure.

The present invention relates to a method for coating an inert or naturally occurring material with a silk polypeptide. It further relates to a coated inert or naturally occurring material obtainable by said method and to uses thereof. It also relates to products comprising said coated material.