The conservation of historic monuments is always a complex task that requires an understanding of the historic context of the monuments, the materials and technologies used as well as the opportunities and limits of the conservation materials and techniques that are available. Most conservation projects deal with objects that have already undergone several modifications, restorations and refurbishments in their lifetime so that the aspect of the compatibility of different materials becomes particularly important. The conservation of inorganic materials such as stone, mortar or plaster requires traditional inorganic consolidants. Traditional organic materials for stone conservation include various waxes, oils, acrylates and epoxides. One of the most successfully used conservation material that allows the consolidation of heavily disintegrated structures is silicic acid esters. Nanolime allows consolidation by carbonation, similar to the processes that occur during the setting of conventional lime mortars, though also in combination with silicic acid esters.