Stone consolidation silane

TABLE 13.4 Silane Stone Consolidation Products continued... 

Due to the limited reversibility of consolidation treatments for ceramics, new consolidations are carried out only if the object is seriously endangered, e.g. when the ceramic body is crumbling or the surface decoration is flaking off the surface. Materials, such as Paraloid B72 (already mentioned for glass conservation) or silanes and siloxanes (used for stone conservation) can be applied by brush, injection, spray or by immersion. Vacuum impregnation might be useful to achieve deep penetration with the consolidant. 

Silane coupling agents (Plueddemann, 1991) (Table 13.1) have been widely used to inaease the durability of the adhesion between an adhesive and glass this has been suggested as a pretreatment for consolidation of stone... 

The effect of other organosilanes on deteriorated limestone was investigated. Particular attention was paid to the depth of penetration, effects on color, and the degree of consohdation. A solution of acryhc silane in methyltrimethoxysilane was found to be the most suitable consolidants for use on limestone (Bradley, 1987). It was also shown that organosilanes do not encapsulate salt in stone and that soluble salts could be removed by a poulticing technique following consolidation. 

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