Because of its high polymer content the adhesive can also be used over substrates such as in situ concrete (at least 3 months old), prefabricated concrete elements, gypsum fiber board, sheet rock, heated screed (follow corresponding regulations and data sheets), poured mastic asphalt and autoclaved aerated concrete (AAC) as well as balconies, patios and exterior walls. Servolight can also be used for under water installations (swimming pools), even of glas mosaic and can be used to fill holes and level substrates up to 3/4" (15 mm) thickness.