For fixing Expanded Polystyrene (EPS) boards and Mineral Wool boards as well as for applying a thin armoured layer for thermal insulation of buildings
Ceresit CT 87 mortar is designed to warm up external walls of the buildings by application of external thermal insulation composite system using EPS- or mineral wool façade boards. It is an element of following ETICS from Ceresit: Ceresit Ceretherm Premium or Ceresit Ceretherm Wool Premium and Ceresit Ceretherm Express. CT 87 mortar is used for fixing of EPS- or mineral wool façade boards and for applying the reinforcing protection layer to insulate the newly constructed objects as well as older buildings to be thermo-renovated. CT 87 is additionally reinforced with fibres, therefore it is more resistant to the formation of cracks and hairlines. The application of CT 87 (colour, surface and organic modifiers) allows for omitting the substrate preparation process by priming with the priming paints before the application of any Ceresit plasters. The content of special light fillers gives the more flexible, light and homogenous consistency, it is easier to be stirred, applied and spread, thus increasing the efficiency of the mortar.