Features and Benefits

For fixing Expanded Polystyrene (EPS) boards and reinforced layer for thermal insulation of buildings


  • flexible
  • durable
  • good adhesion
  • resistant to weather conditions
  • possibility for machine application

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Ceresit CT 82 mortar is designed to apply EPS-boards within Ceresit ETICS (External Thermal Insulation Composite Systems) with a light-wet method. CT 82 is part of Ceresit Ceretherm Popular. CT 82 mortar is used for applying to the EPS-boards as well as to prepare rainforced layer of newly erected objects and the buildings to be thermo renovated.

Step By Step

Substrate preparation


Preparing the reinforced layer - after the adhesive set in (after 2-3 days) boards should be treated with sandpaper and additionally fixed using mechanical anchors.

Mortar preparation and application


CT 82 should be poured into measured amount of cool clean water and stirred with the drill by means of a mixer until the homogenous mass is obtained without lumps. Preparing the reinforced layer prepared mortar should be applied 2-3 mm layer on EPS-boards using a trowel. On fresh layer glass fibre mesh should be set (10 cm overlaps should be kept).

Filling the mesh


In the next step, the freshly applied mesh, which has been immersed in the adhesive mortar layer, should be thoroughly smoothened with a long steel float.


The next layer can be applied (thickness 1 mm) and smoothed in order to completely hide the reinforcement mesh.