Corresponds to C2TE S1 according to din EN 12 004 and “Guideline for flexible mortar”. Deformable, compensates for stresses resulting from temperature fluctuations and shrinkage. Waterproof and temperature-resistant from -30 °C to +80 °C, universally usable inside and outside, on walls and floors. For laying on mastic asphalt (indoor use only) as well as Allen cement and gypsum-bound installation substrates, For laying polyurethane foam panels on basement walls in contact with the ground (perimeter insulation) on plaster, concrete, masonry and sealing slurries; for mineral fiber boards (e.g. Isover or Rockwool), for sawn rigid foam boards (e.g. Styrofoam or Hostapor), For repairing and leveling out minor unevenness on walls and floors, before laying tiles and slabs. Prompt purc.