Clean up the space from cement, dust, papers and dirts. Prepare the suitable size of LeichtBric AAC, near to the site. Prepare Base Plaster mortar LM 101 used as the base and Thinbed LM 301/306 as the adhesive material.
Fill up 1/3 of the bucket with water and slowly mix Base Plaster, using mixer until they are mixed evenly, with ratio 4 - 4,5 kg mortar for every 1 liter of water.
Pour mortar Thinbed LM 301/306 on top of the LeichtBric with a trowel. Pull out trowel carefully to allow Thinbed LM 301/306 spread evenly, creating 3 - 5 mm thickness of pattern. Clean up the surface of the block and check the evennes with rubber mallet and water pass.