Meisterprüfung Maler Und Anstreicher Practice Questions - Meisterprüfung Maler Und Anstreicher (Austria) Exam

The efflorescence consists of water-soluble mineral salts transported by moisture; the substrate must be dried, the moisture source eliminated, and salts removed dry by brushing without water. The efflorescence is living fungal mycelium; it must be washed immediately with hot water and biocidal chlorine bleach. The efflorescence consists of insoluble calcium silicates; it can be directly painted over with an acrylic dispersion paint. The efflorescence is caused by excess air entrainment; it must be dissolved and washed deep into the brickwork using high-pressure warm water.