Technical Digest - Breathability & Mositure Movement (Staining)

Keim Mineral Paint systems are highly breathable and allow free passage of moisture vapour through the substrate and paint coating. Where buildings have previously been decorated using unsuitable, acrylic based coatings which do not allow moisture vapour movement, it is likely that there will have been a build up of moisture within the substrate, resulting in high levels of saturation and/or blistering and flaking paint coatings.