Sometimes it is not only a few cracks or minor damage that can be found on older façades. In the case of smaller scale render flaking and/or edge breakouts, Baumit MultiContact MC55 W can be used as a filling mortar for repair or reprofiling once the damage has been removed.
Physically remove the peeling paint and clean the façade. The resulting uneven surface will then need to be rendered and a new quality façade render applied.
Remove the peeling paint and clean the façade using a scraper.
For better adhesion and bonding of the render, apply Baumit MultiPrimer bonding primer.
Render the façade using Baumit MultiContact MC55 W and reinforce with StarTex fibre glass reinforcing mesh.
Once the new render has matured, apply a new façade paint. Choose from Baumit StarColor, PuraCOlor, NanoporColor or SilikonColor.
You will need Baumit MultiContact MC55 W renovation plaster, Baumit StarTex fibre glass mesh, Baumit MultiPrimer bonding primer, a spatula, anti-corrosive smoother, masonry spoon, hard bristle brush and suitable mixing bucket.
The surface of the façade must be firm and cohesive, free of algae and cracks. Physically remove the peeling paint using a spatula. Brush or pressure wash the dusty and dirty façade. If the façade still has other deficiencies, it is necessary to remove them first.
Depending on the absorbency of the render, dilute the Baumit MultiPrimer bonding primer with water 1:1 to 1:5 and mix well. Apply the primer onto the render using a brush, a roller, or spray. When applying multiple layers, always apply to a dry layer. Curing time before applying the render is at least 12 hours.
Apply the Baumit MultiContact MC 55 W to the dry render using an anti-corrosion toothed smoother and insert the fiberglass mesh. After slight drying of the first layer, apply the second thin layer, and after sufficient drying smooth the surface with a polystyrene, felt or foam smoother. Render width 3 - 5 mm.
Apply two layers of high quality façade paint to the clean façade. The first coat is applied diluted with 10 - 15% water. After a break of a min. of 12 hours we apply 1 to 2 coats of the façade paint as required. Allow a min. of 4 hours between each coat.
Baumit façade paint may also be applied using airless spraying. It allows fast and even application of the façade paint in a short time even on large uniform surfaces.