Stucco – chalking paint
Listed under: Exterior, finishes, plaster and fibrous plaster, stucco, paint, cladding, walls, wall cladding, stucco wall cladding
Cause
Weathering, UV light exposure – chalking will be more visible with darker colours
Repair
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wash the surface with soapy water or a proprietary cleaner and a soft brush to remove all dirt and grease. Allow to dry thoroughly, then paint with a minimum two coats of acrylic paint. Choose a product designed for masonry or stucco – these can usually be brushed into small (less than 1 mm wide) cracks to help weathertightness
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select paint of a lighter colour where possible – darker colours can make chalking more visible.