Brio Shrub / Stain Cover Spray can cover and defend the walls from stains, and it dries fastly. It’s formulate gives high hiding power after just one coat to completely eliminate any stain at all by penetrating deep below the surface, and creating a seal for the prevention of new stains. Brio Stain Cover covers any stain when applied evenly over the area to be treated. Fields Of Application: Brio Shrub / Stain Cover Spray is suitable for all stains caused by smoke on walls, mildew, and dirt in general.