If you experience eye watering, headaches or dizziness, increase fresh air. Ideal for use on properly prepared interior or exterior vertical surfaces such as stucco, masonry, concrete, concrete block and brick as well as adjacent wood and metal. While you can paint drywall in a day or two, you’ll need a week or more to finish painting concrete. Remove efflorescence, a white powder that forms on moist concrete. No matter how you apply paint, let it dry for a day between coats. The surfaces allow for water and moisture to be absorbed, and even trapped inside the material. Elastomeric paint forms a durable, tough film that provides a waterproof coating to almost any structure.
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The only way to remove it is with scrappers and heat… this is absolutely the most expensive way to remove paint. Acryl60 does really make a very water resistant finish and you can paint in ten years. Remove dirt and grease with a concrete & masonry degreaser & cleaner product. On galvanized metal, use a diluted solution of a product such as concrete & masonry cleaner & etcher to prepare the surface.