Surface Preparation and Painting Schedule
Allow new masonry to dry for 14 to 28 days under normal weather conditions before painting. Surface to be painted should be clean, dry, free from oil, grease, dust, dirt, and other contaminants. If painting must be done immediately after the 14-day curing period, treat with a solution of 1 part Dutch Boy® Nalcrete™ Masonry Neutralizer 7000 diluted in 16 parts water. Apply the solution liberally using a brush or roller. Let dry overnight before rinsing with water to remove white crystals that will have formed on the surface. Let dry before painting. If the concrete has been cured for 28 days or more, there is no need to apply a neutralizer.
Scrape off all loose, scaling, flaking, and peeling paint manually or by using a paint and varnish remover, as necessary. When using paint removers, make sure to thoroughly clean the residue before painting. Let dry.
In case of mildew infestation, treat with a bleach solution (1:3 laundry bleach to water, respectively) by swabbing or brushing. To ensure proper treatment, allow to stand on surface for 24 hours before washing off residue. Let dry.