Problem Solving Forum
March 13 - March 17, 2017
How do you determine the best type of staining to impart color and seal on a 30 to 40-year-old brick building being restored with some brick-faced additions?
Zenith Czora of Durotech Industries, Inc. on
March 14, 2017:
There are several types of concrete stains availab ...read more There are several types of concrete stains available to choose based on the desired look, the use and the condition of the concrete surface. Most commons are acid stains and acrylic stains. Acid stains create natural, variegated or mottled looks. They are ideal for newer concrete without a lot of cosmetics defects and discoloration. Acid stains will actually highlight existing defects. Acrylic stains create a more consistent appearance and will help hide blemishes and discoloration. They are better for older and more porous concrete. They are also much more user friendly and less toxic because they are water-based or water-extended. There are also several different types of concrete stains which vary according to their binder type. Other concrete stains also act as sealers, so, there is no need to apply an extra coat of a clear sealer. If you want your concrete to look like a painted surface or there are imperfections that can’t be hidden by regular acrylic stain, then a polymer stain (solid color) maybe the best choice. A few coats of polymer stain will make a wall completely uniform in color. There are several different concrete stain application techniques for enhancing the concrete surfaces. These depend on the desired aesthetic look and type of concrete stain being used. Most concrete stains are applied to a continuous wet edge since they are fast drying. Excessive or multiple applications may develop sufficient film formation to restrict the rate of moisture vapor transmission, resulting in possible failure. Surface preparation is very important before applying concrete stains. It must be done thoroughly for a successful result.