Staining Concrete Block Walls
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Staining concrete block walls. A concrete wall is less likely to have contaminants than a floor but that doesn t mean that you don t have to prep the wall before staining. Whether it s an indoor area or a drab and dreary retaining wall that brings down the aesthetic a concrete block wall can be transformed with stain which requires less maintenance than paint. A suitable spray pattern is the 15 degree tip held 12 inches from the surface. When groundwater consistently infiltrates the porous concrete walls through capillary action wall stains and related problems can occur.
The first step when preparing concrete block walls is pressure washing. However most concentrates are around a 1 1 ration of concentrate to water. They both add color to your concrete surfaces but with different effects. Step 1 clean the concrete.
This is dependent upon the texture of the block wall. While concrete stain creates a textured natural wash of color to concrete surfaces. Therefore the first step to correct any type of basement wall stain problem is to provide adequate foundation drainage in order to minimize the water infiltration. Any remaining loose paint will need to be removed manually.
The concrete block should readily absorb water and have a rough abraded surface. Prep the concrete wall for staining. What s the difference between concrete dye or concrete stain. Use a commercial style pressure washer and at least 2500 psi.
Staining concrete block walls can provide a pop of color or change the look and feel of a space. If in doubt at all use the concrete etching solution to break up the first layer of the concrete and allow it to absorb the stain. Staining block requires an understanding of the stain itself to determine the exact ratio of stain to water. In many cases the concrete stain may come as a concentrate and need to be mixed.
Mix the etching solution as the manufacturer instructs and allow it to sit on the concrete for at least one hour. The stain has to penetrate and be absorbed by the concrete. The easiest way to clean off the concrete is to use a pressure washer. If it is an outside wall a pressure washer is normally a good choice before staining concrete walls.