Can You Paint Concrete Without Etching. Unlike typical concrete acid blends, eco etch pro removes rust, efflorescence and deep ground in dirt without burning your skin or cause respiratory damage. If you choose to paint concrete without prepping and etching the surface first, the paint is likely to wear off quickly. You will need to clean the concrete surface from oil and dirt with a brush and a clean, wet cloth until the surface is evenly damp.
An acid etch shouldn't be needed unless the concrete finish is extra slick. A dull gray concrete path can look out of place in a verdant garden, or feel uninviting next to the lawn in a simple backyard. It cures relatively quickly with or without a well ventilated room.
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When painting external concrete, you can follow the basic steps for internal concrete. Also read the instructions on the paint can because it may need a primer, especially if your concrete has previously had paint or sealer on it. You will need to clean the concrete surface from oil and dirt with a brush and a clean, wet cloth until the surface is evenly damp. The sheen isn't a problem.
