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Staining Integrally Colored Concrete

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Question:

Can I acid stain concrete that already has integral pigment in it? We had our floor and shower just done in red-oxide tinted concrete and it ended up being pink! I want to change the color by applying an acid stain.

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Acid-Etched Concrete

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Question:

I applied a concrete stain to a large 8-year-old concrete patio in Reno, Nevada—an area subject to somewhat extreme temperature variations. I initially washed the patio with a mix of muriatic acid and water to clean it. I hosed it off, waited a day or so, and applied the stain with a sprayer, following the manufacturer's directions. Two years later, the patio now has areas of peeling. I would like to re-stain the whole patio again to make the color more uniform. I have heard that if you have washed a patio with muriatic acid, you cannot acid stain it. I am trying to find an expert who can tell me how to properly prep the surface, apply the stain and protect it. The stain I initially used was an acrylic.

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Changing the Color ofa Stamped Walkway

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Question:

How can I change the color of a stamped slab after it has been poured? The customer was not happy with gray and now wants a reddish-brown color.

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Exces Antiquing Color Causes Problems

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Question:

I have a pool deck in which the sealer seems to be flaking off and coming up in some areas. This is not an issue that we have dealt with before, so I am a little concerned. Can you let us know what is occurring and how we can remedy this issue?

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Curing Colored Concret

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Question:

This integrally colored floor was cured with a non-breathable curing paper. What are the white marks on the surface, and how do we remove them?

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