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Q. - I have some concerns about the steps I'm taking to fill in holes and cracks before I begin staining.
The concrete filler I'm using is grey in color and stands out compared to the actual concrete. I have to fill so many holes from the nails used to lay the tack strips, that I'm now concerned the stain will not take, or will show major discoloration than the rest of the floor. My room is approx 450 sq.ft and there are holes all around it at least 1/2 inch apart and several long cracks that need filling in the center of the room. It's starting to look worse than before I filled them.
What's the best way to handle this problem?
Hello Terri,
A. - If the cracks are only hairline cracks, meaning you cannot place a coin into them, then I wouldn't try to patch them. Hairline cracks will add character to the concrete and is actually a desirable when acid staining. If you must patch them and as for the holes you're patching, the patching material will likely stain a different color than the rest of the concrete, as you suspected. You should take some of the patching material and put it on a piece of cardboard or the such to make a small test board(s). Then when you do a color test on the concrete, in an out of the place such as a closet, then you can also stain the patching test board and compare the two together. It may be that you can do a second coat on the patching to bring them closer or vice versa. Or it may be that you need to use a darker color altogether to get them to blend, either by doing a darker border or the entire floor darker. Also it may be that you simply need to highlight your floor. You could stain the entire floor a lighter color, and then highlight the floor with a darker color, using the highlighting techniques found in the blog, or in the audio book segment named highlighting found at the www.ConcreteCamouflage.com website, to blend in and camouflage the patches.
You can purchase the highlighting audio segment for .99 cents, and there is also a patching segment for only .59 cents that would have some great tips too, and then there is the using multiple colors segment for borders. However, when you purchase products from Concrete Camouflage, then you will get two free audio book segments in your receipt email. So I recommend that you order yourself some sample bottles of a few different colors that you may like to try. Be sure to get some light and some dark and then take the time to do some testing on the concrete in an out of the way place as mentioned and also on the test board(s). Try the different colors and also try the highlighting as suggested, and you should find that you can camouflage the patches and also create a unique and cool looking effect that you may have not even considered.
Here's the audio book segments link: http://www.concretecamouflage.com/cat-downloadable-concrete-staining-guides.cfm
I hope this helps.