I hear this quite a bit. To avoid this we go through a process of etching the stamped concrete before sealing. Imagine the surface of your concrete (even though it has a stamped texture)being equal to 400 grit sandpaper. This is going to be slick. If the stamped concrete is etched before sealing the surface will feel more like 150 grit sandpaper.
I get many calls to fix slick stamped concrete in Omaha and Lincoln. The fix is not easy. The sealer needs to be stripped. After stripping the sealer, the stamped concrete needs to be etched with an acid/water mixture. After neutralizing and flushing with water, re-apply sealer. A lot of concrete contractors will just add silica sand to the sealer- this practice is temporary at best.
Properly installed stamped concrete should not be slippery, regardless of the type of stamps used. Our website is www.toddrosedecorativeconcrete.com
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Stamped concrete, commonly referred to as patterned concrete or imprinted concrete, is concrete that is designed to resemble brick, slate, flagstone, stone, tile and even wood
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