Ecocentric definition, a philosophy or perspective that places intrinsic value on all living organisms and their natural environment, regardless of their perceived usefulness or importance to human beings. See more.
Concrete first must be scoured clean with a concrete cleaning solution, a scrub brush or a cleaning machine, then allowed to dry before any etching takes place. Never clean a new concrete pad until at least one month of curing time has been allowed at minimum. After all the water has been removed, the pad should have at least 48 hours of drying time before you apply any etching to the surface. If the weather is particularly humid, wait up to 72 hours for best results. There are numerous types of etching materials available for use with concrete, but as a general rule, they only need 15 to 30 minutes of time on the surface of the concrete to work their way down through the initial layer and etch the surface.
1- How long should we let the tile and thinset sit before grouting? If you are using basic 12 x 12 porcelain field tile and bagged thinset mortar, wait 8 to 12 hours before grouting. - How long should we let the grout dry? You said you used a non-sanded grout, and if you got it from us, it should look something like this.... Polyblend non-sanded grout typically dries in 6-7 hours. The thinner the tile spacers you put in, the faster it will take the grout to dry.