Most people in the world have five senses that they use to perceive various stimuli and construct their version of reality around them. While there are some that are disadvantaged in this regard, such as people that have vision problems or are hard of hearing, but suffice it to say that even people that have their full faculties including their senses of taste, touch, sight, hearing and smell will still have a perception of the world that might not be as factual as they would assume.
You are restricted by the biological limits of your senses, and we can think of no better representation of that than concrete cleaning. When you pressure wash a concrete surface, this surfaced might look rather dry after four to six hours. The thing is, your eyes are playing tricks on you because of the fact that there is still tons of moisture inside that you won’t be perceptible to your visual input. Concrete might look really solid, but it actually consists of a porous network that is surprisingly spongy when you analyze it at a molecular level.
Hence, it would be far better if you waited a minimum of twenty four hours before sealing concrete after getting done with washing it using high pressure water jets. This will ensure that water that is deep inside the structure of the concrete will evaporate into the atmosphere, thereby leaving absolutely none that would ruin the sealant and force you to start all over again. Taking things a step further by waiting thirty six hours virtually guarantees that your concrete will be bone dry, and it’s always better to be safe than sorry.
