Quote:
Originally Posted by cabmando
Hard water could leave calcium deposits on the crete and discolor it. Also if you have Iron it could iron stain. He's probably just giving the sealer time to cure would be my guess. The sealers are all water based at this point.
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They put sealers on soft concrete now? I just had a pour done and the contractor said he would be back in a month to seal it.
It got into the 20s the night of the pour and he was concerned. Curing concrete is an exothermic process, and we put straw over it to help keep the heat in. I used an infrared thermometer which read surface temps in the 30s when it was 24 degrees out.