This floor is the original from the mid 1960's. It was unsuccessfully patched in a few spots. It had a variety of typical problems including spawling, efflorescence, cracking, and sinking sections. You can see where it fell off the footer around the perimeter. On top of all that, it had high moisture content, and required a moisture barrier primer. High moisture content is common in older homes as the garage concrete is commonly on top of little or no stone, the area under the pad has settled, and there is no plastic between the concrete and what is below it. We did this over a period of 3 days, and the results were outstanding, as you can see.