New concrete

[robert mitchell]

What is the water test for concrete?

 

[GregL2015]

put a sheet of plastic down on a clean floor and tape it down, wait a day or 2 and see if you have any moisture.

I believe that's how most do it.

 

[James-W]

If you don't mind my asking, what are you planning on doing?

 

[robert mitchell]

put a sealer on the floor

 

[74nova350ss]

put a sealer on the floor

How recent was the concrete poured?

What sealer are you looking to use on it?

 

[robert mitchell]

95 days old--empty garage floor.
Sealer from one of the vendors on the garage journal

 

[Armorpoxy]

A sealer since it penetrates and breathes is not very susceptible to floor moisture. Check with your vendor though. The plastic sheet method above is correct, just to clarify the sheet should be about 4' square and tape all four edges down.