Test panel: Right side addition of MPP Grout and SCP HP, Left Only Hardener and sealer. Note that there is no apparent color difference between the two sides.
@30 minutes the left side showed .25 mil drop, right side zero drop.
@2 hours the left side showed .5 mil drop, the right side zero drop.
@24 hours the left side showed 2.5 mil drop, the right zero drop. There is now an apparent damp ring around the left side tube.