You can leave the tape on for a few days.
How to fix cracked concrete in shower floor.
Load the caulk cartridge into the cradle of a caulk gun then snip about 1 8 in 0 32 cm off of the tip.
Chisel the crack with a hammer and masonry chisel to widen the base of the crack and to dislodge any loose material from the old concrete.
Squeeze the trigger and slowly run a bead of caulk into the crack.
Take the fiberglass gel coat which you will match with the color of the rest of the shower base and apply it on the repaired areas using a roller.
A paste type kit works well for minor cracks.
If desired clean the crack with a pressure washer or a garden hose and spray nozzle.
Use a shower pan repair kit for a hole or crack in the shower floor or for a crack caused by lack of support between the wall and the shower surround.
With a cold chisel and large hammer undercut the edges of the crack.
Remove all debris from the crack using a wire brush.
With a wire brush clean the crack.
The shower will be ready for use in 24 hours.
You can seal a solid concrete shower base that has small cracks.
Then rinse the area.
After hurricane harvey took out a big tree in my driveway and caused some serious cracks i made a time lapse video of fixing them this is not a how too t.
In this video we show you step by step process when we patched a few broken and chipped concrete slabs this product work great on repairing broken edges cor.
If grease oil or dirt remains in or near the crack clean it thoroughly.
Before placing the topping mix a slush coat of portland cement and water is broomed into the surface.
First use a small hammer and chisel in combination to knock away any cracked crumbling or loose concrete.
Chip to a depth of about one inch below the surface plane.
Use a caulk gun to fill the crack with the urethane compound.
Sweep away any loose debris then vacuum the crack.
Pause periodically so the compound can seep into the crack as deeply as possible.
Details of this procedure are given in the reprint collection on repair available from concrete construction.