Steve brought next idea :
Just had a nice new garage installed and now need to seal the bottom
of it where it meets the base. Fair enough.

If you will take my advice on doing this....

I assume you are putting a strip of cement in a triangular shape
between floor and garage wall of about 2"?

What I found was that the walls tend to move about a little due to
expansion and contraction. If the cement is stuck to both wall and
floor it will tend to crack and has to either part away from the floor
or wall. After repairing mine several times, I eventually settled on
doing it the following way and no problems since...

Put a narrow bit of thin ply/hardboard or similar against the wall, put
in the web of cement then when the cement is almost dry remove the ply.
It leaves a gap to allow the walls to move a little and the cement will
still remain solidly adhered to the floor. You can always fill the
small gap remaining with a flexible sealant.

The idea of the web of cement is simply to prevent water running in
along the concrete base.

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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.org