My garage floor looks ugly because of spotty efflorescence, recurring especially in winter. It disappears when I power-wash it but after a few weeks it recurs. I have also washed it with mild acid which, too, makes is go away for a while.
My home is 30 years old. There are no cracks in the floor. The white stuff just does not look right.
Can I paint over this stuff with epoxy, or cover it up somehow?
Anyone has the same problem and solved it?