Thompsons water seal works AWESOME.

it seals the surface by being absorbed into the material, stone
concrete etc etc. its not a coating so it doesnt make anything slick.

just prevents absorbton. treated concrete no longer absorbs rain so
freezing doesnt do any damage.

best to repeat every few years, first time it will absorb a LOT,
reapply dont use nearly as much.

can darken surface slightly, so try somewhere if you suspect that
matters.

first application is ideally done by dumping out of can and spreading
with broom, let sit overnite, it can puddle without harm and will
evaporate if too much is applied.

hose off treated and untreated area.

treated the water beads, untreated it absorbs into the concrete and
darkens it.

thompsons is great.

I had concrete pads I fixed every year. after thompsons no futher
repairs ever needed this sidewalk and pads get rocksalted every
winter

just reapply every few years....