You just use color match to the grout caulking there, no 1/4 round needed.
If you still want to use something there even though it would be the wrong way to do it, I'd suggest using vinyl cove moulding instead and attach with silicone caulking.
Cove moulding will tend to devert the water away from the gap not let water sit on top of it like 1/4 rd. would.
If you still want to use something there even though it would be the wrong way to do it, I'd suggest using vinyl cove moulding instead and attach with silicone caulking.
Cove moulding will tend to devert the water away from the gap not let water sit on top of it like 1/4 rd. would.