Hi all. I have 2 very small vertical foundation crack about 12" above grade. It's widest spot prob barely even 1/16" Looks like a small settlement surface crack (I hope). Other crack is same but in the corner where house foundation intersects with garage stem wall. Basement is fully finished so can't see the inside. Anyway what's the best way to patch this up instead of using any concrete caulking material I'm looking for something more permanent. Maybe a thin quick set mortar? I'd rather use a mortar but not sure if the crack is too small for it. Any ideas?