There is a waterproofing product called xypex that coats concrete. When you get it wet its crystalline structure grows to fill cracks. It sounds similar to what

There is a waterproofing product called xypex that coats concrete. When you get it wet its crystalline structure grows to fill cracks. It sounds similar to what the article talks about. It looks good as well so if youre building a house consider using it instead of the black tar typically coating a foundation.