Sorry, never used the forums before, and have a question, what is the smallest crack you can fill with CrackMaster crack filler? I have been told it is 1/2″, but that seems excessive. I understood you could fill a 1/4″ crack no problem.
Their specs show you can go as small as 3/8″. I don’t see any reason why you couldn’t go as small as 1/4″ or even smaller… but I’m no expert in this area. Let’s see if someone else chimes in. Meanwhile, I’ll ask around.