Hopefully someone can offer some suggestions on my 6 week old epoxy floor that just started blistering by the garage door where an old control joint was. I believe my problem maybe the way I filled it in. I used backer rod and legacy industrial joint filler over top. The problem is the end of the joint is still open in a way?? How do I remove the blisters and most importantly if I have water under there how do I get it out and prevent future water intrusion?
Thanks



Thanks



