You can apply part B after A is dried. it still works. Not as easy as when it is wet. Worst case scenario, do a second treatment of the complete system.

Thank you for answering. In your opinion, If a second coat is needed, should that expense fall on me or the flooring company? I feel bad to have them pay for anything but I asked multiple times if they were comfortable using the product and they assured me they were. Honestly, I don’t think they even read the instructions because they were kind of arguing with me a little about the process and telling me you do all of step one with step two next day. Hopefully it will turn out okay without a complete new coat but I’m not sure how I should I handle the situation if not.

If, a second treatment is needed. It would be the responsibility of the client to cover it. Since, the contractor did not follow instructions and screwed it up. It's their responsibilty to make it right. If, you feel bad for them. Agree to pay for the product and they cover the labor and follow instructions. That would be a fair compromise.