Do I need to paint over the Zinsser (BIN) with concrete floor paint?
In the normal course of events your coat of Zinsser would dry quickly and odours gone shortley after. I am wondering if you have put this coat on quite heavily and if the floor had ‘pores’ in the surface and you flooded it in the name of doing a thorough job. The heavier a coat of paint the longer it takes to dry and it needs air to complete the drying process, so I am also wondering how soon afterwards you laid your laminate floor and maybe stunted the drying process. I would take the laminate floor up and allow the floor to breathe and complete the drying process. It may be touch dry, but Zinsser is a hard inflexible paint and it should not feel soft if you press your fingernail into it. If it does then it has not hardened (completely dried) and needs air to complete this. You can speed up the process with fans or a warm but ventilated environment. Depending how thick the paint is I would leave your laminate floor up anything from a few days to a few weeks, monitoring it as you go. A
