I don't know where people have got this idea of mixing pva into paint from. It's something I would strongly advise against.
The problem with pva is that it will sort of act as a barrier against any moisture. This can cause the paint to peal off. Also you just don't know how the paint will react to it.
The problem with pva is that it will sort of act as a barrier against any moisture. This can cause the paint to peal off. Also you just don't know how the paint will react to it.