I have had some walls skimmed and am thinking I might need to do some spot priming before applying a mist coat. This is to deal with two things:
1. Because of the shape of the room (it's actually the hall/stairs/landing) there are quite a few corner beads. They are quite shiny which I think might indicate that the galvanising has been lost to some extent. But in any case, I'd rather be safe and am concerned that emulsion won't adhere properly.
2. There are at least a couple of small runs, and some spots, of PVA.
I have seen thinned down oil-based undercoat being recommended. Would this deal with both of these issues? And what sort of undercoat exactly? Would just a normal Dulux oil-based undercoat such as you might use for woodwork do the job. Or do I need something more specialist?
I have also seen Zinsser 123 recommended. Would this do the job? Be better or worse than the undercoat? This is acrylic - not oil-based - as I understand.
Any advice appreciated. Thanks!
1. Because of the shape of the room (it's actually the hall/stairs/landing) there are quite a few corner beads. They are quite shiny which I think might indicate that the galvanising has been lost to some extent. But in any case, I'd rather be safe and am concerned that emulsion won't adhere properly.
2. There are at least a couple of small runs, and some spots, of PVA.
I have seen thinned down oil-based undercoat being recommended. Would this deal with both of these issues? And what sort of undercoat exactly? Would just a normal Dulux oil-based undercoat such as you might use for woodwork do the job. Or do I need something more specialist?
I have also seen Zinsser 123 recommended. Would this do the job? Be better or worse than the undercoat? This is acrylic - not oil-based - as I understand.
Any advice appreciated. Thanks!