I have put two coats of Zinsser 123 Primer on MDF doors, followed by two coats of Crown Satin white non drip water based paint. Its not covered well and is patchy, some bits shiny, some matt.
I have also done some MDF shelves with the Zinsser, followed by 2 coats of Dulux oil based coloured satin and they look great.
So the problem seems to be with the water based top coat. I don't want to use oil based white as it will yellow, neither do I want to sand off the whole lot and start again :-/
Should I have done more sanding between coats or will that make no difference? Is it the paint and is there a water based one I can use?
I have also done some MDF shelves with the Zinsser, followed by 2 coats of Dulux oil based coloured satin and they look great.
So the problem seems to be with the water based top coat. I don't want to use oil based white as it will yellow, neither do I want to sand off the whole lot and start again :-/
Should I have done more sanding between coats or will that make no difference? Is it the paint and is there a water based one I can use?