I am painting on new pine skirting boards and door trim - I have treated the knots with 2 coats of knotting solution (quite dark unfortunately rather than the clear or white solution..) and then 2 coats of Leyland Acrylic Primer/Undercoat.
I can still see the dark marks where the knots are...
My windowsills are black with mildew in places and I'd like to paint them white. I was wondering how to treat the mildew areas to stop the black coming through the paint? (Was going to undercoat/prime then two coats of satinwood) Have sanded but still quite black.
I'm also painting some new...