I have used putty on the wall to fix the holes, and fill some gaps. the putty color is white while the rest of the wall is an older light green, I am painting a very dark yellow, However when painting ...
The putty is sealing a window and has has spent three weeks drying. I've heard that you can use water based paint over linseed oil putty, but I want to check. It was a Selleys linseed oil glaziers ...