Hi guys. I previously started a thread about painting masonry paint on masonry sills. The sills previously had gloss paint on them which caused problems.
I finally did something about it this weekend and scrubbed off what i could and then took a blow torch to the remainder and fried the lot
*lol*.
Having got to bare masonry, well it's left with some chalky white stuff. I will wash down what's left and go over with some sandpaper.
Do i now need to use any undercoat? or can i go straight ahead with masonry paint (which hopefully won't flake and blister this time round).
Many thanks for any comments in advance.