primer

Hi all, Happy New Year, hope everyone had a good one! Quick question from me if I may, I have removed Artex and plaster from hallway and will be left with this. I am completely new to this so would I be right in saying this is the bonding coat that I have left? It's relatively thick and beneath...

Has anyone used Gyp Prime for walls before Dot and Dab? Sand lime bricks walls suction level is too high even with 2 coats PVA. I know its expensive but not as expensive as re doing it!

Im looking for an alternative to DG27. Its really expensive and I need a primer. Thinking I could mix it up myself if I got the ingredients..... Anyone know of any cheaper alternatives or how to make it?

We've got a badly done mono that we are tidying up for a customer. We've put a nice tight coat of Nivoplan all over it and will be spraying Mapei 1.5mm bucket coat over it to finish. We always prime first but I've been told it's not necessary unless it's an old, dry background. We want it to...