Hi, Hope someone here can help? I am getting plastering done tomorrow and it needs to be a salt retardant plaster (chimney breast was having damp patches). I need to buy the materials today or tomorrow (in London) so this is a bit urgent.
What plaster do we need to use? Or is it more a case of buying a salt inhibitor addititve?
Should it be sand/cement or something like Hardwall?
Anywhere this stuff can be bought in London on a Sunday? Or a great shop that can talk me through what we need?
Many thanks for any advice!