Fat lime is a term of phrase meaning pure lime putty and has nothing to do with a grease Mark .
You could be getting a tanned staining from sulphar or it could be high level of salts present like dropsalot says keep wiping the salts and be patient and don't use any detergent whatsoever this will...
Pissed off !
Acrylic wash off twice this week even though it had two days drying in good weather it re emulsified in rain bottom inch is knackered then to boot my van decided to have a little trip down our road straight through a wall
Right I've had three so it can go fxxk off!
We had a job where customer wanted sand and cement two of my lads didn't have a bloody clue .
I had to go and screed it all out for them first so all they had to do is fill in the screeds ffs in the same week one of them wanted a bloody pay rise the cheeky t**t .
The truth is young uns don't...
Knock off the existing render if you have time let the walls dry as much as you can .
l*m*-g***n , baumit , tellings, all do barrier mortar all lime based, use this on the damp areas as they will stop the salts coming through to the surface .
Then floating coat of lime render , I mix my own as...
There's a place for plazi trowels or flexi trowels for example curved ceilings or maybe an old stone built house rounded corners walls and ceilings all over the gaff following the undulations.
I don't think they're necessary in new work really I can finish just as quick flat and Matt with my...
Unilit 30 is specially made for the job the salts crystallise within the pore structure of the mortar stopping them coming to the surface.
Telling lime products make this
Also l*m*-g***n do one called Ultra although I'm not familiar with this product
I think it will maybe crack unless it's mixed for a long time and the water has saturated the perlite giving it more time to shrink if you know what I mean though I've never used multi granular perlite so it might be fine suck it and see I guess