Plaster in the basement

[luksi1]

I just wanted to double-check here. I'm planning to plaster this wall with C-bruk. Is it the right choice? Or have I missed something?

 

[JohanLun]

You need to find out if it is lime or mortar first. If the house is old (100 years), there is a fairly high likelihood it is lime mortar. If it is new (40 years old), there is a fairly high likelihood that c-bruk is suitable.

As I understand, lime mortar can be used on cement, but not cement mortar on lime.

 

[luksi1]

You need to find out if it is lime mortar or cement mortar first. If the house is old (100 years), there is a pretty good chance it is lime mortar. If it is new (40 years old), it is quite likely c-mortar will suit.

As I understand it, lime mortar can be used on cement, but not cement mortar on lime.

It's cement and leca blocks behind. But maybe lime mortar would be more suitable?