Will be installing radiators in the basement with the new LVVP that will be commissioned on Tuesday. I have removed all loose plaster and used an angle grinder to remove most of the blue paint where the radiators will be placed. Once that was done, it turned out there was a larger crack in what I assume is lightweight concrete, and it looks like it has been repaired once before.
Question: Can I simply apply plaster mortar C over the entire surface, or should I use stronger material in the crack before plastering, like cement mortar? If so, which type?
Question: Can I simply apply plaster mortar C over the entire surface, or should I use stronger material in the crack before plastering, like cement mortar? If so, which type?
