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Mortar for Sandstone block foundation

953 Views 1 Reply 2 Participants Last post by  Windows on Wash
The mortar in my sandstone foundation needs re pointing. From what I have read, modern mortar is too strong and can risk cracking the stone. Any advice on proper mortar I should use? I have read about lime mortar, but see conflicting reports on using hydrated masons lime versus fired slake lime? Can't find it anywhere.
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