How long can lime mortar be stored?
We supply our premixed lime mortars in sealed dumpy bags or sealed tubs. It will last indefinitely as long as long as air cannot get in to carbonate the lime. This means keeping it from drying out and storing it free from frost. Mortars with hair teased in will gradually lose the hair as it dissolves in an alkaline wet mortar and you will end up with an unhaired mortar. Mortar left for many months will take more “knocking up” to plasticise the lime mortar.
