Is this the right plaster for cob?

[dllive]

Hi,
I have a cob cottage. The builders said they used lime. I found one of the bags they used and its "hydraulic" lime, this one to be exact: https://www.ebay.co.uk/itm/NATURAL-...LIME-SAND-MORTAR-PLASTER-RENDER-/151416211410

Is this the right type of lime for cob? Theyve used it both on the inside and outside of the walls.
Thanks

 

[Bonni]

http://www.limestuff.co.uk/pages/user-guides/hydraulic-or-non-hydraulic-lime.html

Selecting the correct lime for the job

The correct type of lime should be selected according to the job. Lime putty is always recommended for use with cob, strawbale and timberframe. Also in areas with soft brick or stone unless the location is in a particularly exposed location in which case a NHL 2 or 3.5 is recommended. For hard brick or stone a NHL should be used, the strength of which is determined by the exposure of the location. A NHL3.5 or 5 is advised for below ground works, footings and rendering or pointing to cellars.