Lime mortar/ render/ putty - what to use, large cracks, wall render, skim coat

just got a couple of photos - the large cracks aren't that bad

Will lime mortar 1:3 hydrated lime:sand be ok for these? Or maybe 1:4 lime:sand for the large filling mortar, then increase the lime content in the progressive layers up to 1:2 lime to very fine sand - or maybe even just diluted lime putty for the final skim coat?

Lack of consistent information on the internet. Keen to hear of anyone's direct experiences here, especially using powdered hydrated lime, many thanks

large cracks with filler rod - should I replace the filler rod with lime putty, given that lime has the self-healing properties in regards to building movement - and will powdered hydrated lime from Mitre10 be ok to make my own lime putty with? I read somewhere that dry hydrated lime will weaken over time if left to soak, in contrast to quicklime.

angle shot showing depth of the original lime render, and the final lime skim coat under the paint layer. Can I use 1:3 lime:sand mortar mix for this render?

Originally Posted by debunk

Hi there
Despite there being some discussion on this forum already about lime/mortar/putty, we are not allowed to bump threads more than 365 days old.....

You can have it bumped if you pm a mod with the url.

HI everyone, I'm updating this thread. I've now made a bucket of "Lime Putty" using standard brickies hydrated lime (from hardware store)

Before I spend hours mixing it into a mortar and rendering it all over my walls, can anyone tell me whether they have had any success with the standard hydrated lime, or do I really have to shell out for ready-mixed lime putty from WA? Apparently, other states in Australia have banned the use of the lime to make the putty, and it's only available in WA ATM - there are distributors in NSW and Vic, but the cost is around $35 for 20kg.

PS photo for your curiosity, see photo - the lime putty I made was simple to do and became a nice creamy consistency quite easily (with apologies to my hard-working drill)