i have not more information to add and hope it is ok
to ask a diverging question..... do you know what characterises the making of modern limewash?

it seems hard to find info on what modern paintmakers
do,know any sites to discuss such concerns?

i have used 3 types of limewash,one very washy and unbound,another one a good product and yet a further one
that is fantastic.
i think these people keep their cards down.

we get bags of lime putty in solution here in oz,thick plastic bag/double skin with an easy access spout. they are designed for plasterers and are cheap $5 for about 10kg
or is it 20 kg - i forget.

perhaps i could make a strong brew myself....hence info about binders.

gary you might check out this site
www.abilityproducts.com.au
it is very interesting on various materials (synthetic)
oxides,additives for cement....check their e-spheres.
best wishes.