thanks, great info
the sand float won't be the topcoat. I do that on the middle coat because I found that it effectively removes any wave that may have formed, making the top coat that much easier to apply.
And I do know about soaking it too. It is not actually 100% necessary, but it is definitely worth it. The lime will work if you just mix it straight into the sand with water, but won't work as well.
Thanks for the info about clay too.
But what I was considering is more or less a clay undercoat, an outer coat with a little lime mixed in for hardness, a a limewash or whitewash finish. So it would technically be a clay wall altogether.
