Hi..... the LIMO sample didn't react at all. No smell and NO heat. I was told that because the sample came from an open bag it may have "air" slaked and returned to calcium carb (hope I have that right). My problem was that I started looking for "lime putty" as available here, couldn't find any. Then started looking for "hydrated" lime....what I didn't understand is that there is several kinds of lime/hydrated lime,"N" which is what we need, "S" and a couple of others. Then when the bag I picked up didn't get hot or dry well, cracked bad and it was a buffy colour I started searching for "quicklime" and hit a dead end.
At the moment I found by talking to a few more people that calcium hydrodide works....reacts with the air to seal in the colours. It does not get hot...so it's safer. I was told that "aged quicklime putty" is still the best.

" already hydrated lime in powder form (Ca(OH)2) "
I have a 5 gal bucket being delivered this week.
...and I will report back some time. Getting to be a busy.