I took two pieces of New Crest chalk, slightly cakie but not as bad as damp Master chalk.
Both pieces came from a box of 144 that I purchased a few mths ago.
There was a difference.
One cube sat in the South facing window, real hot Colorado sun, easily over 100 for many days, not all tho.
Set another over the forced air heat vent.
The forced air heat vent chalk cube was a little drier than the other.
bm
Both pieces came from a box of 144 that I purchased a few mths ago.
There was a difference.
One cube sat in the South facing window, real hot Colorado sun, easily over 100 for many days, not all tho.
Set another over the forced air heat vent.
The forced air heat vent chalk cube was a little drier than the other.
bm