Thanks to the OP.
I am not a new to horse ownership, but have never had horses in this type of climate.
My horses are both bare right now.
We just had a few feet of snow but the bunk part is the daily highs are in the teens...nights in the negatives.
I have not tried the Pam, but have heard of it working well
So far on the days I was at the barn the ice and snow seemed to come out pretty easy with a hoof pick and then a swipe or so with the bristle end.