Thread: Cracked Brush - What's that about!

I've been shaving with the same brush since I started with a straight razor; a boar bristle brush I got for a song off trade me (New Zealand equivalent of ebay) that has served me pretty well. Then a few months ago I noticed a whacking great crack down one side that literally appeared over night. Next thing I know there's a second one on the other side just as big! I can only guess as to the age of the brush but for it to suddenly crack like this was a bit surprising. So why after all these years does a brush suddenly decide to leap apart at the seams? I'll admit to not using a brush stand, but I struggle to believe that water in the hairs can split 6mm plastic. Anyone got any ideas?