I have a 9x12" granite surface plate which I usually exclusively as a level surface for wet-sanding/lapping parts after I have milled them in my TAIG. I'm curious - any harm in leaving the granite plate submerged in water for hours/days?
I wet-send in a large tupperware bin with surface plate submerged in water. I used to drain the water everytime, but it would be nice if I could just leave the water in it...
Thanks.