My parents were in Melfort Saskatchewan this past weekend and sent me this photo of the memorial plaque I made for my Grandmother's ashes that are buried there next to the Eastman family that raised her. I am actually really quite surprised that it has done so well. It is exposed to the rain, sun, snow & freezing cold weather that Saskatchewan gets. It has been exposed to about 3 winters now and no cracking or anything. So if you are looking for a material that will withstand the rigours of being outside, Laguna cone 5 Bmix (fired to cone 6) will do the job. The glaze itself is crazed, but this glaze naturally does that, so no big deal there either.