Hello Fred,
This is a wonderful product. I went looking for 1mm bristol board at Curry's Art Supplies and was disappointed to find that it was not available. Instead, I found this 2mm white board.
You would think this heavy board would be difficult to cut. But the blade of a #11 X-acto knife sinks deep on the first pass. The board is a homogeneous white all the way through. No lamination. It reminds me of matt board used in art galleries.
It is called Rising Conservation Matboard. A sheet is 32" x 40" The code at Curry's is RIS3240W1.
I highly recommend this product Fred. It is strong, easy to cut and is very clean on the cut edge.
Curry's website: https://www.currys.com/generic…TORE%20MAPS%20%26%20HOURS
Cheers...John