This is an old revision of the document!
Queenyuki 3D tech has nice products/prices
Tried the 0.08 inch one
This is the leveling best I could do
Alternative to PEI
Also lokbuild is supposed to be the best but 16x16inch is not available http://www.lokbuild.com/
PEI sheet for 15.75 x 11.81 sheet is $84 from Professional Plastics but you can find it cheaper
This one is just a nonadhesive sheet
cube([400,300,3]); inches 15.75 x 11.81