The Glamour Board is more of a C2S type of product. I used to sell a ton of it but it has slipped in recent years. It is more of a cardstock.
I sell a really great 8.5mil Satin
paper that runs all platforms. It has wet strength properties but is not as soft as the Endura....the Endura has a lot more latex saturated properties than this stuff. It would survive a weekend outside in Atlanta in all months but March and April. 54"x164' (note the length) is $175