I received a sample of the new Uart recently and tested it out today (500 grit)
First I sketched out a painting. Didn't like it so I rubbed it out. Paper doing fine.
Then I sketched and painted with pastels. Didn't like it so I rubbed it out...again. Paper doing fine.
Then I sketched, painted, and douced it with Turpenoid. Paper nice and dry, no warping at all! Paper doing great! Me on the other hand am not doing so well at this point.
Then I painted, rubbed it out, painted it again, rubbed it out again. Paper still doing fine. 5 Foam brushes not doing so well.
This time I was really careful to paint on it. Unfortunately I didn't like it again so I took out into the driveway, stomped on it several hundred times, got the hose out and doused it with nice cold water... over and over and over.... I am happy to say, it dried, no warping at all!
Ok, last attempt........ didn't turn out so good ....... back out to the driveway, lit match and burned it!
BUT! I'm very happy with the new Uart Premium Pastel Paper. It is an excellent product!
It will withstand water, turpenoid, watercolor, and any other wet media. It doesn't warp at all. You can scrub it off and use it again...if you want to that is.
On the other hand, when you've lost all your talent and can't paint ANYTHING, put the uart away for a while and don't burn it.