Is the tilt/peel really needed?

I was looking at the DigitalWax Systems printer videos on youtube. They are very similar to form1, except they cost more, and print very very fine detail somehow. Also, I noticed that their resin tank does not tilt and there is no peeling motion. The build platform simply moves up and down to disengage/engage the part. What kind of coating would their resin tanks need to have to pull that off?

I wish the form1 will eventually be able to print such fine detail, because us jewelers need that.