Ektaflex? Yeah. We used to use that for quick color prints back in the 1980's when we were first starting to run daily 4 color in the newspaper.
Seems you exposed the paper normally in the enlarger then fed it through rollers in a plastic box - blue on top, white on the bottom - and it came out laminated. You pulled it apart to reveal the print after a certain amount of time.
Made darn good prints without plumbing or water at room temperature as I remember.
Buddy of mine with more money than sense bought up an entire upright freezer full of the paper and all the chemistry he could get his hands on when it was discontinued.
I had completely forgotten about this stuff until I saw this thread.