I've read in a FS Modeler that this stuff is ideal to glue very small windows, or as repalcement for small windows. It's inwexpensive and I ordered some that I can't wait to try on my 1/144 aircraft.
I've received the Microscale Kristal Kleer after 8 days from ordering it. I am testing it to see how well it works. So far, it has a little bubble. I'll try again. It comes out as white glue but when dried, it is supposed to be "cristal clear" while white glue remains opaque. The window on the left is made with Kristal Kleer and is tarting to become clear after about 3 hours. The others are made with white glue and are remaining opaque and have several bubbles.
Here's a serious attempt at replacing the cockpit windows that I had to paint over because they were glazed from plastic modeller's glue. I cut out one window, and filled it with Kristal Klear. We'll see what happens when cured.