If there ever was a modelers' secret, this is it. Micro Kristal Klear can do so many things, you will not believe that any product can make such a big difference in the appearance of your models.
First, Micro Kristal Klear is a liquid that can be used to form very real looking small windows up to 1/4" in size. It also is an adhesive for mounting clear plastic parts, windows, etc., on models. It can be used to make lenses both clear and colored with the addition of a little food coloring. What really makes a remarkable difference in your models is the simple fact that the clear parts can be joined to the painted parts with a completely clear adhesive. What this means is that you do not have to mask around the clear parts, something that is rarely completely successful any way. Plus the sills which are painted can be seen through the Micro Kristal Klear for the most realistic looking windows you will see on a model.
What the pros like best is that it is fast and easy and stays clear. It cleans up with water while wet and is waterproof when dry. You can tell when it's dry because it turns from milky white to clear. If you need a super strong and flexible adhesive for wood, plastic, paper or most combinations of dissimilar materials, this is a handy thing to have.
For the making of small windows, you just dip a toothpick in this thick liquid and apply a little all around the edges. Then, holding the toothpick as flat as you can to the opening, draw it across from one side of the opening to the other. You will pick up a bubble which will form a very thin window of scale thickness that is also strong and flexible. When installing larger clear parts, paint the model first. Just apply a little Micro Kristal Klear along the edges to be joined, put in place and let dry.