I use trim solovent on a regular basis.It basicaly works to "glue" the covering onto another piece of covering, rather than trying to use heat to adhear it.It helps to create a bubble free finish.

For example, if you wanted to lay a stripe on a wing, like a star burst design, if you were to simple lay the stripe on the wing and heat it down, more than likely you will end up with air pockets trapped between 2 layers of covering. The other problem with heat, is it shrinks the covering, thus distorting your stripe.

Now, if you did that same stripe with trim solovent, the solovent would allow you to move it around a small amount, as well as push the air bubbles out.Lay the stripe down, and working from the middle out towards the edges, with a rag, gently push the air bubbles out. When ur done, should be no air bubbles.

Where the trim solovent shines, is doing pin stripeing. The trim solovent holds the pin stripe down much better than just heat alone.

Also, if you want to make decals useing covering. The trim solovent is a must, as its very difficult to use heat on small pieces.

If you are not sure about how it works, my sugestion is to look around for some videos on useing it. You would be amazed, once you learn how to use it, what the trim solovent allows you to create. The attached pic is a decal I made for my frenzy, useing layers of covering and trim solovent.