I saw someone posting on Facebook about a great tip they discovered. They attached the pre-painted Eduard self adhesive (SA series) instrument panels to tape to simulate glass. Well, I had tried that years ago and found that the tape's adhesive would dry out and turn amber at worst, yellow dust at best.
So, here is what I did after some more thought. I simply used cellophane, but not tape. Cellophane sheets are used for protecting papers and on some packages. There is no adhesive so you use what you want (PVA works best).
In this photo, the panel has a pebbly finish which is fine. The cellophane is already in place to simulate glass.
Here, we see that the finish is actually horizontal lines. I don't care for it and prefer Yahu's approach. However, I will keep this one as I plan to have a pilot that will limit the focus into the cockpit, sort of a cock
pit blocker.
In the photos above you can see the effect. Simply cut the panels needing the glass off the fret and press onto the cellophane. Then trim away the excess cellophane. I will state that you should use a brand new and sharp knife. I've found the sharpest to be Swann-Morton scalpels and Olfa plus X-Acto Z blades for hobby knife handles.
Regards,