No - the adhesive on Ultracote is not the same as Monokote and does not react with windex or trim solvent.
I have tested ultracote-on-ultracote using Monokote Trim Solvent. TS definitely activates ultracote's adhesive creating a tenacious bond.
Free Bird is spot on with going slowly, very slowly. I had excellent results using a sock in conjunction with the lowest activation temp - no bubbles. This was the result whether I perforated the underlying covering or not.
Harry Higley did a book "Tom's Techniques" that focuses solely on film covering.