It might be unnecessary, but I performed this step because I didn't have a dust-free/clean-air location and the frame and fork were hanging overnight in my garage during a time with a lot pollen. I lightly sprayed it into a cloth and wiped sparingly.

You are correct, though, definitely do not use “Windex” or a regular glass cleaner; I specified Stoner Invisible Glass because it's residue-free.

Per Stoner's website: “Invisible Glass contains no added soaps, scents, or dyes – all of which leave behind a filmy residue. Our cleaner evaporates quickly and completely, leaving no streaks or haze on surfaces. Tested and proven to be 100% residue-free by independent laboratories.”

https://invisibleglass.com/collectio...window-cleaner

I'm pretty sure I even contacted them to confirm. Regardless, the Krud Kutter – Metal Clean and Etch will also clean up anything left behind. I should clarify however; I'll update my original post. Thanks.