Painting windows and/or any kind of glass border is great for many reasons and AMAZING for one reason.
Yup, that’s right. What makes painting windows amazing, is this-
When it dries.
You get to Scrap it off like nailpolish!
As an avid nailpolish picker, this brings me mucho joy.
Don’t judge . Don’t you remember the joys of picking the dried Elmer’s glue off your hand as a child? Flipping awesome.
I guess before you get to experience this joy. You should probably do the following:
1) wipe down surface with damp rag
2) sand any rough spots, wipe down again.
4) paint! It’s recommended to use a “gloss” type paint on windows in trim.
—- my rule of thumb for gloss is, “more gloss, more problems”
Gloss is not forgiving.
New house/windows can go high gloss. For my old and weird house we went semi-gloss (Benjamin Moore White Dove) (swoon….)
You could use painters tape, or try to cut a really close edge. Orrrr…. You could paint it quickly (because you do things in 30min increments anyways) and have the joys of picking that sh%* off. Glorious!