Painting vinyl

I installed white vinyl windows and would like to paint them. Is this possible?

Some people sell "paint for vinyl" online. And i do not doubt that it could be done but i know that 99.9% of the window manufacturers will void your warranty in a heartbeat. I have seen it done howevere and alot of companies have painted their windows but they do not warrant them for life like unpainted vinyl.

E-z

There are some specialty companies that "re-finish" vinyl siding, usually to settle a warranty claim, but painting vinyl windows is not recommended.

Yikes - you'll likely void the warranty. Vinyl expands and contracts with the hot/cold weather - they don't put a lot of expanders in paint to get it to adhere to a moving surface.
Same reason you don't see dark colored vinyl fencing and why dark vinyl siding looks worn after just a few years.
Sorry!

Definitely best left unpainted. The piant made for Vinyl messes up too.