All you folks looking to paint white vinyl windows in dark colors: the issue actually is more than whether the paint sticks, but there is a solution. in the same boat, I researched this last summer. Turns out that light colored windows, if painted dark, could absorb enough additional heat from the sun to warp the windows and affect their fit and performance. so there are two possibilities here, or three if you count leaving them alone. You can paint them a light color. Use the Zinsser primer that's good for plastics, and use any good quality (say that again: GOOD QUALITY! Cheaply made paint doesn’t cover, stick, or last like the good stuff. It just doesn’t.) light colored paint. But if you really, really want a dark color, all is not lost. Both Benjamin Moore and Sherwin Williams manufacture paint specifically for vinyl siding, trim, or windows in a limited range of colors that includes some nice darks and brights. It’s formulated to reflect light so less heat builds up. You’ll have to special order it and it costs more. Your paint store person may not even realize it exists, but you can show them on the manufacturer website. Worth it not to have to replace those windows.

Viking was purchased by Pella, then suffered a series of lawsuits due to failures and leaks. Viking line is now branded Thermastar. Google "Pella, Viking, lawsuit" Contact Pella and ask for painting info regarding the Viking window.

I want to paint my oak trim white. The frame around the window is vinyl and also an oak color. Can I successfully paint the vinyl? I will remove them if necessary. Tried searching YouTube for instructional videos and none came up. Wondering if that's because it can't be done. And if it can, will I have problems with peeling down the road?

I would love something like shoji white but I’m not sure how that would Look against the almond. I'll take working with almond over stark white windows any day - so much easier. Can tell you how I deal with them. "Almond" is not the same color brand to brand so we measure the color of the windows. We use a Spectro 1 Pro, but a more affordable Color Muse works too. Settings in the app have to be Illuminant D65, 2 degree observer. One of the windows in the app will give you the hue angle of the Almond color. Then it's just a matter of finding colors in the same hue angle range. If you do that, post back with the hue angle and I can post a list of colors that fit. A color like Shoji is definitely possible, just need to make sure it aligns - relates correctly - with the Almond.