I bought my grid in Black from a specialty store in my area for the same price as the white grids from Lowes. The ones I purchased are stronger so they support Drywall Tiles.
I bought a few pieces of white and painted them black as many mentioned on the forum. The paint scratched right off as soon as you take your finger nail to them. If painting, I'd definitely prime them first, then paint. Try one of your 2' Ts first to see how it works. If that doesn't work well, rough up the rail before priming and painting.
Like Tony, I bought my tiles in black. They weren't any more money than the white, the distributor dropped them off right to my door.
If you go to Lowes/Home Depot, they will special order the black tile fore you, or you can do what I did and go online and check the manufacturer for local distributors, and contact them. I used www.usg.com , but I know Armstrong is another manufacturer of drop ceilings.
Run a search in this forum using the current thread search engine. There are quite a few threads with a ton of info that people have already posted on this topic. Many general topics as you can imagine have been discussed in previous threads...so a search first before posting is always recommended to get the information you need quickly.
Here's just a small portion of the threads on this topic (also related topics). I used "ceiling," then "painting" as my search words:
Like others in this thread, I bought my tiles black. I special ordered mine from Lowes. I then bought the regular white railing, mouldings, cross tees, etc... and just spray painted them flat black. Overall they kept the paint on with just a few places that needed some touch up work.
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