Tools For 3D Modeling & Printing
Just in case you were wondering what paint works well with 3D prints, I'm still exploring. I started with cheap Walmart paints. They work fine, but they don't always cover very well and you have to let the paint dry and repaint several times. After a little searching I have started using Vallejo paints. They work really nicely. I purchased the Vallejo Basic USA Acrylic Colors Paint Set, 17ml, Assorted Colors, 0.57 Fl Oz (Pack of 16) from Amazon. I've been pleased with it.
You always have to give the prints a good coat of primer. I typically use the Rust-Oleum 2X Paint+Primer. I suspect any primer will work, but this is what I like. And, if you're just doing one color, you're done after spraying. AND I like to use Matte paint. It usually takes the other paints better.
Finally, you want to hit the piece with a clear coat of paint. I prefer gloss or simi-gloss, but satin or matte would work just as well. Not only does it make the paint seem to smooth out, it also helps secure against the paint scratching off. Again, I get mine at Walmart. Again, Rust-Oleum 2X is my favorite, but you do you.