The Factory uses a lot of different kinds of paint, though they use a lot of Golden Brand. Whatever brand you get, remember to get acrylic paint. You can use watercolors on PYOs but it’s a totally different effect than what the Factory does. Enamel and oil based paints should be avoided for large areas of a Windstone as they do not allow the gypsum to ‘breathe’ and may cause long-term problems with paint blisters, etc.
What color dragon are you repairing?
Volunteer mod- I'm here to help! Email me for the best response: nambroth at gmail.com
My art: featherdust.com