Can you tell me what I have to do when I am painting the technic One Stroke by Donna Dewberry, my brush become thick and it does not a good job. It is a new bottle of paint, and I have try to put "Floating Medium" but it does not help on the thickness of the paint. It just help to slide better. It's seem that the pain stick on the brush. Do I have to clean my brush a few time while painting? If so, what is the product that I have to buy?
Please help. Thank you