Diluting the paint and feeding the pen. You will need an old brush, an ink dropper, water and a small white saucer or paint palette. Squeeze out about 5 mm of paint from the tube into the mixing palette. Using the ink dropper, add water to the paint and mix with the brush. Add more water, drop by drop, until all the paint is mixed and is the consistency of thin, runny cream. Use the brush to feed the paint into the pen by stroking it on the side or top of the nib. When you have finished, cover the palette loosely to keep out dust; add more drops of water and mix thoroughly when you want to use it again.
