Stay Open Transparent 225g
This is the most important ink that printmakers need. It will enable you to print an even colour on an array of papers. It is an ink in its own right, any amount can be added to a coloured ink in order to get the transparency and depth of colour you want from a coloured ink. It will also allow you to keep the transparency of the ink so that it can be used to overprint other colours and thus get other colours on the overlaid ink.