There are pigments, binders, thickeners, and sometimes, even co-solvents in the ink residue. However, the water-based ink is not just water. There is a common misconception that because water can be used for cleaning screens, squeegees and tools, that the waste water can just be discharged in the sewer. Cleaning Screens, Squeegees, Spatulas, etc. Colours maintain their brilliance while achieving a transparent finish. Water soluble screen inks can be mixed with this transparent extender. In addition, when a water-based print job will take more than one day, the ink must be removed and the screen cleaned with to prevent drying. While modern water-based inks are less prone to this phenomenon, it is still a concern. Practiced water-based ink printers must always be conscious of how long a screen sits between prints to prevent the ink from “drying in”. If water-based ink is left in open mesh for even a short period of time, it can clog the mesh and ruin the screen. Since water-based inks contain water as an evaporative solvent, care must be taken to prevent the ink from drying in the screen. The evaporation of the water is necessary to set or cure the ink. ![]() All water-soluble printing inks can be mixed with a transparent extender base to achieve transparency, and are easy to clean up with a little soap and water. These inks perform wonderfully on printmaking archival paper, cardboard stocks, etc. They dry to a smooth, matte finish, and remain water soluble. They are completely safe for use in print studios, at home, at school, or in an industrial setting. Speedball Screen-Printing Inks are non-toxic, nonflammable water soluble inks.
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