T-Wicks Fabric Screen Printing Inks Are Environmental Responsible, Specially Formulated, Fully Water Based Acrylic Inks Suitable For Use On Many Types of Fabric, Including 100% Cotton and Synthetic / Cotton Blends. The Viscosity (Thickness) of The Ink Can Be Adjusted With Suitable T-Wicks Additive Products For Other Application Methods Such As Hand Painting Or Air Brushing.