Plastisol is a type of ink used in screen printing and textile applications. It remains in a liquid state until heated, at which point it solidifies. Plastisol colors are vibrant, opaque, and durable. They’re commonly used for fabric printing, especially T-shirts, hoodies, and other apparel items. The one-line description would be: “Plastisol colors are heat-curable inks used for screen printing on textiles.