Not quite a brush. Not quite a palette knife. Catalyst tools are crafted from flexible silicone to allow artists a new form of expression. Wedges are ergonomically designed to fit in your hand allowing a direct interaction with your work. Designed for use with heavy-bodied paints, Catalyst is at home with oils, acrylics, and water-miscible oils. They are heat-resistant, and excel with encaustics. Artists are using them with plaster, clay, and even frosting! Made of FDA-approved silicone, they are great for food crafting. Clean-up is a breeze. The silicone is easy to wipe clean and is solvent resistant, but in most cases can be done with mild soap and water. Dried paint can be peeled off, and blades can even be separated from their wood handles for cleaning.