Catalyst Contours are designed to work with pastes, gels and heavy- bodied paints. Contours are also ideal for cake decorators and other food artisans. Made of durable nylon with a soft-touch coating, Contours are ergonomically designed. They allow a direct interaction with mediums and surface to create unique textures. Contours are more stiff than their silicone predecessors. Contours are dishwasher safe and heat resistant up to 285 degrees C.