Sebastian Molding Mud is a fiber-fused mud molds uncombed-looking style for drop-dread groovy locks. Great for sculpting Fused with fibers to hold your look all day Best for thicker, layered hair: Directions:.Sculpt into damp or dry hair to mold street-chic style. Blow with cold air to increase hairs moist-look volume. Blow with hot air for moist, head-hugging shapes. Spread through dry hair for shiny separations.