Sennelier HC10 Universal Fixative concentrates 10 times more acrylic resin that conventional fixatives for a truly phenomenal product. It is lightfast, non-yellowing, permanent, and water resistant for outdoor use. HC10 also functions as an adhesive. The spray can features a swivel nozzle that allows for precise vertical and horizontal fan spraying. HC10 is ideal for pastels, charcoal, watercolor, ink acrylic, gilding, photos, and surface preparation and can be used on canvas, wood, glass, ceramic, porcelain, and wall surfaces.