SolarFast dyes can be used to dye natural fabric or paper. SolarFast develops and becomes permanent after being exposed to the UV rays of the sun; it can be used to create continuous-tone photographs, photograms and sun-prints. Use for screen printing, stamping, batik, tie dye and more! SolarFast is odorless and cleans up easily with water; it can be used to dye paper, rag, cotton, linen, canvas, hemp, silk, wood and any other natural fiber or blend. Expose to sunlight or equivalent UV for 10-15 minutes to develop colors. Use with SolarFast Thickener for screenprinting applications. Prints zero-relief and does not affect surface texture.