SolarFast Light Sensitive Dye

SolarFast – Odorless and safe for children! SolarFast dyes are light-sensitive and only develop color and become permanent upon exposure to sunlight (UV). SolarFast SolarFast dyes are light-sensitive and only develop color and become permanent upon exposure to sunlight (UV). This unique property means SolarFast may be used to create remarkably detailed photographs, photograms and […]