Iridescent Medium. Basics Mediums are essential for experimenting and enhancing your paint practice. You can change color opacity, drying time and texture, and protect your finished work. Mix with paint to give it an iridescent finish, or use on its own to add surface highlights.

• Gives a smooth iridescent appearance
• Increases paint transparency
• Extends your color without affecting acrylic stability
• Slows drying time so you can create more subtle color blends
• Thins heavier body paints