Solid Ink The Mixer: Dilute & Lighten Tattoo Colors Solid Ink's The Mixer thins tattoo inks for faster application or lighter shades. Perfect for black and grey work, it breaks down lining black for various grey tones. Available in 2oz, 4oz, and 8oz sizes. Made in the USA with a 3-year shelf life. Shop Solid Ink The Mixer and explore a world of color control! Solid Ink's "The Mixer" is great for diluting colors, making them slightly lighter for faster tattooing or color fading. Perfect for breaking down Lining Black in order to get different shades of grey for your for black and grey work.About Solid InkSolid Inks are easy to work with, tend not to harden up in ink cups, and heal super bright and solid. Manufactured from the highest quality natural pigments. Concentrated to ensure maximum color saturation. A proprietary blend of organic pigments, vegetable glycerin, distilled water, and Hamamelis (Witch Hazel).