Mica powder is commonly used in resin for a variety of applications, adding shimmering effects, color, and texture to resin art. But what is mica powder used for in resin exactly? The primary role of mica powder in resin is to impart a beautiful, lustrous sheen that reflects light, creating an eye-catching finish that makes resin pieces truly stand out. Whether you're designing a statement resin tray or crafting jewelry, mica powder can elevate the visual appeal of your project, giving it a professional and polished look.