Quick Answer: Absolutely not. Full Answer: Our It Glows products are infused with the photoluminescent compound throughout, not just on the surface. This unique saturation ensures that no matter how you shape, sand, cut, or manipulate It Glows, its radiant glow remains unaffected. In fact, the compound's responsiveness to friction might even make it glow as you work on it. Discover the freedom to craft while keeping the luminosity intact with It Glows.