Sally knows that having options is important. For the ultimate in mixing and matching, crackle overcoat comes in different shades which can be paired with any nail color. From bold blue to mature metallic s, you can create a unique mosaic design that modern and sophisticated. Wet to set in 60 seconds. SALLY HANSEN Crackle Overcoat Nail Polish adds a striking crackled effect to any base color, giving your nails an eye-catching, textured finish. With a quick-drying formula that sets in just 60 seconds, it’s the perfect way to elevate your manicure in no time.