"Made of hard, natural quartz sand particles and high-performance UV-stable acrylic resins, Elkay Quartz Luxe kitchen, prep/bar and laundry sinks are exceptionally durable and silky smooth. This makeup creates a hygienic, nonporous surface that resists germs. The composite sink comes in popular, neutral colors such as brown, black, gray and white plus bold colors like red, blue and mint.