The synthetic deck with unique features Exterpark Tech Supreme Slate Gray is characterized by being composed of a 100% PVC foam solid body that offers a best slip and fire resistance performance. It is 40% lighter than a standard composite / wpc decking. It contracts and expands less, minimizing the need for joints and guaranteeing its stability. Its surface is a clear wood imitation. Its greater resistance to the sun makes its color does not fade easily with the sun’s rays, keeping its color and appearance intact for many years. With 25 years of guarantee.