Composite Cork is a mixture of Cork and Rubber Materials combined that provides a superb Natural and Environmentally Friendly alternative to PVC Synthetic Teak. It has the advantage that it remains cool to walk on and it is a perfect barrier to condensation. It also substantially reduces engine noise and is softer to walk on. It is a durable product and is stain resistant. It can be sanded like wood. Like Natural Teak it will start to grey after a number of years - but if you prefer to keep the Cork Colour then it is possible to sand and cover with a treatment.