Many years ago now, the NSW National Parks and Wildlife Service installed Replas speed humps in the car park at Birdie Beach near Lake Macquarie. Like all Replas products made from recycled plastic diverted from landfill, they were recently inspected for wear and tear, and found to have survived intact and effective as traffic-calming devices. that’s despite the harsh coastal environment and conditions they are exposed to. Another case study in support of strong and durable recycled plastic: a material that won’t split, rot or attract living organisms, is colour-fast and impervious to sea and salt spray.